Sync sample browser prebuilts for mnc-docs

Synced to //developers/samples/android commit
44c699bf11bae6c9eef1f8c56bd405d547e179e6.

Change-Id: I61ceec197e6fa420fc5a6d16e703aa1aab2b0c4e

samples/browseable/AgendaData/Wearable/AndroidManifest.xml

@@ -18,7 +18,7 @@
         package="com.example.android.wearable.agendadata" >
 
     <uses-sdk android:minSdkVersion="20"
-        android:targetSdkVersion="21" />
+        android:targetSdkVersion="22" />
 
     <uses-feature android:name="android.hardware.type.watch" />
 

samples/browseable/AppRestrictionEnforcer/res/layout/fragment_app_restriction_enforcer.xml

@@ -120,6 +120,7 @@
         </LinearLayout>
 
         <LinearLayout
+            android:id="@+id/bundle_layout"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:orientation="horizontal">
@@ -147,6 +148,7 @@
         </LinearLayout>
 
         <RelativeLayout
+            android:id="@+id/bundle_array_layout"
             android:layout_width="match_parent"
             android:layout_height="wrap_content">
 

samples/browseable/AppRestrictionEnforcer/src/com.example.android.apprestrictionenforcer/AppRestrictionEnforcerFragment.java

@@ -22,6 +22,7 @@ import android.content.Context;
 import android.content.RestrictionEntry;
 import android.content.RestrictionsManager;
 import android.content.SharedPreferences;
+import android.os.Build;
 import android.os.Bundle;
 import android.os.Parcelable;
 import android.support.annotation.NonNull;
@@ -105,6 +106,8 @@ public class AppRestrictionEnforcerFragment extends Fragment implements
     private static final String DELIMETER = ",";
     private static final String SEPARATOR = ":";
 
+    private static final boolean BUNDLE_SUPPORTED = Build.VERSION.SDK_INT >= 23;
+
     /**
      * Current status of the restrictions.
      */
@@ -138,6 +141,15 @@ public class AppRestrictionEnforcerFragment extends Fragment implements
         mEditProfileAge = (EditText) view.findViewById(R.id.profile_age);
         mLayoutItems = (LinearLayout) view.findViewById(R.id.items);
         view.findViewById(R.id.item_add).setOnClickListener(this);
+        View bundleLayout = view.findViewById(R.id.bundle_layout);
+        View bundleArrayLayout = view.findViewById(R.id.bundle_array_layout);
+        if (BUNDLE_SUPPORTED) {
+            bundleLayout.setVisibility(View.VISIBLE);
+            bundleArrayLayout.setVisibility(View.VISIBLE);
+        } else {
+            bundleLayout.setVisibility(View.GONE);
+            bundleArrayLayout.setVisibility(View.GONE);
+        }
     }
 
     @Override
@@ -280,7 +292,7 @@ public class AppRestrictionEnforcerFragment extends Fragment implements
                                         TextUtils.join(DELIMETER,
                                                 restriction.getAllSelectedStrings())),
                                 DELIMETER));
-            } else if (RESTRICTION_KEY_PROFILE.equals(key)) {
+            } else if (BUNDLE_SUPPORTED && RESTRICTION_KEY_PROFILE.equals(key)) {
                 String name = null;
                 int age = 0;
                 for (RestrictionEntry entry : restriction.getRestrictions()) {
@@ -294,7 +306,7 @@ public class AppRestrictionEnforcerFragment extends Fragment implements
                 name = prefs.getString(RESTRICTION_KEY_PROFILE_NAME, name);
                 age = prefs.getInt(RESTRICTION_KEY_PROFILE_AGE, age);
                 updateProfile(name, age);
-            } else if (RESTRICTION_KEY_ITEMS.equals(key)) {
+            } else if (BUNDLE_SUPPORTED && RESTRICTION_KEY_ITEMS.equals(key)) {
                 String itemsString = prefs.getString(RESTRICTION_KEY_ITEMS, "");
                 HashMap<String, String> items = new HashMap<>();
                 for (String itemString : TextUtils.split(itemsString, DELIMETER)) {
@@ -351,6 +363,9 @@ public class AppRestrictionEnforcerFragment extends Fragment implements
     }
 
     private void updateProfile(String name, int age) {
+        if (!BUNDLE_SUPPORTED) {
+            return;
+        }
         Bundle profile = new Bundle();
         profile.putString(RESTRICTION_KEY_PROFILE_NAME, name);
         profile.putInt(RESTRICTION_KEY_PROFILE_AGE, age);
@@ -364,6 +379,9 @@ public class AppRestrictionEnforcerFragment extends Fragment implements
     }
 
     private void updateItems(Context context, Map<String, String> items) {
+        if (!BUNDLE_SUPPORTED) {
+            return;
+        }
         mCurrentRestrictions.putParcelableArray(RESTRICTION_KEY_ITEMS, convertToBundles(items));
         LayoutInflater inflater = LayoutInflater.from(context);
         mLayoutItems.removeAllViews();
@@ -500,6 +518,9 @@ public class AppRestrictionEnforcerFragment extends Fragment implements
      * @param age      The value to be set for the "age" field.
      */
     private void saveProfile(Activity activity, String name, int age) {
+        if (!BUNDLE_SUPPORTED) {
+            return;
+        }
         Bundle profile = new Bundle();
         profile.putString(RESTRICTION_KEY_PROFILE_NAME, name);
         profile.putInt(RESTRICTION_KEY_PROFILE_AGE, age);
@@ -515,6 +536,9 @@ public class AppRestrictionEnforcerFragment extends Fragment implements
      * @param items    The values.
      */
     private void saveItems(Activity activity, Map<String, String> items) {
+        if (!BUNDLE_SUPPORTED) {
+            return;
+        }
         mCurrentRestrictions.putParcelableArray(RESTRICTION_KEY_ITEMS, convertToBundles(items));
         saveRestrictions(activity);
         StringBuilder builder = new StringBuilder();

samples/browseable/AppRestrictionSchema/res/layout/fragment_app_restriction_schema.xml

@@ -59,7 +59,7 @@ limitations under the License.
             android:textAppearance="?android:attr/textAppearanceMedium"
             tools:text="@string/your_rank"/>
 
-        <include layout="@layout/separator"/>
+        <include layout="@layout/separator" android:id="@+id/bundle_separator"/>
 
         <TextView
             android:id="@+id/approvals_you_have"
@@ -77,7 +77,7 @@ limitations under the License.
             android:textAppearance="?android:attr/textAppearanceMedium"
             tools:text="@string/your_profile"/>
 
-        <include layout="@layout/separator"/>
+        <include layout="@layout/separator" android:id="@+id/bundle_array_separator" />
 
         <TextView
             android:id="@+id/your_items"

samples/browseable/AppRestrictionSchema/src/com.example.android.apprestrictionschema/AppRestrictionSchemaFragment.java

@@ -19,6 +19,7 @@ package com.example.android.apprestrictionschema;
 import android.content.Context;
 import android.content.RestrictionEntry;
 import android.content.RestrictionsManager;
+import android.os.Build;
 import android.os.Bundle;
 import android.os.Parcelable;
 import android.support.annotation.Nullable;
@@ -57,6 +58,8 @@ public class AppRestrictionSchemaFragment extends Fragment implements View.OnCli
     private static final String KEY_ITEM_KEY = "key";
     private static final String KEY_ITEM_VALUE = "value";
 
+    private static final boolean BUNDLE_SUPPORTED = Build.VERSION.SDK_INT >= 23;
+
     // Message to show when the button is clicked (String restriction)
     private String mMessage;
 
@@ -82,9 +85,22 @@ public class AppRestrictionSchemaFragment extends Fragment implements View.OnCli
         mTextNumber = (TextView) view.findViewById(R.id.your_number);
         mTextRank = (TextView) view.findViewById(R.id.your_rank);
         mTextApprovals = (TextView) view.findViewById(R.id.approvals_you_have);
+        View bundleSeparator = view.findViewById(R.id.bundle_separator);
         mTextProfile = (TextView) view.findViewById(R.id.your_profile);
+        View bundleArraySeparator = view.findViewById(R.id.bundle_array_separator);
         mTextItems = (TextView) view.findViewById(R.id.your_items);
         mButtonSayHello.setOnClickListener(this);
+        if (BUNDLE_SUPPORTED) {
+            bundleSeparator.setVisibility(View.VISIBLE);
+            mTextProfile.setVisibility(View.VISIBLE);
+            bundleArraySeparator.setVisibility(View.VISIBLE);
+            mTextItems.setVisibility(View.VISIBLE);
+        } else {
+            bundleSeparator.setVisibility(View.GONE);
+            mTextProfile.setVisibility(View.GONE);
+            bundleArraySeparator.setVisibility(View.GONE);
+            mTextItems.setVisibility(View.GONE);
+        }
     }
 
     @Override
@@ -178,6 +194,9 @@ public class AppRestrictionSchemaFragment extends Fragment implements View.OnCli
     }
 
     private void updateProfile(RestrictionEntry entry, Bundle restrictions) {
+        if (!BUNDLE_SUPPORTED) {
+            return;
+        }
         String name = null;
         int age = 0;
         if (restrictions == null || !restrictions.containsKey(KEY_PROFILE)) {
@@ -201,6 +220,9 @@ public class AppRestrictionSchemaFragment extends Fragment implements View.OnCli
     }
 
     private void updateItems(RestrictionEntry entry, Bundle restrictions) {
+        if (!BUNDLE_SUPPORTED) {
+            return;
+        }
         StringBuilder builder = new StringBuilder();
         if (restrictions != null) {
             Parcelable[] parcelables = restrictions.getParcelableArray(KEY_ITEMS);

samples/browseable/AsymmetricFingerprintDialog/_index.jd

@@ -1,5 +1,5 @@
 
-page.tags="Asymmetric Fingerprint Dialog Sample"
+page.tags="AsymmetricFingerprintDialog"
 sample.group=Security
 @jd:body
 

samples/browseable/AsymmetricFingerprintDialog/res/values/base-strings.xml

@@ -16,7 +16,7 @@
 -->
 
 <resources>
-    <string name="app_name">Asymmetric Fingerprint Dialog Sample</string>
+    <string name="app_name">AsymmetricFingerprintDialog</string>
     <string name="intro_message">
         <![CDATA[
         

samples/browseable/AsymmetricFingerprintDialog/src/com.example.android.asymmetricfingerprintdialog/MainActivity.java

@@ -16,12 +16,10 @@
 
 package com.example.android.asymmetricfingerprintdialog;
 
-import android.Manifest;
 import android.app.Activity;
 import android.app.KeyguardManager;
 import android.content.Intent;
 import android.content.SharedPreferences;
-import android.content.pm.PackageManager;
 import android.hardware.fingerprint.FingerprintManager;
 import android.os.Bundle;
 import android.security.keystore.KeyGenParameterSpec;
@@ -59,8 +57,6 @@ public class MainActivity extends Activity {
     /** Alias for our key in the Android Key Store */
     public static final String KEY_NAME = "my_key";
 
-    private static final int FINGERPRINT_PERMISSION_REQUEST_CODE = 0;
-
     @Inject KeyguardManager mKeyguardManager;
     @Inject FingerprintManager mFingerprintManager;
     @Inject FingerprintAuthenticationDialogFragment mFragment;
@@ -74,71 +70,63 @@ public class MainActivity extends Activity {
         super.onCreate(savedInstanceState);
         ((InjectedApplication) getApplication()).inject(this);
 
-        requestPermissions(new String[]{Manifest.permission.USE_FINGERPRINT},
+        setContentView(R.layout.activity_main);
-                FINGERPRINT_PERMISSION_REQUEST_CODE);
+        Button purchaseButton = (Button) findViewById(R.id.purchase_button);
-    }
+        if (!mKeyguardManager.isKeyguardSecure()) {
-
+            // Show a message that the user hasn't set up a fingerprint or lock screen.
-    @Override
+            Toast.makeText(this,
-    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] state) {
+                    "Secure lock screen hasn't set up.\n"
-        if (requestCode == FINGERPRINT_PERMISSION_REQUEST_CODE
+                            + "Go to 'Settings -> Security -> Fingerprint' to set up a fingerprint",
-                && state[0] == PackageManager.PERMISSION_GRANTED) {
+                    Toast.LENGTH_LONG).show();
-            setContentView(R.layout.activity_main);
+            purchaseButton.setEnabled(false);
-            Button purchaseButton = (Button) findViewById(R.id.purchase_button);
+            return;
-            if (!mKeyguardManager.isKeyguardSecure()) {
-                // Show a message that the user hasn't set up a fingerprint or lock screen.
-                Toast.makeText(this,
-                        "Secure lock screen hasn't set up.\n"
-                                + "Go to 'Settings -> Security -> Fingerprint' to set up a fingerprint",
-                        Toast.LENGTH_LONG).show();
-                purchaseButton.setEnabled(false);
-                return;
-            }
-            if (!mFingerprintManager.hasEnrolledFingerprints()) {
-                purchaseButton.setEnabled(false);
-                // This happens when no fingerprints are registered.
-                Toast.makeText(this,
-                        "Go to 'Settings -> Security -> Fingerprint' and register at least one fingerprint",
-                        Toast.LENGTH_LONG).show();
-                return;
-            }
-            createKeyPair();
-            purchaseButton.setEnabled(true);
-            purchaseButton.setOnClickListener(new View.OnClickListener() {
-                @Override
-                public void onClick(View v) {
-                    findViewById(R.id.confirmation_message).setVisibility(View.GONE);
-                    findViewById(R.id.encrypted_message).setVisibility(View.GONE);
-
-                    // Set up the crypto object for later. The object will be authenticated by use
-                    // of the fingerprint.
-                    if (initSignature()) {
-
-                        // Show the fingerprint dialog. The user has the option to use the fingerprint with
-                        // crypto, or you can fall back to using a server-side verified password.
-                        mFragment.setCryptoObject(new FingerprintManager.CryptoObject(mSignature));
-                        boolean useFingerprintPreference = mSharedPreferences
-                                .getBoolean(getString(R.string.use_fingerprint_to_authenticate_key),
-                                        true);
-                        if (useFingerprintPreference) {
-                            mFragment.setStage(
-                                    FingerprintAuthenticationDialogFragment.Stage.FINGERPRINT);
-                        } else {
-                            mFragment.setStage(
-                                    FingerprintAuthenticationDialogFragment.Stage.PASSWORD);
-                        }
-                        mFragment.show(getFragmentManager(), DIALOG_FRAGMENT_TAG);
-                    } else {
-                        // This happens if the lock screen has been disabled or or a fingerprint got
-                        // enrolled. Thus show the dialog to authenticate with their password first
-                        // and ask the user if they want to authenticate with fingerprints in the
-                        // future
-                        mFragment.setStage(
-                                FingerprintAuthenticationDialogFragment.Stage.NEW_FINGERPRINT_ENROLLED);
-                        mFragment.show(getFragmentManager(), DIALOG_FRAGMENT_TAG);
-                    }
-                }
-            });
         }
+        //noinspection ResourceType
+        if (!mFingerprintManager.hasEnrolledFingerprints()) {
+            purchaseButton.setEnabled(false);
+            // This happens when no fingerprints are registered.
+            Toast.makeText(this,
+                    "Go to 'Settings -> Security -> Fingerprint' and register at least one fingerprint",
+                    Toast.LENGTH_LONG).show();
+            return;
+        }
+        createKeyPair();
+        purchaseButton.setEnabled(true);
+        purchaseButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                findViewById(R.id.confirmation_message).setVisibility(View.GONE);
+                findViewById(R.id.encrypted_message).setVisibility(View.GONE);
+
+                // Set up the crypto object for later. The object will be authenticated by use
+                // of the fingerprint.
+                if (initSignature()) {
+
+                    // Show the fingerprint dialog. The user has the option to use the fingerprint with
+                    // crypto, or you can fall back to using a server-side verified password.
+                    mFragment.setCryptoObject(new FingerprintManager.CryptoObject(mSignature));
+                    boolean useFingerprintPreference = mSharedPreferences
+                            .getBoolean(getString(R.string.use_fingerprint_to_authenticate_key),
+                                    true);
+                    if (useFingerprintPreference) {
+                        mFragment.setStage(
+                                FingerprintAuthenticationDialogFragment.Stage.FINGERPRINT);
+                    } else {
+                        mFragment.setStage(
+                                FingerprintAuthenticationDialogFragment.Stage.PASSWORD);
+                    }
+                    mFragment.show(getFragmentManager(), DIALOG_FRAGMENT_TAG);
+                } else {
+                    // This happens if the lock screen has been disabled or or a fingerprint got
+                    // enrolled. Thus show the dialog to authenticate with their password first
+                    // and ask the user if they want to authenticate with fingerprints in the
+                    // future
+                    mFragment.setStage(
+                            FingerprintAuthenticationDialogFragment.Stage.NEW_FINGERPRINT_ENROLLED);
+                    mFragment.show(getFragmentManager(), DIALOG_FRAGMENT_TAG);
+                }
+            }
+        });
     }
 
     /**

samples/browseable/BasicAndroidKeyStore/src/com.example.android.basicandroidkeystore/BasicAndroidKeyStoreFragment.java

@@ -156,7 +156,7 @@ public class BasicAndroidKeyStoreFragment extends Fragment {
         // generated.
         Calendar start = new GregorianCalendar();
         Calendar end = new GregorianCalendar();
-        end.add(1, Calendar.YEAR);
+        end.add(Calendar.YEAR, 1);
         //END_INCLUDE(create_valid_dates)
 
 
@@ -316,8 +316,7 @@ public class BasicAndroidKeyStoreFragment extends Fragment {
         // Verify the data.
         s.initVerify(((KeyStore.PrivateKeyEntry) entry).getCertificate());
         s.update(data);
-        boolean valid = s.verify(signature);
+        return s.verify(signature);
-        return valid;
         // END_INCLUDE(verify_data)
     }
 

samples/browseable/Camera2Basic/src/com.example.android.camera2basic/Camera2BasicFragment.java

@@ -28,6 +28,7 @@ import android.content.pm.PackageManager;
 import android.content.res.Configuration;
 import android.graphics.ImageFormat;
 import android.graphics.Matrix;
+import android.graphics.Point;
 import android.graphics.RectF;
 import android.graphics.SurfaceTexture;
 import android.hardware.camera2.CameraAccessException;
@@ -116,6 +117,16 @@ public class Camera2BasicFragment extends Fragment
      */
     private static final int STATE_PICTURE_TAKEN = 4;
 
+    /**
+     * Max preview width that is guaranteed by Camera2 API
+     */
+    private static final int MAX_PREVIEW_WIDTH = 1920;
+
+    /**
+     * Max preview height that is guaranteed by Camera2 API
+     */
+    private static final int MAX_PREVIEW_HEIGHT = 1080;
+
     /**
      * {@link TextureView.SurfaceTextureListener} handles several lifecycle events on a
      * {@link TextureView}.
@@ -344,31 +355,48 @@ public class Camera2BasicFragment extends Fragment
     }
 
     /**
-     * Given {@code choices} of {@code Size}s supported by a camera, chooses the smallest one whose
+     * Given {@code choices} of {@code Size}s supported by a camera, choose the smallest one that
-     * width and height are at least as large as the respective requested values, and whose aspect
+     * is at least as large as the respective texture view size, and that is at most as large as the
-     * ratio matches with the specified value.
+     * respective max size, and whose aspect ratio matches with the specified value. If such size
+     * doesn't exist, choose the largest one that is at most as large as the respective max size,
+     * and whose aspect ratio matches with the specified value.
      *
-     * @param choices     The list of sizes that the camera supports for the intended output class
+     * @param choices           The list of sizes that the camera supports for the intended output
-     * @param width       The minimum desired width
+     *                          class
-     * @param height      The minimum desired height
+     * @param textureViewWidth  The width of the texture view relative to sensor coordinate
-     * @param aspectRatio The aspect ratio
+     * @param textureViewHeight The height of the texture view relative to sensor coordinate
+     * @param maxWidth          The maximum width that can be chosen
+     * @param maxHeight         The maximum height that can be chosen
+     * @param aspectRatio       The aspect ratio
      * @return The optimal {@code Size}, or an arbitrary one if none were big enough
      */
-    private static Size chooseOptimalSize(Size[] choices, int width, int height, Size aspectRatio) {
+    private static Size chooseOptimalSize(Size[] choices, int textureViewWidth,
+            int textureViewHeight, int maxWidth, int maxHeight, Size aspectRatio) {
+
         // Collect the supported resolutions that are at least as big as the preview Surface
         List<Size> bigEnough = new ArrayList<>();
+        // Collect the supported resolutions that are smaller than the preview Surface
+        List<Size> notBigEnough = new ArrayList<>();
         int w = aspectRatio.getWidth();
         int h = aspectRatio.getHeight();
         for (Size option : choices) {
-            if (option.getHeight() == option.getWidth() * h / w &&
+            if (option.getWidth() <= maxWidth && option.getHeight() <= maxHeight &&
-                    option.getWidth() >= width && option.getHeight() >= height) {
+                    option.getHeight() == option.getWidth() * h / w) {
-                bigEnough.add(option);
+                if (option.getWidth() >= textureViewWidth &&
+                    option.getHeight() >= textureViewHeight) {
+                    bigEnough.add(option);
+                } else {
+                    notBigEnough.add(option);
+                }
             }
         }
 
-        // Pick the smallest of those, assuming we found any
+        // Pick the smallest of those big enough. If there is no one big enough, pick the
+        // largest of those not big enough.
         if (bigEnough.size() > 0) {
             return Collections.min(bigEnough, new CompareSizesByArea());
+        } else if (notBigEnough.size() > 0) {
+            return Collections.max(notBigEnough, new CompareSizesByArea());
         } else {
             Log.e(TAG, "Couldn't find any suitable preview size");
             return choices[0];
@@ -478,11 +506,57 @@ public class Camera2BasicFragment extends Fragment
                 mImageReader.setOnImageAvailableListener(
                         mOnImageAvailableListener, mBackgroundHandler);
 
+                // Find out if we need to swap dimension to get the preview size relative to sensor
+                // coordinate.
+                int displayRotation = activity.getWindowManager().getDefaultDisplay().getRotation();
+                int sensorOrientation =
+                        characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION);
+                boolean swappedDimensions = false;
+                switch (displayRotation) {
+                    case Surface.ROTATION_0:
+                    case Surface.ROTATION_180:
+                        if (sensorOrientation == 90 || sensorOrientation == 270) {
+                            swappedDimensions = true;
+                        }
+                        break;
+                    case Surface.ROTATION_90:
+                    case Surface.ROTATION_270:
+                        if (sensorOrientation == 0 || sensorOrientation == 180) {
+                            swappedDimensions = true;
+                        }
+                        break;
+                    default:
+                        Log.e(TAG, "Display rotation is invalid: " + displayRotation);
+                }
+
+                Point displaySize = new Point();
+                activity.getWindowManager().getDefaultDisplay().getSize(displaySize);
+                int rotatedPreviewWidth = width;
+                int rotatedPreviewHeight = height;
+                int maxPreviewWidth = displaySize.x;
+                int maxPreviewHeight = displaySize.y;
+
+                if (swappedDimensions) {
+                    rotatedPreviewWidth = height;
+                    rotatedPreviewHeight = width;
+                    maxPreviewWidth = displaySize.y;
+                    maxPreviewHeight = displaySize.x;
+                }
+
+                if (maxPreviewWidth > MAX_PREVIEW_WIDTH) {
+                    maxPreviewWidth = MAX_PREVIEW_WIDTH;
+                }
+
+                if (maxPreviewHeight > MAX_PREVIEW_HEIGHT) {
+                    maxPreviewHeight = MAX_PREVIEW_HEIGHT;
+                }
+
                 // Danger, W.R.! Attempting to use too large a preview size could  exceed the camera
                 // bus' bandwidth limitation, resulting in gorgeous previews but the storage of
                 // garbage capture data.
                 mPreviewSize = chooseOptimalSize(map.getOutputSizes(SurfaceTexture.class),
-                        width, height, largest);
+                        rotatedPreviewWidth, rotatedPreviewHeight, maxPreviewWidth,
+                        maxPreviewHeight, largest);
 
                 // We fit the aspect ratio of TextureView to the size of preview we picked.
                 int orientation = getResources().getConfiguration().orientation;

samples/browseable/Camera2Raw/src/com.example.android.camera2raw/Camera2RawFragment.java

@@ -27,6 +27,7 @@ import android.content.DialogInterface;
 import android.content.pm.PackageManager;
 import android.graphics.ImageFormat;
 import android.graphics.Matrix;
+import android.graphics.Point;
 import android.graphics.RectF;
 import android.graphics.SurfaceTexture;
 import android.hardware.SensorManager;
@@ -156,6 +157,16 @@ public class Camera2RawFragment extends Fragment
      */
     private static final double ASPECT_RATIO_TOLERANCE = 0.005;
 
+    /**
+     * Max preview width that is guaranteed by Camera2 API
+     */
+    private static final int MAX_PREVIEW_WIDTH = 1920;
+
+    /**
+     * Max preview height that is guaranteed by Camera2 API
+     */
+    private static final int MAX_PREVIEW_HEIGHT = 1080;
+
     /**
      * Tag for the {@link Log}.
      */
@@ -1033,6 +1044,8 @@ public class Camera2RawFragment extends Fragment
 
             // Find the rotation of the device relative to the native device orientation.
             int deviceRotation = activity.getWindowManager().getDefaultDisplay().getRotation();
+            Point displaySize = new Point();
+            activity.getWindowManager().getDefaultDisplay().getSize(displaySize);
 
             // Find the rotation of the device relative to the camera sensor's orientation.
             int totalRotation = sensorToDeviceRotation(mCharacteristics, deviceRotation);
@@ -1042,14 +1055,29 @@ public class Camera2RawFragment extends Fragment
             boolean swappedDimensions = totalRotation == 90 || totalRotation == 270;
             int rotatedViewWidth = viewWidth;
             int rotatedViewHeight = viewHeight;
+            int maxPreviewWidth = displaySize.x;
+            int maxPreviewHeight = displaySize.y;
+
             if (swappedDimensions) {
                 rotatedViewWidth = viewHeight;
                 rotatedViewHeight = viewWidth;
+                maxPreviewWidth = displaySize.y;
+                maxPreviewHeight = displaySize.x;
+            }
+
+            // Preview should not be larger than display size and 1080p.
+            if (maxPreviewWidth > MAX_PREVIEW_WIDTH) {
+                maxPreviewWidth = MAX_PREVIEW_WIDTH;
+            }
+
+            if (maxPreviewHeight > MAX_PREVIEW_HEIGHT) {
+                maxPreviewHeight = MAX_PREVIEW_HEIGHT;
             }
 
             // Find the best preview size for these view dimensions and configured JPEG size.
             Size previewSize = chooseOptimalSize(map.getOutputSizes(SurfaceTexture.class),
-                    rotatedViewWidth, rotatedViewHeight, largestJpeg);
+                    rotatedViewWidth, rotatedViewHeight, maxPreviewWidth, maxPreviewHeight,
+                    largestJpeg);
 
             if (swappedDimensions) {
                 mTextureView.setAspectRatio(
@@ -1580,31 +1608,47 @@ public class Camera2RawFragment extends Fragment
     }
 
     /**
-     * Given {@code choices} of {@code Size}s supported by a camera, chooses the smallest one whose
+     * Given {@code choices} of {@code Size}s supported by a camera, choose the smallest one that
-     * width and height are at least as large as the respective requested values, and whose aspect
+     * is at least as large as the respective texture view size, and that is at most as large as the
-     * ratio matches with the specified value.
+     * respective max size, and whose aspect ratio matches with the specified value. If such size
+     * doesn't exist, choose the largest one that is at most as large as the respective max size,
+     * and whose aspect ratio matches with the specified value.
      *
-     * @param choices     The list of sizes that the camera supports for the intended output class
+     * @param choices           The list of sizes that the camera supports for the intended output
-     * @param width       The minimum desired width
+     *                          class
-     * @param height      The minimum desired height
+     * @param textureViewWidth  The width of the texture view relative to sensor coordinate
-     * @param aspectRatio The aspect ratio
+     * @param textureViewHeight The height of the texture view relative to sensor coordinate
+     * @param maxWidth          The maximum width that can be chosen
+     * @param maxHeight         The maximum height that can be chosen
+     * @param aspectRatio       The aspect ratio
      * @return The optimal {@code Size}, or an arbitrary one if none were big enough
      */
-    private static Size chooseOptimalSize(Size[] choices, int width, int height, Size aspectRatio) {
+    private static Size chooseOptimalSize(Size[] choices, int textureViewWidth,
+            int textureViewHeight, int maxWidth, int maxHeight, Size aspectRatio) {
         // Collect the supported resolutions that are at least as big as the preview Surface
         List<Size> bigEnough = new ArrayList<>();
+        // Collect the supported resolutions that are smaller than the preview Surface
+        List<Size> notBigEnough = new ArrayList<>();
         int w = aspectRatio.getWidth();
         int h = aspectRatio.getHeight();
         for (Size option : choices) {
-            if (option.getHeight() == option.getWidth() * h / w &&
+            if (option.getWidth() <= maxWidth && option.getHeight() <= maxHeight &&
-                    option.getWidth() >= width && option.getHeight() >= height) {
+                    option.getHeight() == option.getWidth() * h / w) {
-                bigEnough.add(option);
+                if (option.getWidth() >= textureViewWidth &&
+                    option.getHeight() >= textureViewHeight) {
+                    bigEnough.add(option);
+                } else {
+                    notBigEnough.add(option);
+                }
             }
         }
 
-        // Pick the smallest of those, assuming we found any
+        // Pick the smallest of those big enough. If there is no one big enough, pick the
+        // largest of those not big enough.
         if (bigEnough.size() > 0) {
             return Collections.min(bigEnough, new CompareSizesByArea());
+        } else if (notBigEnough.size() > 0) {
+            return Collections.max(notBigEnough, new CompareSizesByArea());
         } else {
             Log.e(TAG, "Couldn't find any suitable preview size");
             return choices[0];

samples/browseable/DataLayer/Application/AndroidManifest.xml

@@ -18,7 +18,7 @@
         package="com.example.android.wearable.datalayer" >
 
     <uses-sdk android:minSdkVersion="18"
-              android:targetSdkVersion="22" />
+              android:targetSdkVersion="23" />
 
     <uses-feature android:name="android.hardware.camera" android:required="false" />
 

samples/browseable/DataLayer/Wearable/src/com.example.android.wearable.datalayer/MainActivity.java

@@ -23,6 +23,7 @@ import android.app.Fragment;
 import android.app.FragmentManager;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
+import android.os.AsyncTask;
 import android.os.Bundle;
 import android.os.Handler;
 import android.support.wearable.view.DotsPageIndicator;
@@ -41,6 +42,7 @@ import com.google.android.gms.common.ConnectionResult;
 import com.google.android.gms.common.api.GoogleApiClient;
 import com.google.android.gms.common.api.GoogleApiClient.ConnectionCallbacks;
 import com.google.android.gms.common.api.GoogleApiClient.OnConnectionFailedListener;
+import com.google.android.gms.common.api.PendingResult;
 import com.google.android.gms.common.api.ResultCallback;
 import com.google.android.gms.wearable.Asset;
 import com.google.android.gms.wearable.CapabilityApi;
@@ -85,7 +87,6 @@ public class MainActivity extends Activity implements ConnectionCallbacks,
     private static final String CAPABILITY_2_NAME = "capability_2";
 
     private GoogleApiClient mGoogleApiClient;
-    private Handler mHandler;
     private GridViewPager mPager;
     private DataFragment mDataFragment;
     private AssetFragment mAssetFragment;
@@ -93,7 +94,6 @@ public class MainActivity extends Activity implements ConnectionCallbacks,
     @Override
     public void onCreate(Bundle b) {
         super.onCreate(b);
-        mHandler = new Handler();
         setContentView(R.layout.main_activity);
         getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
         setupViews();
@@ -137,15 +137,6 @@ public class MainActivity extends Activity implements ConnectionCallbacks,
         Log.e(TAG, "onConnectionFailed(): Failed to connect, with result: " + result);
     }
 
-    private void generateEvent(final String title, final String text) {
-        runOnUiThread(new Runnable() {
-            @Override
-            public void run() {
-                mDataFragment.appendItem(title, text);
-            }
-        });
-    }
-
     @Override
     public void onDataChanged(DataEventBuffer dataEvents) {
         LOGD(TAG, "onDataChanged(): " + dataEvents);
@@ -155,29 +146,22 @@ public class MainActivity extends Activity implements ConnectionCallbacks,
                 String path = event.getDataItem().getUri().getPath();
                 if (DataLayerListenerService.IMAGE_PATH.equals(path)) {
                     DataMapItem dataMapItem = DataMapItem.fromDataItem(event.getDataItem());
-                    Asset photo = dataMapItem.getDataMap()
+                    Asset photoAsset = dataMapItem.getDataMap()
                             .getAsset(DataLayerListenerService.IMAGE_KEY);
-                    final Bitmap bitmap = loadBitmapFromAsset(mGoogleApiClient, photo);
+                    // Loads image on background thread.
-                    mHandler.post(new Runnable() {
+                    new LoadBitmapAsyncTask().execute(photoAsset);
-                        @Override
-                        public void run() {
-                            Log.d(TAG, "Setting background image on second page..");
-                            moveToPage(1);
-                            mAssetFragment.setBackgroundImage(bitmap);
-                        }
-                    });
 
                 } else if (DataLayerListenerService.COUNT_PATH.equals(path)) {
                     LOGD(TAG, "Data Changed for COUNT_PATH");
-                    generateEvent("DataItem Changed", event.getDataItem().toString());
+                    mDataFragment.appendItem("DataItem Changed", event.getDataItem().toString());
                 } else {
                     LOGD(TAG, "Unrecognized path: " + path);
                 }
 
             } else if (event.getType() == DataEvent.TYPE_DELETED) {
-                generateEvent("DataItem Deleted", event.getDataItem().toString());
+                mDataFragment.appendItem("DataItem Deleted", event.getDataItem().toString());
             } else {
-                generateEvent("Unknown data event type", "Type = " + event.getType());
+                mDataFragment.appendItem("Unknown data event type", "Type = " + event.getType());
             }
         }
     }
@@ -199,20 +183,27 @@ public class MainActivity extends Activity implements ConnectionCallbacks,
      * Find the connected nodes that provide at least one of the given capabilities
      */
     private void showNodes(final String... capabilityNames) {
-        Wearable.CapabilityApi.getAllCapabilities(mGoogleApiClient,
-                CapabilityApi.FILTER_REACHABLE).setResultCallback(
 
+        PendingResult<CapabilityApi.GetAllCapabilitiesResult> pendingCapabilityResult =
+                Wearable.CapabilityApi.getAllCapabilities(
+                        mGoogleApiClient,
+                        CapabilityApi.FILTER_REACHABLE);
+
+        pendingCapabilityResult.setResultCallback(
                 new ResultCallback<CapabilityApi.GetAllCapabilitiesResult>() {
                     @Override
                     public void onResult(
                             CapabilityApi.GetAllCapabilitiesResult getAllCapabilitiesResult) {
+
                         if (!getAllCapabilitiesResult.getStatus().isSuccess()) {
                             Log.e(TAG, "Failed to get capabilities");
                             return;
                         }
-                        Map<String, CapabilityInfo>
+
-                                capabilitiesMap = getAllCapabilitiesResult.getAllCapabilities();
+                        Map<String, CapabilityInfo> capabilitiesMap =
+                                getAllCapabilitiesResult.getAllCapabilities();
                         Set<Node> nodes = new HashSet<>();
+
                         if (capabilitiesMap.isEmpty()) {
                             showDiscoveredNodes(nodes);
                             return;
@@ -231,7 +222,7 @@ public class MainActivity extends Activity implements ConnectionCallbacks,
                         for (Node node : nodes) {
                             nodesList.add(node.getDisplayName());
                         }
-                        Log.d(TAG, "Connected Nodes: " + (nodesList.isEmpty()
+                        LOGD(TAG, "Connected Nodes: " + (nodesList.isEmpty()
                                 ? "No connected device was found for the given capabilities"
                                 : TextUtils.join(",", nodesList)));
                         String msg;
@@ -246,39 +237,20 @@ public class MainActivity extends Activity implements ConnectionCallbacks,
                 });
     }
 
-    /**
-     * Extracts {@link android.graphics.Bitmap} data from the
-     * {@link com.google.android.gms.wearable.Asset}
-     */
-    private Bitmap loadBitmapFromAsset(GoogleApiClient apiClient, Asset asset) {
-        if (asset == null) {
-            throw new IllegalArgumentException("Asset must be non-null");
-        }
-
-        InputStream assetInputStream = Wearable.DataApi.getFdForAsset(
-                apiClient, asset).await().getInputStream();
-
-        if (assetInputStream == null) {
-            Log.w(TAG, "Requested an unknown Asset.");
-            return null;
-        }
-        return BitmapFactory.decodeStream(assetInputStream);
-    }
-
     @Override
     public void onMessageReceived(MessageEvent event) {
         LOGD(TAG, "onMessageReceived: " + event);
-        generateEvent("Message", event.toString());
+        mDataFragment.appendItem("Message", event.toString());
     }
 
     @Override
     public void onPeerConnected(Node node) {
-        generateEvent("Node Connected", node.getId());
+        mDataFragment.appendItem("Node Connected", node.getId());
     }
 
     @Override
     public void onPeerDisconnected(Node node) {
-        generateEvent("Node Disconnected", node.getId());
+        mDataFragment.appendItem("Node Disconnected", node.getId());
     }
 
     private void setupViews() {
@@ -330,4 +302,43 @@ public class MainActivity extends Activity implements ConnectionCallbacks,
         }
 
     }
+
+    /*
+     * Extracts {@link android.graphics.Bitmap} data from the
+     * {@link com.google.android.gms.wearable.Asset}
+     */
+    private class LoadBitmapAsyncTask extends AsyncTask<Asset, Void, Bitmap> {
+
+        @Override
+        protected Bitmap doInBackground(Asset... params) {
+
+            if(params.length > 0) {
+
+                Asset asset = params[0];
+
+                InputStream assetInputStream = Wearable.DataApi.getFdForAsset(
+                        mGoogleApiClient, asset).await().getInputStream();
+
+                if (assetInputStream == null) {
+                    Log.w(TAG, "Requested an unknown Asset.");
+                    return null;
+                }
+                return BitmapFactory.decodeStream(assetInputStream);
+
+            } else {
+                Log.e(TAG, "Asset must be non-null");
+                return null;
+            }
+        }
+
+        @Override
+        protected void onPostExecute(Bitmap bitmap) {
+
+            if(bitmap != null) {
+                LOGD(TAG, "Setting background image on second page..");
+                moveToPage(1);
+                mAssetFragment.setBackgroundImage(bitmap);
+            }
+        }
+    }
 }

samples/browseable/DelayedConfirmation/Application/AndroidManifest.xml

@@ -18,7 +18,7 @@
         package="com.example.android.wearable.delayedconfirmation" >
 
     <uses-sdk android:minSdkVersion="18"
-        android:targetSdkVersion="22" />
+        android:targetSdkVersion="23" />
 
     <application
             android:allowBackup="true"

samples/browseable/ElizaChat/AndroidManifest.xml

@@ -18,7 +18,7 @@
     package="com.example.android.wearable.elizachat" >
 
     <uses-sdk android:minSdkVersion="18"
-              android:targetSdkVersion="21" />
+              android:targetSdkVersion="23" />
 
     <application
         android:allowBackup="true"

samples/browseable/ElizaChat/src/com.example.android.wearable.elizachat/ResponderService.java

@@ -96,7 +96,7 @@ public class ResponderService extends Service {
                 .setContentText(mLastResponse)
                 .setLargeIcon(BitmapFactory.decodeResource(getResources(), R.drawable.bg_eliza))
                 .setSmallIcon(R.drawable.bg_eliza)
-                .setPriority(NotificationCompat.PRIORITY_MIN);
+                .setPriority(NotificationCompat.PRIORITY_DEFAULT);
 
         Intent intent = new Intent(ACTION_RESPONSE);
         PendingIntent pendingIntent = PendingIntent.getService(this, 0, intent,

samples/browseable/FindMyPhone/Application/AndroidManifest.xml

@@ -18,7 +18,7 @@
           package="com.example.android.wearable.findphone">
 
     <uses-sdk android:minSdkVersion="18"
-              android:targetSdkVersion="22" />
+              android:targetSdkVersion="23" />
 
     <uses-permission android:name="android.permission.VIBRATE" />
     <application

samples/browseable/FingerprintDialog/_index.jd

@@ -1,5 +1,5 @@
 
-page.tags="Fingerprint Dialog Sample"
+page.tags="FingerprintDialog"
 sample.group=Security
 @jd:body
 

samples/browseable/FingerprintDialog/res/values/base-strings.xml

@@ -16,7 +16,7 @@
 -->
 
 <resources>
-    <string name="app_name">Fingerprint Dialog Sample</string>
+    <string name="app_name">FingerprintDialog</string>
     <string name="intro_message">
         <![CDATA[
         

samples/browseable/FingerprintDialog/src/com.example.android.fingerprintdialog/MainActivity.java

@@ -16,12 +16,10 @@
 
 package com.example.android.fingerprintdialog;
 
-import android.Manifest;
 import android.app.Activity;
 import android.app.KeyguardManager;
 import android.content.Intent;
 import android.content.SharedPreferences;
-import android.content.pm.PackageManager;
 import android.hardware.fingerprint.FingerprintManager;
 import android.os.Bundle;
 import android.security.keystore.KeyGenParameterSpec;
@@ -64,8 +62,6 @@ public class MainActivity extends Activity {
     /** Alias for our key in the Android Key Store */
     private static final String KEY_NAME = "my_key";
 
-    private static final int FINGERPRINT_PERMISSION_REQUEST_CODE = 0;
-
     @Inject KeyguardManager mKeyguardManager;
     @Inject FingerprintManager mFingerprintManager;
     @Inject FingerprintAuthenticationDialogFragment mFragment;
@@ -79,72 +75,65 @@ public class MainActivity extends Activity {
         super.onCreate(savedInstanceState);
         ((InjectedApplication) getApplication()).inject(this);
 
-        requestPermissions(new String[]{Manifest.permission.USE_FINGERPRINT},
+        setContentView(R.layout.activity_main);
-                FINGERPRINT_PERMISSION_REQUEST_CODE);
+        Button purchaseButton = (Button) findViewById(R.id.purchase_button);
-    }
+        if (!mKeyguardManager.isKeyguardSecure()) {
-
+            // Show a message that the user hasn't set up a fingerprint or lock screen.
-    @Override
+            Toast.makeText(this,
-    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] state) {
+                    "Secure lock screen hasn't set up.\n"
-        if (requestCode == FINGERPRINT_PERMISSION_REQUEST_CODE
+                            + "Go to 'Settings -> Security -> Fingerprint' to set up a fingerprint",
-                && state[0] == PackageManager.PERMISSION_GRANTED) {
+                    Toast.LENGTH_LONG).show();
-            setContentView(R.layout.activity_main);
+            purchaseButton.setEnabled(false);
-            Button purchaseButton = (Button) findViewById(R.id.purchase_button);
+            return;
-            if (!mKeyguardManager.isKeyguardSecure()) {
-                // Show a message that the user hasn't set up a fingerprint or lock screen.
-                Toast.makeText(this,
-                        "Secure lock screen hasn't set up.\n"
-                                + "Go to 'Settings -> Security -> Fingerprint' to set up a fingerprint",
-                        Toast.LENGTH_LONG).show();
-                purchaseButton.setEnabled(false);
-                return;
-            }
-            if (!mFingerprintManager.hasEnrolledFingerprints()) {
-                purchaseButton.setEnabled(false);
-                // This happens when no fingerprints are registered.
-                Toast.makeText(this,
-                        "Go to 'Settings -> Security -> Fingerprint' and register at least one fingerprint",
-                        Toast.LENGTH_LONG).show();
-                return;
-            }
-            createKey();
-            purchaseButton.setEnabled(true);
-            purchaseButton.setOnClickListener(new View.OnClickListener() {
-                @Override
-                public void onClick(View v) {
-                    findViewById(R.id.confirmation_message).setVisibility(View.GONE);
-                    findViewById(R.id.encrypted_message).setVisibility(View.GONE);
-
-                    // Set up the crypto object for later. The object will be authenticated by use
-                    // of the fingerprint.
-                    if (initCipher()) {
-
-                        // Show the fingerprint dialog. The user has the option to use the fingerprint with
-                        // crypto, or you can fall back to using a server-side verified password.
-                        mFragment.setCryptoObject(new FingerprintManager.CryptoObject(mCipher));
-                        boolean useFingerprintPreference = mSharedPreferences
-                                .getBoolean(getString(R.string.use_fingerprint_to_authenticate_key),
-                                        true);
-                        if (useFingerprintPreference) {
-                            mFragment.setStage(
-                                    FingerprintAuthenticationDialogFragment.Stage.FINGERPRINT);
-                        } else {
-                            mFragment.setStage(
-                                    FingerprintAuthenticationDialogFragment.Stage.PASSWORD);
-                        }
-                        mFragment.show(getFragmentManager(), DIALOG_FRAGMENT_TAG);
-                    } else {
-                        // This happens if the lock screen has been disabled or or a fingerprint got
-                        // enrolled. Thus show the dialog to authenticate with their password first
-                        // and ask the user if they want to authenticate with fingerprints in the
-                        // future
-                        mFragment.setCryptoObject(new FingerprintManager.CryptoObject(mCipher));
-                        mFragment.setStage(
-                                FingerprintAuthenticationDialogFragment.Stage.NEW_FINGERPRINT_ENROLLED);
-                        mFragment.show(getFragmentManager(), DIALOG_FRAGMENT_TAG);
-                    }
-                }
-            });
         }
+
+        //noinspection ResourceType
+        if (!mFingerprintManager.hasEnrolledFingerprints()) {
+            purchaseButton.setEnabled(false);
+            // This happens when no fingerprints are registered.
+            Toast.makeText(this,
+                    "Go to 'Settings -> Security -> Fingerprint' and register at least one fingerprint",
+                    Toast.LENGTH_LONG).show();
+            return;
+        }
+        createKey();
+        purchaseButton.setEnabled(true);
+        purchaseButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                findViewById(R.id.confirmation_message).setVisibility(View.GONE);
+                findViewById(R.id.encrypted_message).setVisibility(View.GONE);
+
+                // Set up the crypto object for later. The object will be authenticated by use
+                // of the fingerprint.
+                if (initCipher()) {
+
+                    // Show the fingerprint dialog. The user has the option to use the fingerprint with
+                    // crypto, or you can fall back to using a server-side verified password.
+                    mFragment.setCryptoObject(new FingerprintManager.CryptoObject(mCipher));
+                    boolean useFingerprintPreference = mSharedPreferences
+                            .getBoolean(getString(R.string.use_fingerprint_to_authenticate_key),
+                                    true);
+                    if (useFingerprintPreference) {
+                        mFragment.setStage(
+                                FingerprintAuthenticationDialogFragment.Stage.FINGERPRINT);
+                    } else {
+                        mFragment.setStage(
+                                FingerprintAuthenticationDialogFragment.Stage.PASSWORD);
+                    }
+                    mFragment.show(getFragmentManager(), DIALOG_FRAGMENT_TAG);
+                } else {
+                    // This happens if the lock screen has been disabled or or a fingerprint got
+                    // enrolled. Thus show the dialog to authenticate with their password first
+                    // and ask the user if they want to authenticate with fingerprints in the
+                    // future
+                    mFragment.setCryptoObject(new FingerprintManager.CryptoObject(mCipher));
+                    mFragment.setStage(
+                            FingerprintAuthenticationDialogFragment.Stage.NEW_FINGERPRINT_ENROLLED);
+                    mFragment.show(getFragmentManager(), DIALOG_FRAGMENT_TAG);
+                }
+            }
+        });
     }
 
     /**

samples/browseable/Flashlight/AndroidManifest.xml

@@ -18,7 +18,7 @@
           package="com.example.android.wearable.flashlight" >
 
     <uses-sdk android:minSdkVersion="20"
-              android:targetSdkVersion="21" />
+              android:targetSdkVersion="22" />
 
     <uses-feature android:name="android.hardware.type.watch" />
 

samples/browseable/Flashlight/_index.jd

@@ -6,6 +6,6 @@ sample.group=Wearable
 <p>
             
             Wearable activity that uses your wearable screen as a flashlight. There is also
-            a party-mode option, if you want to make things interesting.
+            a party-mode option (swipe left), if you want to make things interesting.
             
         </p>

samples/browseable/Geofencing/Application/AndroidManifest.xml

@@ -18,7 +18,7 @@
           package="com.example.android.wearable.geofencing">
 
     <uses-sdk android:minSdkVersion="18"
-              android:targetSdkVersion="21" />
+              android:targetSdkVersion="22" />
 
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
 

samples/browseable/Geofencing/Wearable/AndroidManifest.xml

@@ -18,7 +18,7 @@
         package="com.example.android.wearable.geofencing" >
 
     <uses-sdk android:minSdkVersion="20"
-              android:targetSdkVersion="21" />
+              android:targetSdkVersion="22" />
 
     <uses-feature android:name="android.hardware.type.watch" />
 

samples/browseable/GridViewPager/AndroidManifest.xml

@@ -18,7 +18,7 @@
     package="com.example.android.wearable.gridviewpager" >
 
     <uses-sdk android:minSdkVersion="20"
-              android:targetSdkVersion="21" />
+              android:targetSdkVersion="22" />
 
     <uses-feature android:name="android.hardware.type.watch" />
 

samples/browseable/JumpingJack/AndroidManifest.xml

@@ -18,7 +18,7 @@
           package="com.example.android.wearable.jumpingjack">
 
    <uses-sdk android:minSdkVersion="20"
-             android:targetSdkVersion="21" />
+             android:targetSdkVersion="22" />
 
     <uses-feature android:name="android.hardware.type.watch" />
 

samples/browseable/Notifications/Application/AndroidManifest.xml

@@ -18,7 +18,7 @@
         package="com.example.android.support.wearable.notifications" >
 
     <uses-sdk android:minSdkVersion="18"
-              android:targetSdkVersion="21" />
+              android:targetSdkVersion="23" />
 
     <uses-permission android:name="android.permission.VIBRATE" />
 

samples/browseable/Notifications/Wearable/AndroidManifest.xml

@@ -18,7 +18,7 @@
         package="com.example.android.support.wearable.notifications" >
 
     <uses-sdk android:minSdkVersion="20"
-        android:targetSdkVersion="21" />
+        android:targetSdkVersion="22" />
 
     <uses-feature android:name="android.hardware.type.watch" />
 

samples/browseable/Quiz/Application/AndroidManifest.xml

@@ -18,7 +18,7 @@
         package="com.example.android.wearable.quiz" >
 
     <uses-sdk android:minSdkVersion="18"
-              android:targetSdkVersion="22" />
+              android:targetSdkVersion="23" />
 
     <application
             android:allowBackup="true"

samples/browseable/RecipeAssistant/Application/AndroidManifest.xml

@@ -18,7 +18,7 @@
     package="com.example.android.wearable.recipeassistant" >
 
     <uses-sdk android:minSdkVersion="18"
-              android:targetSdkVersion="21" />
+              android:targetSdkVersion="23" />
 
     <application
         android:allowBackup="true"

samples/browseable/SkeletonWearableApp/AndroidManifest.xml

@@ -18,7 +18,7 @@
         package="com.example.android.google.wearable.app" >
 
     <uses-sdk android:minSdkVersion="20"
-              android:targetSdkVersion="21" />
+              android:targetSdkVersion="22" />
 
     <uses-feature android:name="android.hardware.type.watch" />
 

samples/browseable/SpeedTracker/Application/AndroidManifest.xml

@@ -2,25 +2,35 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.example.android.wearable.speedtracker" >
 
+
+    <uses-sdk
+        android:minSdkVersion="18"
+        android:targetSdkVersion="23" />
+
+    <!-- BEGIN_INCLUDE(manifest) -->
+
+    <!-- Note that all required permissions are declared here in the Android manifest.
+         On Android M and above, use of permissions not in the normal permission group are
+         requested at run time. -->
     <uses-permission android:name="android.permission.INTERNET"/>
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
-    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
-    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
+
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"
+        android:maxSdkVersion="18"/>
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
+    <!-- END_INCLUDE(manifest) -->
 
     <uses-feature android:name="android.hardware.location.gps" android:required="true" />
     <uses-feature
         android:glEsVersion="0x00020000" android:required="true"/>
-    <uses-sdk
-        android:minSdkVersion="18"
-        android:targetSdkVersion="21" />
 
     <application
         android:name=".PhoneApplication"
         android:allowBackup="true"
         android:icon="@drawable/ic_launcher"
         android:label="@string/app_name"
-        android:theme="@style/AppTheme" >
+        android:theme="@style/Theme.AppCompat.Light" >
         <meta-data
             android:name="com.google.android.maps.v2.API_KEY"
             android:value="@string/map_v2_api_key"/>

samples/browseable/SpeedTracker/Application/res/layout/main_activity.xml

@@ -21,7 +21,8 @@
     <RelativeLayout
         android:id="@+id/top_container"
         android:layout_width="fill_parent"
-        android:layout_height="wrap_content">
+        android:layout_height="wrap_content"
+        android:layout_marginTop="10dp">
         <Button
             android:id="@+id/date_picker"
             android:layout_width="wrap_content"

samples/browseable/SpeedTracker/Application/src/com.example.android.wearable.speedtracker/PhoneMainActivity.java

@@ -23,10 +23,10 @@ import com.google.android.gms.maps.model.LatLng;
 import com.google.android.gms.maps.model.LatLngBounds;
 import com.google.android.gms.maps.model.PolylineOptions;
 
-import android.app.Activity;
 import android.app.DatePickerDialog;
 import android.os.AsyncTask;
 import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
 import android.text.format.DateUtils;
 import android.util.Log;
 import android.view.View;
@@ -45,7 +45,8 @@ import java.util.List;
  * a map. This data is then saved into an internal database and the corresponding data items are
  * deleted.
  */
-public class PhoneMainActivity extends Activity implements DatePickerDialog.OnDateSetListener {
+public class PhoneMainActivity extends AppCompatActivity implements
+        DatePickerDialog.OnDateSetListener {
 
     private static final String TAG = "PhoneMainActivity";
     private static final int BOUNDING_BOX_PADDING_PX = 50;

samples/browseable/SpeedTracker/Wearable/AndroidManifest.xml

@@ -19,18 +19,22 @@
 
     <uses-feature android:name="android.hardware.type.watch"/>
     <uses-feature android:name="android.hardware.location.gps" android:required="true" />
-    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>\
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
 
     <uses-sdk
         android:minSdkVersion="20"
-        android:targetSdkVersion="21" />
+        android:targetSdkVersion="23" />
 
     <application
         android:allowBackup="true"
         android:icon="@drawable/ic_launcher"
         android:label="@string/app_name"
         android:theme="@android:style/Theme.DeviceDefault">
+
+        <!--If you want your app to run on pre-22, then set required to false -->
+        <uses-library android:name="com.google.android.wearable" android:required="false" />
+
         <meta-data android:name="com.google.android.gms.version"
                    android:value="@integer/google_play_services_version"/>
         <activity
@@ -38,7 +42,6 @@
             android:label="@string/app_name">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
-
                 <category android:name="android.intent.category.LAUNCHER"/>
             </intent-filter>
         </activity>
@@ -48,12 +51,6 @@
                 <action android:name="android.intent.action.MAIN"/>
             </intent-filter>
         </activity>
-        <activity
-            android:name=".ui.LocationSettingActivity">
-            <intent-filter>
-                <action android:name="android.intent.action.MAIN"/>
-            </intent-filter>
-        </activity>
     </application>
 
 </manifest>

samples/browseable/SpeedTracker/Wearable/res/layout/main_activity.xml

@@ -29,11 +29,13 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_centerInParent="true"
+        android:paddingLeft="16dp"
         android:fontFamily="sans-serif-light"
+        android:textAlignment="center"
         android:textSize="17sp"
         android:textStyle="italic"
-        android:id="@+id/acquiring_gps"
+        android:id="@+id/gps_issue_text"
-        android:text="@string/acquiring_gps"/>
+        android:text=""/>
 
     <TextView
         android:layout_width="wrap_content"
@@ -84,18 +86,20 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:src="@drawable/ic_gps_not_saving_grey600_96dp"
-        android:id="@+id/saving"
+        android:id="@+id/gps_permission"
+        android:onClick="onGpsPermissionClick"
         android:layout_alignParentBottom="true"
         android:layout_alignParentLeft="true"
         android:layout_marginBottom="20dp"
-        android:layout_marginLeft="60dp" />
+        android:layout_marginLeft="50dp" />
 
     <ImageButton
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:id="@+id/settings"
+        android:id="@+id/speed_limit_setting"
+        android:onClick="onSpeedLimitClick"
         android:background="@drawable/settings"
         android:layout_alignParentRight="true"
-        android:layout_alignBottom="@+id/saving"
+        android:layout_alignBottom="@+id/gps_permission"
-        android:layout_marginRight="60dp"/>
+        android:layout_marginRight="50dp"/>
 </RelativeLayout>

samples/browseable/SpeedTracker/Wearable/res/layout/saving_activity.xml

@@ -1,63 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2014 The Android Open Source Project
-
-     Licensed under the Apache License, Version 2.0 (the "License");
-     you may not use this file except in compliance with the License.
-     You may obtain a copy of the License at
-
-          http://www.apache.org/licenses/LICENSE-2.0
-
-     Unless required by applicable law or agreed to in writing, software
-     distributed under the License is distributed on an "AS IS" BASIS,
-     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-     See the License for the specific language governing permissions and
-     limitations under the License.
--->
-
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:layout_width="match_parent" android:layout_height="match_parent">
-    <View
-        android:id="@+id/center"
-        android:layout_width="0dp"
-        android:layout_height="0dp"
-        android:layout_centerInParent="true"/>
-    <TextView
-        android:id="@+id/textView"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_centerHorizontal="true"
-        android:layout_above="@id/center"
-        android:layout_marginBottom="18dp"
-        android:fontFamily="sans-serif-light"
-        android:textSize="18sp"
-        android:text="@string/start_saving_gps"/>
-    <android.support.wearable.view.CircledImageView
-        android:id="@+id/cancelBtn"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="center"
-        android:layout_below="@id/center"
-        android:layout_toLeftOf="@id/center"
-        android:layout_marginEnd="10dp"
-        android:src="@drawable/ic_cancel_80"
-        app:circle_color="@color/grey"
-        android:onClick="onClick"
-        app:circle_padding="@dimen/circle_padding"
-        app:circle_radius="@dimen/circle_radius"
-        app:circle_radius_pressed="@dimen/circle_radius_pressed" />
-    <android.support.wearable.view.CircledImageView
-        android:id="@+id/submitBtn"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="center"
-        android:layout_below="@id/center"
-        android:layout_toRightOf="@id/center"
-        android:layout_marginStart="10dp"
-        android:src="@drawable/ic_confirmation_80"
-        app:circle_color="@color/blue"
-        android:onClick="onClick"
-        app:circle_padding="@dimen/circle_padding"
-        app:circle_radius="@dimen/circle_radius"
-        app:circle_radius_pressed="@dimen/circle_radius_pressed" />
-</RelativeLayout>

samples/browseable/SpeedTracker/Wearable/res/values/strings.xml

@@ -25,11 +25,16 @@
     <string name="speed_limit">Limit: %1$d mph</string>
     <string name="acquiring_gps">Acquiring GPS Fix ...</string>
     <string name="speed_for_list">%1$d mph</string>
-    <string name="start_saving_gps">Start Recording GPS?</string>
+
-    <string name="stop_saving_gps">Stop Recording GPS?</string>
+    <string name="enable_disable_gps_label">Enable Location Permission?</string>
+
     <string name="mph">mph</string>
     <string name="speed_limit_header">Speed Limit</string>
-    <string name="gps_not_available">GPS not available.</string>
+    <string name="gps_not_available">No GPS on device. Will use phone GPS when available.</string>
     <string name="ok">OK</string>
     <string name="speed_format">%.0f</string>
+
+    <string name="permission_rationale">App requires location permission to function, tap GPS icon.</string>
+
+
 </resources>

samples/browseable/SpeedTracker/Wearable/src/com.example.android.wearable.speedtracker/SpeedPickerActivity.java

@@ -17,9 +17,8 @@
 package com.example.android.wearable.speedtracker;
 
 import android.app.Activity;
-import android.content.SharedPreferences;
+import android.content.Intent;
 import android.os.Bundle;
-import android.preference.PreferenceManager;
 import android.support.wearable.view.WearableListView;
 import android.widget.TextView;
 
@@ -31,6 +30,9 @@ import com.example.android.wearable.speedtracker.ui.SpeedPickerListAdapter;
  */
 public class SpeedPickerActivity extends Activity implements WearableListView.ClickListener {
 
+    public static final String EXTRA_NEW_SPEED_LIMIT =
+            "com.example.android.wearable.speedtracker.extra.NEW_SPEED_LIMIT";
+
     /* Speeds, in mph, that will be shown on the list */
     private int[] speeds = {25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75};
 
@@ -75,9 +77,13 @@ public class SpeedPickerActivity extends Activity implements WearableListView.Cl
 
     @Override
     public void onClick(WearableListView.ViewHolder viewHolder) {
-        SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(this);
+
-        pref.edit().putInt(WearableMainActivity.PREFS_SPEED_LIMIT_KEY,
+        int newSpeedLimit = speeds[viewHolder.getPosition()];
-                speeds[viewHolder.getPosition()]).apply();
+
+        Intent resultIntent = new Intent(Intent.ACTION_PICK);
+        resultIntent.putExtra(EXTRA_NEW_SPEED_LIMIT, newSpeedLimit);
+        setResult(RESULT_OK, resultIntent);
+
         finish();
     }
 

samples/browseable/SpeedTracker/Wearable/src/com.example.android.wearable.speedtracker/WearableMainActivity.java

@@ -28,7 +28,7 @@ import com.google.android.gms.wearable.PutDataMapRequest;
 import com.google.android.gms.wearable.PutDataRequest;
 import com.google.android.gms.wearable.Wearable;
 
-import android.app.Activity;
+import android.Manifest;
 import android.app.AlertDialog;
 import android.content.DialogInterface;
 import android.content.Intent;
@@ -38,18 +38,19 @@ import android.location.Location;
 import android.os.Bundle;
 import android.os.Handler;
 import android.preference.PreferenceManager;
+import android.support.annotation.NonNull;
+import android.support.v4.app.ActivityCompat;
+import android.support.wearable.activity.WearableActivity;
 import android.util.Log;
 import android.view.View;
-import android.view.WindowManager;
-import android.widget.ImageButton;
 import android.widget.ImageView;
 import android.widget.TextView;
 
 import com.example.android.wearable.speedtracker.common.Constants;
 import com.example.android.wearable.speedtracker.common.LocationEntry;
-import com.example.android.wearable.speedtracker.ui.LocationSettingActivity;
 
 import java.util.Calendar;
+import java.util.concurrent.TimeUnit;
 
 /**
  * The main activity for the wearable app. User can pick a speed limit, and after this activity
@@ -58,33 +59,54 @@ import java.util.Calendar;
  * and if the user exceeds the speed limit, it will turn red. In order to show the user that GPS
  * location data is coming in, a small green dot keeps on blinking while GPS data is available.
  */
-public class WearableMainActivity extends Activity implements GoogleApiClient.ConnectionCallbacks,
+public class WearableMainActivity extends WearableActivity implements
-        GoogleApiClient.OnConnectionFailedListener, LocationListener {
+        GoogleApiClient.ConnectionCallbacks,
+        GoogleApiClient.OnConnectionFailedListener,
+        ActivityCompat.OnRequestPermissionsResultCallback,
+        LocationListener {
 
     private static final String TAG = "WearableActivity";
 
-    private static final long UPDATE_INTERVAL_MS = 5 * 1000;
+    private static final long UPDATE_INTERVAL_MS = TimeUnit.SECONDS.toMillis(5);
-    private static final long FASTEST_INTERVAL_MS = 5 * 1000;
+    private static final long FASTEST_INTERVAL_MS = TimeUnit.SECONDS.toMillis(5);
 
-    public static final float MPH_IN_METERS_PER_SECOND = 2.23694f;
+    private static final float MPH_IN_METERS_PER_SECOND = 2.23694f;
+
+    private static final int SPEED_LIMIT_DEFAULT_MPH = 45;
 
-    public static final String PREFS_SPEED_LIMIT_KEY = "speed_limit";
-    public static final int SPEED_LIMIT_DEFAULT_MPH = 45;
     private static final long INDICATOR_DOT_FADE_AWAY_MS = 500L;
 
-    private GoogleApiClient mGoogleApiClient;
+    // Request codes for changing speed limit and location permissions.
-    private TextView mSpeedLimitText;
+    private static final int REQUEST_PICK_SPEED_LIMIT = 0;
-    private TextView mCurrentSpeedText;
+
-    private ImageView mSaveImageView;
+    // Id to identify Location permission request.
-    private TextView mAcquiringGps;
+    private static final int REQUEST_GPS_PERMISSION = 1;
-    private TextView mCurrentSpeedMphText;
+
+    // Shared Preferences for saving speed limit and location permission between app launches.
+    private static final String PREFS_SPEED_LIMIT_KEY = "SpeedLimit";
 
-    private int mCurrentSpeedLimit;
-    private float mCurrentSpeed;
-    private View mDot;
-    private Handler mHandler = new Handler();
     private Calendar mCalendar;
-    private boolean mSaveGpsLocation;
+
+    private TextView mSpeedLimitTextView;
+    private TextView mSpeedTextView;
+    private ImageView mGpsPermissionImageView;
+    private TextView mCurrentSpeedMphTextView;
+    private TextView mGpsIssueTextView;
+    private View mBlinkingGpsStatusDotView;
+
+    private String mGpsPermissionNeededMessage;
+    private String mAcquiringGpsMessage;
+
+    private int mSpeedLimit;
+    private float mSpeed;
+
+    private boolean mGpsPermissionApproved;
+
+    private boolean mWaitingForGpsSignal;
+
+    private GoogleApiClient mGoogleApiClient;
+
+    private Handler mHandler = new Handler();
 
     private enum SpeedState {
         BELOW(R.color.speed_below), CLOSE(R.color.speed_close), ABOVE(R.color.speed_above);
@@ -104,20 +126,53 @@ public class WearableMainActivity extends Activity implements GoogleApiClient.Co
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
+        Log.d(TAG, "onCreate()");
+
+
         setContentView(R.layout.main_activity);
+
+        /*
+         * Enables Always-on, so our app doesn't shut down when the watch goes into ambient mode.
+         * Best practice is to override onEnterAmbient(), onUpdateAmbient(), and onExitAmbient() to
+         * optimize the display for ambient mode. However, for brevity, we aren't doing that here
+         * to focus on learning location and permissions. For more information on best practices
+         * in ambient mode, check this page:
+         * https://developer.android.com/training/wearables/apps/always-on.html
+         */
+        setAmbientEnabled();
+
+        mCalendar = Calendar.getInstance();
+
+        // Enables app to handle 23+ (M+) style permissions.
+        mGpsPermissionApproved =
+            ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
+                    == PackageManager.PERMISSION_GRANTED;
+
+        mGpsPermissionNeededMessage = getString(R.string.permission_rationale);
+        mAcquiringGpsMessage = getString(R.string.acquiring_gps);
+
+
+        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
+        mSpeedLimit = sharedPreferences.getInt(PREFS_SPEED_LIMIT_KEY, SPEED_LIMIT_DEFAULT_MPH);
+
+        mSpeed = 0;
+
+        mWaitingForGpsSignal = true;
+
+
+        /*
+         * If this hardware doesn't support GPS, we warn the user. Note that when such device is
+         * connected to a phone with GPS capabilities, the framework automatically routes the
+         * location requests from the phone. However, if the phone becomes disconnected and the
+         * wearable doesn't support GPS, no location is recorded until the phone is reconnected.
+         */
         if (!hasGps()) {
-            // If this hardware doesn't support GPS, we prefer to exit.
+            Log.w(TAG, "This hardware doesn't have GPS, so we warn user.");
-            // Note that when such device is connected to a phone with GPS capabilities, the
-            // framework automatically routes the location requests to the phone. For this
-            // application, this would not be desirable so we exit the app but for some other
-            // applications, that might be a valid scenario.
-            Log.w(TAG, "This hardware doesn't have GPS, so we exit");
             new AlertDialog.Builder(this)
                     .setMessage(getString(R.string.gps_not_available))
                     .setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
                         @Override
                         public void onClick(DialogInterface dialog, int id) {
-                            finish();
                             dialog.cancel();
                         }
                     })
@@ -125,7 +180,6 @@ public class WearableMainActivity extends Activity implements GoogleApiClient.Co
                         @Override
                         public void onDismiss(DialogInterface dialog) {
                             dialog.cancel();
-                            finish();
                         }
                     })
                     .setCancelable(false)
@@ -133,164 +187,216 @@ public class WearableMainActivity extends Activity implements GoogleApiClient.Co
                     .show();
         }
 
+
         setupViews();
-        updateSpeedVisibility(false);
+
-        setSpeedLimit();
         mGoogleApiClient = new GoogleApiClient.Builder(this)
                 .addApi(LocationServices.API)
                 .addApi(Wearable.API)
                 .addConnectionCallbacks(this)
                 .addOnConnectionFailedListener(this)
                 .build();
-        mGoogleApiClient.connect();
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+        if ((mGoogleApiClient != null) && (mGoogleApiClient.isConnected()) &&
+                (mGoogleApiClient.isConnecting())) {
+            LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, this);
+            mGoogleApiClient.disconnect();
+        }
+
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        if (mGoogleApiClient != null) {
+            mGoogleApiClient.connect();
+        }
     }
 
     private void setupViews() {
-        mSpeedLimitText = (TextView) findViewById(R.id.max_speed_text);
+        mSpeedLimitTextView = (TextView) findViewById(R.id.max_speed_text);
-        mCurrentSpeedText = (TextView) findViewById(R.id.current_speed_text);
+        mSpeedTextView = (TextView) findViewById(R.id.current_speed_text);
-        mSaveImageView = (ImageView) findViewById(R.id.saving);
+        mCurrentSpeedMphTextView = (TextView) findViewById(R.id.current_speed_mph);
-        ImageButton settingButton = (ImageButton) findViewById(R.id.settings);
-        mAcquiringGps = (TextView) findViewById(R.id.acquiring_gps);
-        mCurrentSpeedMphText = (TextView) findViewById(R.id.current_speed_mph);
-        mDot = findViewById(R.id.dot);
 
-        settingButton.setOnClickListener(new View.OnClickListener() {
+        mGpsPermissionImageView = (ImageView) findViewById(R.id.gps_permission);
-            @Override
+        mGpsIssueTextView = (TextView) findViewById(R.id.gps_issue_text);
-            public void onClick(View v) {
+        mBlinkingGpsStatusDotView = findViewById(R.id.dot);
-                Intent speedIntent = new Intent(WearableMainActivity.this,
-                        SpeedPickerActivity.class);
-                startActivity(speedIntent);
-            }
-        });
 
-        mSaveImageView.setOnClickListener(new View.OnClickListener() {
+        updateActivityViewsBasedOnLocationPermissions();
-            @Override
-            public void onClick(View v) {
-                Intent savingIntent = new Intent(WearableMainActivity.this,
-                        LocationSettingActivity.class);
-                startActivity(savingIntent);
-            }
-        });
     }
 
-    private void setSpeedLimit(int speedLimit) {
+    public void onSpeedLimitClick(View view) {
-        mSpeedLimitText.setText(getString(R.string.speed_limit, speedLimit));
+        Intent speedIntent = new Intent(WearableMainActivity.this,
+                SpeedPickerActivity.class);
+        startActivityForResult(speedIntent, REQUEST_PICK_SPEED_LIMIT);
     }
 
-    private void setSpeedLimit() {
+    public void onGpsPermissionClick(View view) {
-        SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(this);
-        mCurrentSpeedLimit = pref.getInt(PREFS_SPEED_LIMIT_KEY, SPEED_LIMIT_DEFAULT_MPH);
-        setSpeedLimit(mCurrentSpeedLimit);
-    }
 
-    private void setCurrentSpeed(float speed) {
+        if (!mGpsPermissionApproved) {
-        mCurrentSpeed = speed;
+
-        mCurrentSpeedText.setText(String.format(getString(R.string.speed_format), speed));
+            Log.i(TAG, "Location permission has NOT been granted. Requesting permission.");
-        adjustColor();
+
+            // On 23+ (M+) devices, GPS permission not granted. Request permission.
+            ActivityCompat.requestPermissions(
+                    this,
+                    new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
+                    REQUEST_GPS_PERMISSION);
+        }
     }
 
     /**
-     * Adjusts the color of the speed based on its value relative to the speed limit.
+     * Adjusts the visibility of views based on location permissions.
      */
-    private void adjustColor() {
+    private void updateActivityViewsBasedOnLocationPermissions() {
-        SpeedState state = SpeedState.ABOVE;
-        if (mCurrentSpeed <= mCurrentSpeedLimit - 5) {
-            state = SpeedState.BELOW;
-        } else if (mCurrentSpeed <= mCurrentSpeedLimit) {
-            state = SpeedState.CLOSE;
-        }
 
-        mCurrentSpeedText.setTextColor(getResources().getColor(state.getColor()));
+        /*
+         * If the user has approved location but we don't have a signal yet, we let the user know
+         * we are waiting on the GPS signal (this sometimes takes a little while). Otherwise, the
+         * user might think something is wrong.
+         */
+        if (mGpsPermissionApproved && mWaitingForGpsSignal) {
+
+            // We are getting a GPS signal w/ user permission.
+            mGpsIssueTextView.setText(mAcquiringGpsMessage);
+            mGpsIssueTextView.setVisibility(View.VISIBLE);
+            mGpsPermissionImageView.setImageResource(R.drawable.ic_gps_saving_grey600_96dp);
+
+            mSpeedTextView.setVisibility(View.GONE);
+            mSpeedLimitTextView.setVisibility(View.GONE);
+            mCurrentSpeedMphTextView.setVisibility(View.GONE);
+
+        } else if (mGpsPermissionApproved) {
+
+            mGpsIssueTextView.setVisibility(View.GONE);
+
+            mSpeedTextView.setVisibility(View.VISIBLE);
+            mSpeedLimitTextView.setVisibility(View.VISIBLE);
+            mCurrentSpeedMphTextView.setVisibility(View.VISIBLE);
+            mGpsPermissionImageView.setImageResource(R.drawable.ic_gps_saving_grey600_96dp);
+
+        } else {
+
+            // User needs to enable location for the app to work.
+            mGpsIssueTextView.setVisibility(View.VISIBLE);
+            mGpsIssueTextView.setText(mGpsPermissionNeededMessage);
+            mGpsPermissionImageView.setImageResource(R.drawable.ic_gps_not_saving_grey600_96dp);
+
+            mSpeedTextView.setVisibility(View.GONE);
+            mSpeedLimitTextView.setVisibility(View.GONE);
+            mCurrentSpeedMphTextView.setVisibility(View.GONE);
+        }
+    }
+
+    private void updateSpeedInViews() {
+
+        if (mGpsPermissionApproved) {
+
+            mSpeedLimitTextView.setText(getString(R.string.speed_limit, mSpeedLimit));
+            mSpeedTextView.setText(String.format(getString(R.string.speed_format), mSpeed));
+
+            // Adjusts the color of the speed based on its value relative to the speed limit.
+            SpeedState state = SpeedState.ABOVE;
+            if (mSpeed <= mSpeedLimit - 5) {
+                state = SpeedState.BELOW;
+            } else if (mSpeed <= mSpeedLimit) {
+                state = SpeedState.CLOSE;
+            }
+
+            mSpeedTextView.setTextColor(getResources().getColor(state.getColor()));
+
+            // Causes the (green) dot blinks when new GPS location data is acquired.
+            mHandler.post(new Runnable() {
+                @Override
+                public void run() {
+                    mBlinkingGpsStatusDotView.setVisibility(View.VISIBLE);
+                }
+            });
+            mBlinkingGpsStatusDotView.setVisibility(View.VISIBLE);
+            mHandler.postDelayed(new Runnable() {
+                @Override
+                public void run() {
+                    mBlinkingGpsStatusDotView.setVisibility(View.INVISIBLE);
+                }
+            }, INDICATOR_DOT_FADE_AWAY_MS);
+        }
     }
 
     @Override
     public void onConnected(Bundle bundle) {
-        LocationRequest locationRequest = LocationRequest.create()
-                .setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY)
-                .setInterval(UPDATE_INTERVAL_MS)
-                .setFastestInterval(FASTEST_INTERVAL_MS);
 
-        LocationServices.FusedLocationApi
+        Log.d(TAG, "onConnected()");
-                .requestLocationUpdates(mGoogleApiClient, locationRequest, this)
-                .setResultCallback(new ResultCallback<Status>() {
 
-                    @Override
+        /*
-                    public void onResult(Status status) {
+         * mGpsPermissionApproved covers 23+ (M+) style permissions. If that is already approved or
-                        if (status.getStatus().isSuccess()) {
+         * the device is pre-23, the app uses mSaveGpsLocation to save the user's location
-                            if (Log.isLoggable(TAG, Log.DEBUG)) {
+         * preference.
-                                Log.d(TAG, "Successfully requested location updates");
+         */
+        if (mGpsPermissionApproved) {
+
+            LocationRequest locationRequest = LocationRequest.create()
+                    .setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY)
+                    .setInterval(UPDATE_INTERVAL_MS)
+                    .setFastestInterval(FASTEST_INTERVAL_MS);
+
+            LocationServices.FusedLocationApi
+                    .requestLocationUpdates(mGoogleApiClient, locationRequest, this)
+                    .setResultCallback(new ResultCallback<Status>() {
+
+                        @Override
+                        public void onResult(Status status) {
+                            if (status.getStatus().isSuccess()) {
+                                if (Log.isLoggable(TAG, Log.DEBUG)) {
+                                    Log.d(TAG, "Successfully requested location updates");
+                                }
+                            } else {
+                                Log.e(TAG,
+                                        "Failed in requesting location updates, "
+                                                + "status code: "
+                                                + status.getStatusCode() + ", message: " + status
+                                                .getStatusMessage());
                             }
-                        } else {
-                            Log.e(TAG,
-                                    "Failed in requesting location updates, "
-                                            + "status code: "
-                                            + status.getStatusCode() + ", message: " + status
-                                            .getStatusMessage());
                         }
-                    }
+                    });
-                });
+        }
     }
 
     @Override
     public void onConnectionSuspended(int i) {
-        if (Log.isLoggable(TAG, Log.DEBUG)) {
+        Log.d(TAG, "onConnectionSuspended(): connection to location client suspended");
-            Log.d(TAG, "onConnectionSuspended(): connection to location client suspended");
+
-        }
         LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, this);
     }
 
     @Override
     public void onConnectionFailed(ConnectionResult connectionResult) {
-        Log.e(TAG, "onConnectionFailed(): connection to location client failed");
+        Log.e(TAG, "onConnectionFailed(): " + connectionResult.getErrorMessage());
     }
 
     @Override
     public void onLocationChanged(Location location) {
-        updateSpeedVisibility(true);
+        Log.d(TAG, "onLocationChanged() : " + location);
-        setCurrentSpeed(location.getSpeed() * MPH_IN_METERS_PER_SECOND);
+
-        flashDot();
+
+        if (mWaitingForGpsSignal) {
+            mWaitingForGpsSignal = false;
+            updateActivityViewsBasedOnLocationPermissions();
+        }
+
+        mSpeed = location.getSpeed() * MPH_IN_METERS_PER_SECOND;
+        updateSpeedInViews();
         addLocationEntry(location.getLatitude(), location.getLongitude());
     }
 
-    /**
+    /*
-     * Causes the (green) dot blinks when new GPS location data is acquired.
+     * Adds a data item to the data Layer storage.
-     */
-    private void flashDot() {
-        mHandler.post(new Runnable() {
-            @Override
-            public void run() {
-                mDot.setVisibility(View.VISIBLE);
-            }
-        });
-        mDot.setVisibility(View.VISIBLE);
-        mHandler.postDelayed(new Runnable() {
-            @Override
-            public void run() {
-                mDot.setVisibility(View.INVISIBLE);
-            }
-        }, INDICATOR_DOT_FADE_AWAY_MS);
-    }
-
-    /**
-     * Adjusts the visibility of speed indicator based on the arrival of GPS data.
-     */
-    private void updateSpeedVisibility(boolean speedVisible) {
-        if (speedVisible) {
-            mAcquiringGps.setVisibility(View.GONE);
-            mCurrentSpeedText.setVisibility(View.VISIBLE);
-            mCurrentSpeedMphText.setVisibility(View.VISIBLE);
-        } else {
-            mAcquiringGps.setVisibility(View.VISIBLE);
-            mCurrentSpeedText.setVisibility(View.GONE);
-            mCurrentSpeedMphText.setVisibility(View.GONE);
-        }
-    }
-
-    /**
-     * Adds a data item to the data Layer storage
      */
     private void addLocationEntry(double latitude, double longitude) {
-        if (!mSaveGpsLocation || !mGoogleApiClient.isConnected()) {
+        if (!mGpsPermissionApproved || !mGoogleApiClient.isConnected()) {
             return;
         }
         mCalendar.setTimeInMillis(System.currentTimeMillis());
@@ -315,29 +421,56 @@ public class WearableMainActivity extends Activity implements GoogleApiClient.Co
                 });
     }
 
+    /**
+     * Handles user choices for both speed limit and location permissions (GPS tracking).
+     */
     @Override
-    protected void onStop() {
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
-        super.onStop();
+
-        if (mGoogleApiClient.isConnected()) {
+        if (requestCode == REQUEST_PICK_SPEED_LIMIT) {
-            LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, this);
+            if (resultCode == RESULT_OK) {
+                // The user updated the speed limit.
+                int newSpeedLimit =
+                        data.getIntExtra(SpeedPickerActivity.EXTRA_NEW_SPEED_LIMIT, mSpeedLimit);
+
+                SharedPreferences sharedPreferences =
+                        PreferenceManager.getDefaultSharedPreferences(this);
+                SharedPreferences.Editor editor = sharedPreferences.edit();
+                editor.putInt(WearableMainActivity.PREFS_SPEED_LIMIT_KEY, newSpeedLimit);
+                editor.apply();
+
+                mSpeedLimit = newSpeedLimit;
+
+                updateSpeedInViews();
+            }
         }
-        mGoogleApiClient.disconnect();
     }
 
+    /**
+     * Callback received when a permissions request has been completed.
+     */
     @Override
-    protected void onResume() {
+    public void onRequestPermissionsResult(
-        super.onResume();
+            int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
-        getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
-        mCalendar = Calendar.getInstance();
-        setSpeedLimit();
-        adjustColor();
-        updateRecordingIcon();
-    }
 
-    private void updateRecordingIcon() {
+        Log.d(TAG, "onRequestPermissionsResult(): " + permissions);
-        mSaveGpsLocation = LocationSettingActivity.getGpsRecordingStatusFromPreferences(this);
+
-        mSaveImageView.setImageResource(mSaveGpsLocation ? R.drawable.ic_gps_saving_grey600_96dp
+
-                : R.drawable.ic_gps_not_saving_grey600_96dp);
+        if (requestCode == REQUEST_GPS_PERMISSION) {
+            Log.i(TAG, "Received response for GPS permission request.");
+
+            if ((grantResults.length == 1)
+                    && (grantResults[0] == PackageManager.PERMISSION_GRANTED)) {
+                Log.i(TAG, "GPS permission granted.");
+                mGpsPermissionApproved = true;
+            } else {
+                Log.i(TAG, "GPS permission NOT granted.");
+                mGpsPermissionApproved = false;
+            }
+
+            updateActivityViewsBasedOnLocationPermissions();
+
+        }
     }
 
     /**

samples/browseable/SpeedTracker/Wearable/src/com.example.android.wearable.speedtracker/ui/LocationSettingActivity.java

@@ -1,75 +0,0 @@
-/*
- * Copyright (C) 2014 Google Inc. All Rights Reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.example.android.wearable.speedtracker.ui;
-
-import android.app.Activity;
-import android.content.Context;
-import android.content.SharedPreferences;
-import android.os.Bundle;
-import android.preference.PreferenceManager;
-import android.view.View;
-import android.widget.TextView;
-
-import com.example.android.wearable.speedtracker.R;
-
-/**
- * A simple activity that allows the user to start or stop recording of GPS location data.
- */
-public class LocationSettingActivity extends Activity {
-
-    private static final String PREFS_KEY_SAVE_GPS = "save-gps";
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.saving_activity);
-        TextView textView = (TextView) findViewById(R.id.textView);
-        textView.setText(getGpsRecordingStatusFromPreferences(this) ? R.string.stop_saving_gps
-                : R.string.start_saving_gps);
-
-    }
-
-    public void onClick(View view) {
-        switch (view.getId()) {
-            case R.id.submitBtn:
-                saveGpsRecordingStatusToPreferences(LocationSettingActivity.this,
-                        !getGpsRecordingStatusFromPreferences(this));
-                break;
-            case R.id.cancelBtn:
-                break;
-        }
-        finish();
-    }
-
-    /**
-     * Get the persisted value for whether the app should record the GPS location data or not. If
-     * there is no prior value persisted, it returns {@code false}.
-     */
-    public static boolean getGpsRecordingStatusFromPreferences(Context context) {
-        SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(context);
-        return pref.getBoolean(PREFS_KEY_SAVE_GPS, false);
-    }
-
-    /**
-     * Persists the user selection to whether save the GPS location data or not.
-     */
-    public static void saveGpsRecordingStatusToPreferences(Context context, boolean value) {
-        SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(context);
-        pref.edit().putBoolean(PREFS_KEY_SAVE_GPS, value).apply();
-
-    }
-}

samples/browseable/SpeedTracker/Wearable/src/com.example.android.wearable.speedtracker/ui/SpeedPickerListAdapter.java

@@ -41,6 +41,9 @@ public class SpeedPickerListAdapter extends WearableListView.Adapter {
         mDataSet = dataset;
     }
 
+    /**
+     * Displays all possible speed limit choices.
+     */
     public static class ItemViewHolder extends WearableListView.ViewHolder {
 
         private TextView mTextView;

samples/browseable/StorageProvider/src/com.example.android.storageprovider/MyCloudProvider.java

@@ -51,7 +51,7 @@ import java.util.Set;
  * Manages documents and exposes them to the Android system for sharing.
  */
 public class MyCloudProvider extends DocumentsProvider {
-    private static final String TAG = MyCloudProvider.class.getSimpleName();
+    private static final String TAG = "MyCloudProvider";
 
     // Use these as the default columns to return information about a root if no specific
     // columns are requested in a query.

samples/browseable/StorageProvider/src/com.example.android.storageprovider/StorageProviderFragment.java

@@ -31,9 +31,9 @@ import com.example.android.common.logger.Log;
  * Toggles the user's login status via a login menu option, and enables/disables the cloud storage
  * content provider.
  */
-public class MyCloudFragment extends Fragment {
+public class StorageProviderFragment extends Fragment {
 
-    private static final String TAG = "MyCloudFragment";
+    private static final String TAG = "StorageProviderFragment";
     private static final String AUTHORITY = "com.example.android.storageprovider.documents";
     private boolean mLoggedIn = false;
 

samples/browseable/SynchronizedNotifications/Application/AndroidManifest.xml

@@ -23,7 +23,7 @@
     android:versionName="1.0">
 
     <uses-sdk android:minSdkVersion="18"
-        android:targetSdkVersion="21" />
+        android:targetSdkVersion="23" />
 
     <application android:allowBackup="true"
         android:label="@string/app_name"

samples/browseable/SynchronizedNotifications/Wearable/AndroidManifest.xml

@@ -20,7 +20,7 @@
     package="com.example.android.wearable.synchronizednotifications">
 
     <uses-sdk android:minSdkVersion="20"
-        android:targetSdkVersion="21" />
+        android:targetSdkVersion="22" />
 
     <uses-feature android:name="android.hardware.type.watch" />
 

samples/browseable/Timer/AndroidManifest.xml

@@ -18,7 +18,7 @@
         package="com.example.android.wearable.timer" >
 
     <uses-sdk android:minSdkVersion="20"
-              android:targetSdkVersion="21" />
+              android:targetSdkVersion="22" />
 
     <uses-feature android:name="android.hardware.type.watch" />
 

samples/browseable/WatchFace/Application/AndroidManifest.xml

@@ -18,13 +18,19 @@
         package="com.example.android.wearable.watchface" >
 
     <uses-sdk android:minSdkVersion="18"
-              android:targetSdkVersion="21" />
+              android:targetSdkVersion="23" />
 
     <!-- Permissions required by the wearable app -->
     <uses-permission android:name="com.google.android.permission.PROVIDE_BACKGROUND" />
     <uses-permission android:name="android.permission.WAKE_LOCK" />
+
+    <!-- Requests to calendar are only made on the wear side (CalendarWatchFaceService.java), so
+    no runtime permissions are needed on the phone side. -->
     <uses-permission android:name="android.permission.READ_CALENDAR" />
 
+    <!-- Location permission used by FitDistanceWatchFaceService -->
+    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
+
     <!-- All intent-filters for config actions must include the categories
         com.google.android.wearable.watchface.category.COMPANION_CONFIGURATION and
         android.intent.category.DEFAULT. -->
@@ -55,6 +61,18 @@
             </intent-filter>
         </activity>
 
+        <!-- This activity is needed to allow the user to authorize Google Fit for the Fit Distance
+             WatchFace (required to view distance). -->
+        <activity
+            android:name=".FitDistanceWatchFaceConfigActivity"
+            android:label="@string/app_name">
+            <intent-filter>
+                <action android:name="com.example.android.wearable.watchface.CONFIG_FIT_DISTANCE" />
+                <category android:name="com.google.android.wearable.watchface.category.COMPANION_CONFIGURATION" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+        </activity>
+
         <activity
                 android:name=".OpenGLWatchFaceConfigActivity"
                 android:label="@string/app_name">

samples/browseable/WatchFace/Application/res/layout/activity_fit_watch_face_config.xml

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2014 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:paddingTop="@dimen/activity_vertical_margin"
+    android:paddingLeft="@dimen/activity_horizontal_margin"
+    android:paddingRight="@dimen/activity_horizontal_margin"
+    tools:context="com.example.android.wearable.watchface.FitDistanceWatchFaceConfigActivity">
+
+    <Switch
+        android:id="@+id/fit_auth_switch"
+        android:text="@string/fit_config_switch_text"
+        android:enabled="false"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:onClick="onSwitchClicked"/>
+
+</RelativeLayout>

samples/browseable/WatchFace/Application/res/values-w820dp/dimens.xml

@@ -0,0 +1,6 @@
+<resources>
+    <!-- Example customization of dimensions originally defined in res/values/dimens.xml
+         (such as screen margins) for screens with more than 820dp of available width. This
+         would include 7" and 10" devices in landscape (~960dp and ~1280dp respectively). -->
+    <dimen name="activity_horizontal_margin">64dp</dimen>
+</resources>

samples/browseable/WatchFace/Application/res/values/base-strings.xml

@@ -23,9 +23,14 @@
             
 This sample demonstrates how to create watch faces for android wear and includes a phone app
 and a wearable app. The wearable app has a variety of watch faces including analog, digital,
-opengl, calendar, interactive, etc. It also includes a watch-side configuration example.
+opengl, calendar, steps, interactive, etc. It also includes a watch-side configuration example.
 The phone app includes a phone-side configuration example.
 
+Additional note on Steps WatchFace Sample, if the user has not installed or setup the Google Fit app
+on their phone and their Wear device has not configured the Google Fit Wear App, then you may get
+zero steps until one of the two is setup. Please note, many Wear devices configure the Google Fit
+Wear App beforehand.
+            
         
         ]]>
     </string>

samples/browseable/WatchFace/Application/res/values/dimens.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+<!-- Example customization of dimensions originally defined in res/values/dimens.xml
+     (such as screen margins) for screens with more than 820dp of available width. This
+     would include 7" and 10" devices in landscape (~960dp and ~1280dp respectively). -->
+     <dimen name="activity_horizontal_margin">64dp</dimen>
+     <dimen name="activity_vertical_margin">10dp</dimen>
+</resources>

samples/browseable/WatchFace/Application/res/values/strings.xml

@@ -22,6 +22,8 @@
     <string name="digital_config_minutes">Minutes</string>
     <string name="digital_config_seconds">Seconds</string>
 
+    <string name="fit_config_switch_text">Google Fit</string>
+
     <string name="title_no_device_connected">No wearable device is currently connected.</string>
     <string name="ok_no_device_connected">OK</string>
 

samples/browseable/WatchFace/Application/src/com.example.android.wearable.watchface/FitDistanceWatchFaceConfigActivity.java

@@ -0,0 +1,255 @@
+package com.example.android.wearable.watchface;
+
+import com.google.android.gms.common.ConnectionResult;
+import com.google.android.gms.common.GooglePlayServicesUtil;
+import com.google.android.gms.common.Scopes;
+import com.google.android.gms.common.api.GoogleApiClient;
+import com.google.android.gms.common.api.PendingResult;
+import com.google.android.gms.common.api.ResultCallback;
+import com.google.android.gms.common.api.Scope;
+import com.google.android.gms.common.api.Status;
+import com.google.android.gms.fitness.Fitness;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentSender;
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+import android.widget.Switch;
+import android.widget.Toast;
+
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Allows users of the Fit WatchFace to tie their Google Fit account to the WatchFace.
+ */
+public class FitDistanceWatchFaceConfigActivity extends Activity implements
+        GoogleApiClient.ConnectionCallbacks,
+        GoogleApiClient.OnConnectionFailedListener {
+
+    private static final String TAG = "FitDistanceConfig";
+
+    // Request code for launching the Intent to resolve authorization.
+    private static final int REQUEST_OAUTH = 1;
+
+    // Shared Preference used to record if the user has enabled Google Fit previously.
+    private static final String PREFS_FIT_ENABLED_BY_USER =
+            "com.example.android.wearable.watchface.preferences.FIT_ENABLED_BY_USER";
+
+    /* Tracks whether an authorization activity is stacking over the current activity, i.e., when
+     *  a known auth error is being resolved, such as showing the account chooser or presenting a
+     *  consent dialog. This avoids common duplications as might happen on screen rotations, etc.
+     */
+    private static final String EXTRA_AUTH_STATE_PENDING =
+            "com.example.android.wearable.watchface.extra.AUTH_STATE_PENDING";
+
+    private static final long FIT_DISABLE_TIMEOUT_SECS = TimeUnit.SECONDS.toMillis(5);;
+
+    private boolean mResolvingAuthorization;
+
+    private boolean mFitEnabled;
+
+    private GoogleApiClient mGoogleApiClient;
+
+    private Switch mFitAuthSwitch;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_fit_watch_face_config);
+
+        mFitAuthSwitch = (Switch) findViewById(R.id.fit_auth_switch);
+
+        if (savedInstanceState != null) {
+            mResolvingAuthorization =
+                    savedInstanceState.getBoolean(EXTRA_AUTH_STATE_PENDING, false);
+        } else {
+            mResolvingAuthorization = false;
+        }
+
+        // Checks if user previously enabled/approved Google Fit.
+        SharedPreferences sharedPreferences = getPreferences(Context.MODE_PRIVATE);
+        mFitEnabled =
+                sharedPreferences.getBoolean(PREFS_FIT_ENABLED_BY_USER, false);
+
+        mGoogleApiClient = new GoogleApiClient.Builder(this)
+                .addApi(Fitness.HISTORY_API)
+                .addApi(Fitness.RECORDING_API)
+                .addApi(Fitness.CONFIG_API)
+                .addScope(new Scope(Scopes.FITNESS_LOCATION_READ_WRITE))
+                .addConnectionCallbacks(this)
+                .addOnConnectionFailedListener(this)
+                .build();
+    }
+
+    @Override
+    protected void onStart() {
+        super.onStart();
+
+        if ((mFitEnabled) && (mGoogleApiClient != null)) {
+
+            mFitAuthSwitch.setChecked(true);
+            mFitAuthSwitch.setEnabled(true);
+
+            mGoogleApiClient.connect();
+
+        } else {
+
+            mFitAuthSwitch.setChecked(false);
+            mFitAuthSwitch.setEnabled(true);
+        }
+    }
+
+    @Override
+    protected void onStop() {
+        super.onStop();
+
+        if ((mGoogleApiClient != null) && (mGoogleApiClient.isConnected())) {
+            mGoogleApiClient.disconnect();
+        }
+    }
+
+    @Override
+    protected void onSaveInstanceState(Bundle bundle) {
+        super.onSaveInstanceState(bundle);
+        bundle.putBoolean(EXTRA_AUTH_STATE_PENDING, mResolvingAuthorization);
+    }
+
+    @Override
+    protected void onRestoreInstanceState(Bundle savedInstanceState) {
+        super.onRestoreInstanceState(savedInstanceState);
+
+        if (savedInstanceState != null) {
+            mResolvingAuthorization =
+                    savedInstanceState.getBoolean(EXTRA_AUTH_STATE_PENDING, false);
+        }
+    }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        Log.d(TAG, "onActivityResult()");
+
+        if (requestCode == REQUEST_OAUTH) {
+            mResolvingAuthorization = false;
+
+            if (resultCode == RESULT_OK) {
+                setUserFitPreferences(true);
+
+                if (!mGoogleApiClient.isConnecting() && !mGoogleApiClient.isConnected()) {
+                    mGoogleApiClient.connect();
+                }
+            } else {
+                // User cancelled authorization, reset the switch.
+                setUserFitPreferences(false);
+            }
+        }
+    }
+
+    @Override
+    public void onConnected(Bundle connectionHint) {
+        Log.d(TAG, "onConnected: " + connectionHint);
+    }
+
+    @Override
+    public void onConnectionSuspended(int cause) {
+
+        if (cause == GoogleApiClient.ConnectionCallbacks.CAUSE_NETWORK_LOST) {
+            Log.i(TAG, "Connection lost.  Cause: Network Lost.");
+        } else if (cause == GoogleApiClient.ConnectionCallbacks.CAUSE_SERVICE_DISCONNECTED) {
+            Log.i(TAG, "Connection lost.  Reason: Service Disconnected");
+        } else {
+            Log.i(TAG, "onConnectionSuspended: " + cause);
+        }
+
+        mFitAuthSwitch.setChecked(false);
+        mFitAuthSwitch.setEnabled(true);
+    }
+
+    @Override
+    public void onConnectionFailed(ConnectionResult result) {
+        Log.d(TAG, "Connection to Google Fit failed. Cause: " + result.toString());
+
+        if (!result.hasResolution()) {
+            // User cancelled authorization, reset the switch.
+            mFitAuthSwitch.setChecked(false);
+            mFitAuthSwitch.setEnabled(true);
+            // Show the localized error dialog
+            GooglePlayServicesUtil.getErrorDialog(result.getErrorCode(), this, 0).show();
+            return;
+        }
+
+        // Resolve failure if not already trying/authorizing.
+        if (!mResolvingAuthorization) {
+            try {
+                Log.i(TAG, "Attempting to resolve failed GoogleApiClient connection");
+                mResolvingAuthorization = true;
+                result.startResolutionForResult(this, REQUEST_OAUTH);
+            } catch (IntentSender.SendIntentException e) {
+                Log.e(TAG, "Exception while starting resolution activity", e);
+            }
+        }
+    }
+
+    public void onSwitchClicked(View view) {
+
+        boolean userWantsToEnableFit = mFitAuthSwitch.isChecked();
+
+        if (userWantsToEnableFit) {
+
+            Log.d(TAG, "User wants to enable Fit.");
+            if ((mGoogleApiClient != null) && (!mGoogleApiClient.isConnected())) {
+                mGoogleApiClient.connect();
+            }
+
+        } else {
+            Log.d(TAG, "User wants to disable Fit.");
+
+            // Disable switch until disconnect request is finished.
+            mFitAuthSwitch.setEnabled(false);
+
+            PendingResult<Status> pendingResult = Fitness.ConfigApi.disableFit(mGoogleApiClient);
+
+            pendingResult.setResultCallback(new ResultCallback<Status>() {
+                @Override
+                public void onResult(Status status) {
+
+                    if (status.isSuccess()) {
+                        Toast.makeText(
+                                FitDistanceWatchFaceConfigActivity.this,
+                                "Disconnected from Google Fit.",
+                                Toast.LENGTH_LONG).show();
+
+                        setUserFitPreferences(false);
+
+                        mGoogleApiClient.disconnect();
+
+
+                    } else {
+                        Toast.makeText(
+                                FitDistanceWatchFaceConfigActivity.this,
+                                "Unable to disconnect from Google Fit. See logcat for details.",
+                                Toast.LENGTH_LONG).show();
+
+                        // Re-set the switch since auth failed.
+                        setUserFitPreferences(true);
+                    }
+                }
+            }, FIT_DISABLE_TIMEOUT_SECS, TimeUnit.SECONDS);
+        }
+    }
+
+    private void setUserFitPreferences(boolean userFitPreferences) {
+
+        mFitEnabled = userFitPreferences;
+        SharedPreferences sharedPreferences = getPreferences(Context.MODE_PRIVATE);
+        SharedPreferences.Editor editor = sharedPreferences.edit();
+        editor.putBoolean(PREFS_FIT_ENABLED_BY_USER, userFitPreferences);
+        editor.commit();
+
+        mFitAuthSwitch.setChecked(userFitPreferences);
+        mFitAuthSwitch.setEnabled(true);
+    }
+}

samples/browseable/WatchFace/Wearable/AndroidManifest.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2014 The Android Open Source Project
+<!--
+ Copyright (C) 2014 The Android Open Source Project
 
      Licensed under the Apache License, Version 2.0 (the "License");
      you may not use this file except in compliance with the License.
@@ -13,12 +14,12 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-        package="com.example.android.wearable.watchface" >
+    package="com.example.android.wearable.watchface" >
 
-    <uses-sdk android:minSdkVersion="21"
+    <uses-sdk
-        android:targetSdkVersion="21" />
+        android:minSdkVersion="21"
+        android:targetSdkVersion="23" />
 
     <uses-feature android:name="android.hardware.type.watch" />
 
@@ -29,102 +30,113 @@
     <!-- Calendar permission used by CalendarWatchFaceService -->
     <uses-permission android:name="android.permission.READ_CALENDAR" />
 
+    <!-- Location permission used by FitDistanceWatchFaceService -->
+    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
+
     <application
-            android:allowBackup="true"
+        android:allowBackup="true"
-            android:icon="@drawable/ic_launcher"
+        android:icon="@drawable/ic_launcher"
-            android:label="@string/app_name" >
+        android:label="@string/app_name" >
+
+        <meta-data
+            android:name="com.google.android.gms.version"
+            android:value="@integer/google_play_services_version" />
+
+        <uses-library android:name="com.google.android.wearable" android:required="false" />
 
         <service
-                android:name=".AnalogWatchFaceService"
+            android:name=".AnalogWatchFaceService"
-                android:label="@string/analog_name"
+            android:label="@string/analog_name"
-                android:permission="android.permission.BIND_WALLPAPER" >
+            android:permission="android.permission.BIND_WALLPAPER" >
             <meta-data
-                    android:name="android.service.wallpaper"
+                android:name="android.service.wallpaper"
-                    android:resource="@xml/watch_face" />
+                android:resource="@xml/watch_face" />
             <meta-data
-                    android:name="com.google.android.wearable.watchface.preview"
+                android:name="com.google.android.wearable.watchface.preview"
-                    android:resource="@drawable/preview_analog" />
+                android:resource="@drawable/preview_analog" />
             <meta-data
-                    android:name="com.google.android.wearable.watchface.preview_circular"
+                android:name="com.google.android.wearable.watchface.preview_circular"
-                    android:resource="@drawable/preview_analog_circular" />
+                android:resource="@drawable/preview_analog_circular" />
             <meta-data
-                    android:name="com.google.android.wearable.watchface.companionConfigurationAction"
+                android:name="com.google.android.wearable.watchface.companionConfigurationAction"
-                    android:value="com.example.android.wearable.watchface.CONFIG_ANALOG" />
+                android:value="com.example.android.wearable.watchface.CONFIG_ANALOG" />
-            <intent-filter>
-                <action android:name="android.service.wallpaper.WallpaperService" />
-                <category android:name="com.google.android.wearable.watchface.category.WATCH_FACE" />
-            </intent-filter>
-        </service>
-
-        <service
-                android:name=".SweepWatchFaceService"
-                android:label="@string/sweep_name"
-                android:permission="android.permission.BIND_WALLPAPER" >
-            <meta-data
-                    android:name="android.service.wallpaper"
-                    android:resource="@xml/watch_face" />
-            <meta-data
-                    android:name="com.google.android.wearable.watchface.preview"
-                    android:resource="@drawable/preview_analog" />
-            <meta-data
-                    android:name="com.google.android.wearable.watchface.preview_circular"
-                    android:resource="@drawable/preview_analog_circular" />
-            <intent-filter>
-                <action android:name="android.service.wallpaper.WallpaperService" />
-                <category android:name="com.google.android.wearable.watchface.category.WATCH_FACE" />
-            </intent-filter>
-        </service>
-
-        <service
-                android:name=".OpenGLWatchFaceService"
-                android:label="@string/opengl_name"
-                android:permission="android.permission.BIND_WALLPAPER" >
-            <meta-data
-                    android:name="android.service.wallpaper"
-                    android:resource="@xml/watch_face" />
-            <meta-data
-                    android:name="com.google.android.wearable.watchface.preview"
-                    android:resource="@drawable/preview_opengl" />
-            <meta-data
-                    android:name="com.google.android.wearable.watchface.preview_circular"
-                    android:resource="@drawable/preview_opengl_circular" />
-            <meta-data
-                    android:name="com.google.android.wearable.watchface.companionConfigurationAction"
-                    android:value="com.example.android.wearable.watchface.CONFIG_OPENGL" />
 
             <intent-filter>
                 <action android:name="android.service.wallpaper.WallpaperService" />
+
                 <category android:name="com.google.android.wearable.watchface.category.WATCH_FACE" />
             </intent-filter>
         </service>
-
         <service
-                android:name=".CardBoundsWatchFaceService"
+            android:name=".SweepWatchFaceService"
-                android:label="@string/card_bounds_name"
+            android:label="@string/sweep_name"
-                android:permission="android.permission.BIND_WALLPAPER" >
+            android:permission="android.permission.BIND_WALLPAPER" >
             <meta-data
-                    android:name="android.service.wallpaper"
+                android:name="android.service.wallpaper"
-                    android:resource="@xml/watch_face" />
+                android:resource="@xml/watch_face" />
             <meta-data
-                    android:name="com.google.android.wearable.watchface.preview"
+                android:name="com.google.android.wearable.watchface.preview"
-                    android:resource="@drawable/preview_card_bounds" />
+                android:resource="@drawable/preview_analog" />
             <meta-data
-                    android:name="com.google.android.wearable.watchface.preview_circular"
+                android:name="com.google.android.wearable.watchface.preview_circular"
-                    android:resource="@drawable/preview_card_bounds_circular" />
+                android:resource="@drawable/preview_analog_circular" />
-            <meta-data
+
-                    android:name="com.google.android.wearable.watchface.companionConfigurationAction"
-                    android:value="com.example.android.wearable.watchface.CONFIG_CARD_BOUNDS" />
             <intent-filter>
                 <action android:name="android.service.wallpaper.WallpaperService" />
+
                 <category android:name="com.google.android.wearable.watchface.category.WATCH_FACE" />
             </intent-filter>
         </service>
-
-
         <service
-                android:name=".InteractiveWatchFaceService"
+            android:name=".OpenGLWatchFaceService"
-                android:label="@string/interactive_name"
+            android:label="@string/opengl_name"
-                android:permission="android.permission.BIND_WALLPAPER" >
+            android:permission="android.permission.BIND_WALLPAPER" >
+            <meta-data
+                android:name="android.service.wallpaper"
+                android:resource="@xml/watch_face" />
+            <meta-data
+                android:name="com.google.android.wearable.watchface.preview"
+                android:resource="@drawable/preview_opengl" />
+            <meta-data
+                android:name="com.google.android.wearable.watchface.preview_circular"
+                android:resource="@drawable/preview_opengl_circular" />
+            <meta-data
+                android:name="com.google.android.wearable.watchface.companionConfigurationAction"
+                android:value="com.example.android.wearable.watchface.CONFIG_OPENGL" />
+
+            <intent-filter>
+                <action android:name="android.service.wallpaper.WallpaperService" />
+
+                <category android:name="com.google.android.wearable.watchface.category.WATCH_FACE" />
+            </intent-filter>
+        </service>
+        <service
+            android:name=".CardBoundsWatchFaceService"
+            android:label="@string/card_bounds_name"
+            android:permission="android.permission.BIND_WALLPAPER" >
+            <meta-data
+                android:name="android.service.wallpaper"
+                android:resource="@xml/watch_face" />
+            <meta-data
+                android:name="com.google.android.wearable.watchface.preview"
+                android:resource="@drawable/preview_card_bounds" />
+            <meta-data
+                android:name="com.google.android.wearable.watchface.preview_circular"
+                android:resource="@drawable/preview_card_bounds_circular" />
+            <meta-data
+                android:name="com.google.android.wearable.watchface.companionConfigurationAction"
+                android:value="com.example.android.wearable.watchface.CONFIG_CARD_BOUNDS" />
+
+            <intent-filter>
+                <action android:name="android.service.wallpaper.WallpaperService" />
+
+                <category android:name="com.google.android.wearable.watchface.category.WATCH_FACE" />
+            </intent-filter>
+        </service>
+        <service
+            android:name=".InteractiveWatchFaceService"
+            android:label="@string/interactive_name"
+            android:permission="android.permission.BIND_WALLPAPER" >
             <meta-data
                 android:name="android.service.wallpaper"
                 android:resource="@xml/watch_face" />
@@ -134,81 +146,130 @@
             <meta-data
                 android:name="com.google.android.wearable.watchface.preview_circular"
                 android:resource="@drawable/preview_interactive_circular" />
+
             <intent-filter>
                 <action android:name="android.service.wallpaper.WallpaperService" />
-                <category
+
-                    android:name="com.google.android.wearable.watchface.category.WATCH_FACE" />
+                <category android:name="com.google.android.wearable.watchface.category.WATCH_FACE" />
             </intent-filter>
         </service>
-
         <service
-                android:name=".DigitalWatchFaceService"
+            android:name=".DigitalWatchFaceService"
-                android:label="@string/digital_name"
+            android:label="@string/digital_name"
-                android:permission="android.permission.BIND_WALLPAPER" >
+            android:permission="android.permission.BIND_WALLPAPER" >
             <meta-data
-                    android:name="android.service.wallpaper"
+                android:name="android.service.wallpaper"
-                    android:resource="@xml/watch_face" />
+                android:resource="@xml/watch_face" />
             <meta-data
-                    android:name="com.google.android.wearable.watchface.preview"
+                android:name="com.google.android.wearable.watchface.preview"
-                    android:resource="@drawable/preview_digital" />
+                android:resource="@drawable/preview_digital" />
             <meta-data
-                    android:name="com.google.android.wearable.watchface.preview_circular"
+                android:name="com.google.android.wearable.watchface.preview_circular"
-                    android:resource="@drawable/preview_digital_circular" />
+                android:resource="@drawable/preview_digital_circular" />
             <meta-data
-                    android:name="com.google.android.wearable.watchface.companionConfigurationAction"
+                android:name="com.google.android.wearable.watchface.companionConfigurationAction"
-                    android:value="com.example.android.wearable.watchface.CONFIG_DIGITAL" />
+                android:value="com.example.android.wearable.watchface.CONFIG_DIGITAL" />
             <meta-data
-                    android:name="com.google.android.wearable.watchface.wearableConfigurationAction"
+                android:name="com.google.android.wearable.watchface.wearableConfigurationAction"
-                    android:value="com.example.android.wearable.watchface.CONFIG_DIGITAL" />
+                android:value="com.example.android.wearable.watchface.CONFIG_DIGITAL" />
+
             <intent-filter>
                 <action android:name="android.service.wallpaper.WallpaperService" />
+
                 <category android:name="com.google.android.wearable.watchface.category.WATCH_FACE" />
             </intent-filter>
         </service>
 
-        <!-- All intent-filters for config actions must include the categories
+        <!--
+             All intent-filters for config actions must include the categories
             com.google.android.wearable.watchface.category.WEARABLE_CONFIGURATION
-            and android.intent.category.DEFAULT. -->
+            and android.intent.category.DEFAULT.
+        -->
 
         <activity
-                android:name=".DigitalWatchFaceWearableConfigActivity"
+            android:name=".DigitalWatchFaceWearableConfigActivity"
-                android:label="@string/digital_config_name">
+            android:label="@string/digital_config_name" >
             <intent-filter>
                 <action android:name="com.example.android.wearable.watchface.CONFIG_DIGITAL" />
+
                 <category android:name="com.google.android.wearable.watchface.category.WEARABLE_CONFIGURATION" />
                 <category android:name="android.intent.category.DEFAULT" />
             </intent-filter>
         </activity>
 
         <service
-                android:name=".CalendarWatchFaceService"
+            android:name=".CalendarWatchFaceService"
-                android:label="@string/calendar_name"
+            android:label="@string/calendar_name"
-                android:permission="android.permission.BIND_WALLPAPER" >
+            android:permission="android.permission.BIND_WALLPAPER" >
             <meta-data
-                    android:name="android.service.wallpaper"
+                android:name="android.service.wallpaper"
-                    android:resource="@xml/watch_face" />
+                android:resource="@xml/watch_face" />
             <meta-data
-                    android:name="com.google.android.wearable.watchface.preview"
+                android:name="com.google.android.wearable.watchface.preview"
-                    android:resource="@drawable/preview_calendar" />
+                android:resource="@drawable/preview_calendar" />
             <meta-data
-                    android:name="com.google.android.wearable.watchface.preview_circular"
+                android:name="com.google.android.wearable.watchface.preview_circular"
-                    android:resource="@drawable/preview_calendar_circular" />
+                android:resource="@drawable/preview_calendar_circular" />
+
             <intent-filter>
                 <action android:name="android.service.wallpaper.WallpaperService" />
+
                 <category android:name="com.google.android.wearable.watchface.category.WATCH_FACE" />
             </intent-filter>
         </service>
-
+        <service android:name=".DigitalWatchFaceConfigListenerService" >
-        <service android:name=".DigitalWatchFaceConfigListenerService">
             <intent-filter>
                 <action android:name="com.google.android.gms.wearable.BIND_LISTENER" />
             </intent-filter>
         </service>
+        <service
+            android:name=".FitDistanceWatchFaceService"
+            android:label="@string/fit_distance_name"
+            android:permission="android.permission.BIND_WALLPAPER" >
+            <meta-data
+                android:name="android.service.wallpaper"
+                android:resource="@xml/watch_face" />
+            <meta-data
+                android:name="com.google.android.wearable.watchface.preview"
+                android:resource="@drawable/preview_distance" />
+            <meta-data
+                android:name="com.google.android.wearable.watchface.preview_circular"
+                android:resource="@drawable/preview_distance_circular" />
+            <meta-data
+                android:name="com.google.android.wearable.watchface.companionConfigurationAction"
+                android:value="com.example.android.wearable.watchface.CONFIG_FIT_DISTANCE" />
 
-        <meta-data
+            <intent-filter>
-                android:name="com.google.android.gms.version"
+                <action android:name="android.service.wallpaper.WallpaperService" />
-                android:value="@integer/google_play_services_version" />
 
+                <category android:name="com.google.android.wearable.watchface.category.WATCH_FACE" />
+            </intent-filter>
+        </service>
+        <service
+            android:name=".FitStepsWatchFaceService"
+            android:label="@string/fit_steps_name"
+            android:permission="android.permission.BIND_WALLPAPER" >
+            <meta-data
+                android:name="android.service.wallpaper"
+                android:resource="@xml/watch_face" />
+            <meta-data
+                android:name="com.google.android.wearable.watchface.preview"
+                android:resource="@drawable/preview_fit" />
+            <meta-data
+                android:name="com.google.android.wearable.watchface.preview_circular"
+                android:resource="@drawable/preview_fit_circular" />
+
+            <intent-filter>
+                <action android:name="android.service.wallpaper.WallpaperService" />
+
+                <category android:name="com.google.android.wearable.watchface.category.WATCH_FACE" />
+            </intent-filter>
+        </service>
+
+        <activity
+            android:name=".CalendarWatchFacePermissionActivity"
+            android:label="@string/title_activity_calendar_watch_face_permission" >
+        </activity>
     </application>
 
 </manifest>

samples/browseable/WatchFace/Wearable/res/layout/activity_calendar_watch_face_permission.xml

@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="utf-8"?>
+<android.support.wearable.view.BoxInsetLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:id="@+id/container"
+    android:background="@color/white"
+    android:paddingTop="32dp"
+    android:paddingLeft="36dp"
+    android:paddingRight="22dp"
+    tools:context="com.example.android.wearable.watchface.CalendarWatchFacePermissionActivity"
+    tools:deviceIds="wear">
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:onClick="onClickEnablePermission"
+        android:orientation="vertical"
+        app:layout_box="all">
+
+        <TextView
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:textSize="16sp"
+            android:paddingBottom="18dp"
+            android:textColor="#000000"
+            android:text="@string/calendar_permission_text"/>
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+
+            <android.support.wearable.view.CircledImageView
+                android:id="@+id/circle"
+                android:layout_width="40dp"
+                android:layout_height="40dp"
+                app:circle_radius="20dp"
+                app:circle_color="#0086D4"
+                android:src="@drawable/ic_lock_open_white_24dp"/>
+
+            <android.support.v4.widget.Space
+                android:layout_width="8dp"
+                android:layout_height="8dp"/>
+
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:textSize="16sp"
+                android:textColor="#0086D4"
+                android:text="Enable Permission"/>
+
+
+        </LinearLayout>
+
+    </LinearLayout>
+</android.support.wearable.view.BoxInsetLayout>

samples/browseable/WatchFace/Wearable/res/values/dimens.xml

@@ -32,4 +32,15 @@
     <dimen name="interactive_y_offset">72dp</dimen>
     <dimen name="interactive_y_offset_round">84dp</dimen>
     <dimen name="interactive_line_height">25dp</dimen>
+    <dimen name="fit_text_size">40dp</dimen>
+    <dimen name="fit_text_size_round">45dp</dimen>
+    <dimen name="fit_steps_or_distance_text_size">20dp</dimen>
+    <dimen name="fit_am_pm_size">25dp</dimen>
+    <dimen name="fit_am_pm_size_round">30dp</dimen>
+    <dimen name="fit_x_offset">15dp</dimen>
+    <dimen name="fit_x_offset_round">25dp</dimen>
+    <dimen name="fit_steps_or_distance_x_offset">20dp</dimen>
+    <dimen name="fit_steps_or_distance_x_offset_round">30dp</dimen>
+    <dimen name="fit_y_offset">80dp</dimen>
+    <dimen name="fit_line_height">25dp</dimen>
 </resources>

samples/browseable/WatchFace/Wearable/res/values/strings.xml

@@ -25,11 +25,22 @@
     <string name="digital_config_name">Digital watch face configuration</string>
     <string name="digital_am">AM</string>
     <string name="digital_pm">PM</string>
+
+    <string name="fit_steps_name">Sample Fit Steps</string>
+    <string name="fit_distance_name">Sample Fit Distance</string>
+    <string name="fit_am">AM</string>
+    <string name="fit_pm">PM</string>
+    <string name="fit_steps">%1$d steps</string>
+    <string name="fit_distance">%1$,.2f meters</string>
+
     <string name="calendar_name">Sample Calendar</string>
+    <string name="calendar_permission_not_approved">&lt;br&gt;&lt;br&gt;&lt;br&gt;WatchFace requires Calendar permission. Click on this WatchFace or visit Settings &gt; Permissions to approve.</string>
     <plurals name="calendar_meetings">
         <item quantity="one">&lt;br&gt;&lt;br&gt;&lt;br&gt;You have &lt;b&gt;%1$d&lt;/b&gt; meeting in the next 24 hours.</item>
         <item quantity="other">&lt;br&gt;&lt;br&gt;&lt;br&gt;You have &lt;b&gt;%1$d&lt;/b&gt; meetings in the next 24 hours.</item>
     </plurals>
+    <string name="title_activity_calendar_watch_face_permission">Calendar Permission Activity</string>
+    <string name="calendar_permission_text">WatchFace requires Calendar access.</string>
 
     <!-- TODO: this should be shared (needs covering all the samples with Gradle build model) -->
     <string name="color_black">Black</string>

samples/browseable/WatchFace/Wearable/src/com.example.android.wearable.watchface/CalendarWatchFacePermissionActivity.java

@@ -0,0 +1,56 @@
+package com.example.android.wearable.watchface;
+
+import android.Manifest;
+import android.content.pm.PackageManager;
+import android.os.Bundle;
+import android.support.annotation.NonNull;
+import android.support.v4.app.ActivityCompat;
+import android.support.wearable.activity.WearableActivity;
+import android.util.Log;
+import android.view.View;
+
+/**
+ * Simple Activity for displaying Calendar Permission Rationale to user.
+ */
+public class CalendarWatchFacePermissionActivity extends WearableActivity {
+
+    private static final String TAG = "PermissionActivity";
+
+    /* Id to identify permission request for calendar. */
+    private static final int PERMISSION_REQUEST_READ_CALENDAR = 1;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_calendar_watch_face_permission);
+        setAmbientEnabled();
+    }
+
+    public void onClickEnablePermission(View view) {
+        Log.d(TAG, "onClickEnablePermission()");
+
+        // On 23+ (M+) devices, GPS permission not granted. Request permission.
+        ActivityCompat.requestPermissions(
+                this,
+                new String[]{Manifest.permission.READ_CALENDAR},
+                PERMISSION_REQUEST_READ_CALENDAR);
+
+    }
+
+    /*
+     * Callback received when a permissions request has been completed.
+     */
+    @Override
+    public void onRequestPermissionsResult(
+            int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
+
+        Log.d(TAG, "onRequestPermissionsResult()");
+
+        if (requestCode == PERMISSION_REQUEST_READ_CALENDAR) {
+            if ((grantResults.length == 1)
+                    && (grantResults[0] == PackageManager.PERMISSION_GRANTED)) {
+                finish();
+            }
+        }
+    }
+}

samples/browseable/WatchFace/Wearable/src/com.example.android.wearable.watchface/CalendarWatchFaceService.java

@@ -16,11 +16,13 @@
 
 package com.example.android.wearable.watchface;
 
+import android.Manifest;
 import android.content.BroadcastReceiver;
 import android.content.ContentUris;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
+import android.content.pm.PackageManager;
 import android.database.Cursor;
 import android.graphics.Canvas;
 import android.graphics.Color;
@@ -30,8 +32,10 @@ import android.os.AsyncTask;
 import android.os.Handler;
 import android.os.Message;
 import android.os.PowerManager;
+import android.support.v4.app.ActivityCompat;
 import android.support.wearable.provider.WearableCalendarContract;
 import android.support.wearable.watchface.CanvasWatchFaceService;
+import android.support.wearable.watchface.WatchFaceService;
 import android.support.wearable.watchface.WatchFaceStyle;
 import android.text.DynamicLayout;
 import android.text.Editable;
@@ -74,31 +78,37 @@ public class CalendarWatchFaceService extends CanvasWatchFaceService {
         final TextPaint mTextPaint = new TextPaint();
 
         int mNumMeetings;
+        private boolean mCalendarPermissionApproved;
+        private String mCalendarNotApprovedMessage;
 
         private AsyncTask<Void, Void, Integer> mLoadMeetingsTask;
 
+        private boolean mIsReceiverRegistered;
+
         /** Handler to load the meetings once a minute in interactive mode. */
         final Handler mLoadMeetingsHandler = new Handler() {
             @Override
             public void handleMessage(Message message) {
                 switch (message.what) {
                     case MSG_LOAD_MEETINGS:
+
                         cancelLoadMeetingTask();
-                        mLoadMeetingsTask = new LoadMeetingsTask();
+
-                        mLoadMeetingsTask.execute();
+                        // Loads meetings.
+                        if (mCalendarPermissionApproved) {
+                            mLoadMeetingsTask = new LoadMeetingsTask();
+                            mLoadMeetingsTask.execute();
+                        }
                         break;
                 }
             }
         };
 
-        private boolean mIsReceiverRegistered;
-
         private BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {
             @Override
             public void onReceive(Context context, Intent intent) {
                 if (Intent.ACTION_PROVIDER_CHANGED.equals(intent.getAction())
                         && WearableCalendarContract.CONTENT_URI.equals(intent.getData())) {
-                    cancelLoadMeetingTask();
                     mLoadMeetingsHandler.sendEmptyMessage(MSG_LOAD_MEETINGS);
                 }
             }
@@ -106,29 +116,59 @@ public class CalendarWatchFaceService extends CanvasWatchFaceService {
 
         @Override
         public void onCreate(SurfaceHolder holder) {
-            if (Log.isLoggable(TAG, Log.DEBUG)) {
-                Log.d(TAG, "onCreate");
-            }
             super.onCreate(holder);
+            Log.d(TAG, "onCreate");
+
+            mCalendarNotApprovedMessage =
+                    getResources().getString(R.string.calendar_permission_not_approved);
+
+            /* Accepts tap events to allow permission changes by user. */
             setWatchFaceStyle(new WatchFaceStyle.Builder(CalendarWatchFaceService.this)
                     .setCardPeekMode(WatchFaceStyle.PEEK_MODE_VARIABLE)
                     .setBackgroundVisibility(WatchFaceStyle.BACKGROUND_VISIBILITY_INTERRUPTIVE)
                     .setShowSystemUiTime(false)
+                    .setAcceptsTapEvents(true)
                     .build());
 
             mTextPaint.setColor(FOREGROUND_COLOR);
             mTextPaint.setTextSize(TEXT_SIZE);
 
-            mLoadMeetingsHandler.sendEmptyMessage(MSG_LOAD_MEETINGS);
+            // Enables app to handle 23+ (M+) style permissions.
+            mCalendarPermissionApproved =
+                    ActivityCompat.checkSelfPermission(
+                            getApplicationContext(),
+                            Manifest.permission.READ_CALENDAR) == PackageManager.PERMISSION_GRANTED;
+
+            if (mCalendarPermissionApproved) {
+                mLoadMeetingsHandler.sendEmptyMessage(MSG_LOAD_MEETINGS);
+            }
         }
 
         @Override
         public void onDestroy() {
             mLoadMeetingsHandler.removeMessages(MSG_LOAD_MEETINGS);
-            cancelLoadMeetingTask();
             super.onDestroy();
         }
 
+        /*
+         * Captures tap event (and tap type) and increments correct tap type total.
+         */
+        @Override
+        public void onTapCommand(int tapType, int x, int y, long eventTime) {
+            if (Log.isLoggable(TAG, Log.DEBUG)) {
+                Log.d(TAG, "Tap Command: " + tapType);
+            }
+
+            // Ignore lint error (fixed in wearable support library 1.4)
+            if (tapType == WatchFaceService.TAP_TYPE_TAP && !mCalendarPermissionApproved) {
+                Intent permissionIntent = new Intent(
+                        getApplicationContext(),
+                        CalendarWatchFacePermissionActivity.class);
+                permissionIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+                startActivity(permissionIntent);
+            }
+        }
+
         @Override
         public void onDraw(Canvas canvas, Rect bounds) {
             // Create or update mLayout if necessary.
@@ -141,8 +181,13 @@ public class CalendarWatchFaceService extends CanvasWatchFaceService {
 
             // Update the contents of mEditable.
             mEditable.clear();
-            mEditable.append(Html.fromHtml(getResources().getQuantityString(
+
-                    R.plurals.calendar_meetings, mNumMeetings, mNumMeetings)));
+            if (mCalendarPermissionApproved) {
+                mEditable.append(Html.fromHtml(getResources().getQuantityString(
+                        R.plurals.calendar_meetings, mNumMeetings, mNumMeetings)));
+            } else {
+                mEditable.append(Html.fromHtml(mCalendarNotApprovedMessage));
+            }
 
             // Draw the text on a solid background.
             canvas.drawColor(BACKGROUND_COLOR);
@@ -151,15 +196,24 @@ public class CalendarWatchFaceService extends CanvasWatchFaceService {
 
         @Override
         public void onVisibilityChanged(boolean visible) {
+            Log.d(TAG, "onVisibilityChanged()");
             super.onVisibilityChanged(visible);
             if (visible) {
-                IntentFilter filter = new IntentFilter(Intent.ACTION_PROVIDER_CHANGED);
-                filter.addDataScheme("content");
-                filter.addDataAuthority(WearableCalendarContract.AUTHORITY, null);
-                registerReceiver(mBroadcastReceiver, filter);
-                mIsReceiverRegistered = true;
 
-                mLoadMeetingsHandler.sendEmptyMessage(MSG_LOAD_MEETINGS);
+                // Enables app to handle 23+ (M+) style permissions.
+                mCalendarPermissionApproved = ActivityCompat.checkSelfPermission(
+                        getApplicationContext(),
+                        Manifest.permission.READ_CALENDAR) == PackageManager.PERMISSION_GRANTED;
+
+                if (mCalendarPermissionApproved) {
+                    IntentFilter filter = new IntentFilter(Intent.ACTION_PROVIDER_CHANGED);
+                    filter.addDataScheme("content");
+                    filter.addDataAuthority(WearableCalendarContract.AUTHORITY, null);
+                    registerReceiver(mBroadcastReceiver, filter);
+                    mIsReceiverRegistered = true;
+
+                    mLoadMeetingsHandler.sendEmptyMessage(MSG_LOAD_MEETINGS);
+                }
             } else {
                 if (mIsReceiverRegistered) {
                     unregisterReceiver(mBroadcastReceiver);
@@ -204,9 +258,9 @@ public class CalendarWatchFaceService extends CanvasWatchFaceService {
                 final Cursor cursor = getContentResolver().query(builder.build(),
                         null, null, null, null);
                 int numMeetings = cursor.getCount();
-                if (Log.isLoggable(TAG, Log.VERBOSE)) {
+
-                    Log.v(TAG, "Num meetings: " + numMeetings);
+                Log.d(TAG, "Num meetings: " + numMeetings);
-                }
+
                 return numMeetings;
             }
 

samples/browseable/WatchFace/Wearable/src/com.example.android.wearable.watchface/FitDistanceWatchFaceService.java

@@ -0,0 +1,533 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.wearable.watchface;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.res.Resources;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.Paint;
+import android.graphics.Rect;
+import android.graphics.Typeface;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+import android.support.wearable.watchface.CanvasWatchFaceService;
+import android.support.wearable.watchface.WatchFaceStyle;
+import android.text.format.DateFormat;
+import android.util.Log;
+import android.view.SurfaceHolder;
+import android.view.WindowInsets;
+
+import com.google.android.gms.common.ConnectionResult;
+import com.google.android.gms.common.Scopes;
+import com.google.android.gms.common.api.GoogleApiClient;
+import com.google.android.gms.common.api.PendingResult;
+import com.google.android.gms.common.api.ResultCallback;
+import com.google.android.gms.common.api.Scope;
+import com.google.android.gms.common.api.Status;
+import com.google.android.gms.fitness.Fitness;
+import com.google.android.gms.fitness.FitnessStatusCodes;
+import com.google.android.gms.fitness.data.DataPoint;
+import com.google.android.gms.fitness.data.DataType;
+import com.google.android.gms.fitness.data.Field;
+import com.google.android.gms.fitness.result.DailyTotalResult;
+
+import java.util.Calendar;
+import java.util.List;
+import java.util.TimeZone;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Displays the user's daily distance total via Google Fit. Distance is polled initially when the
+ * Google API Client successfully connects and once a minute after that via the onTimeTick callback.
+ * If you want more frequent updates, you will want to add your own  Handler.
+ *
+ * Authentication IS a requirement to request distance from Google Fit on Wear. Otherwise, distance
+ * will always come back as zero (or stay at whatever the distance was prior to you
+ * de-authorizing watchface).
+ *
+ * In ambient mode, the seconds are replaced with an AM/PM indicator.
+ *
+ * On devices with low-bit ambient mode, the text is drawn without anti-aliasing. On devices which
+ * require burn-in protection, the hours are drawn in normal rather than bold.
+ *
+ */
+public class FitDistanceWatchFaceService extends CanvasWatchFaceService {
+
+    private static final String TAG = "DistanceWatchFace";
+
+    private static final Typeface BOLD_TYPEFACE =
+            Typeface.create(Typeface.SANS_SERIF, Typeface.BOLD);
+    private static final Typeface NORMAL_TYPEFACE =
+            Typeface.create(Typeface.SANS_SERIF, Typeface.NORMAL);
+
+    /**
+     * Update rate in milliseconds for active mode (non-ambient).
+     */
+    private static final long ACTIVE_INTERVAL_MS = TimeUnit.SECONDS.toMillis(1);
+
+    @Override
+    public Engine onCreateEngine() {
+        return new Engine();
+    }
+
+    private class Engine extends CanvasWatchFaceService.Engine implements
+            GoogleApiClient.ConnectionCallbacks,
+            GoogleApiClient.OnConnectionFailedListener,
+            ResultCallback<DailyTotalResult> {
+
+        private static final int BACKGROUND_COLOR = Color.BLACK;
+        private static final int TEXT_HOURS_MINS_COLOR = Color.WHITE;
+        private static final int TEXT_SECONDS_COLOR = Color.GRAY;
+        private static final int TEXT_AM_PM_COLOR = Color.GRAY;
+        private static final int TEXT_COLON_COLOR = Color.GRAY;
+        private static final int TEXT_DISTANCE_COUNT_COLOR = Color.GRAY;
+
+        private static final String COLON_STRING = ":";
+
+        private static final int MSG_UPDATE_TIME = 0;
+
+        /* Handler to update the time periodically in interactive mode. */
+        private final Handler mUpdateTimeHandler = new Handler() {
+            @Override
+            public void handleMessage(Message message) {
+                switch (message.what) {
+                    case MSG_UPDATE_TIME:
+                        Log.v(TAG, "updating time");
+                        invalidate();
+                        if (shouldUpdateTimeHandlerBeRunning()) {
+                            long timeMs = System.currentTimeMillis();
+                            long delayMs =
+                                    ACTIVE_INTERVAL_MS - (timeMs % ACTIVE_INTERVAL_MS);
+                            mUpdateTimeHandler.sendEmptyMessageDelayed(MSG_UPDATE_TIME, delayMs);
+                        }
+                        break;
+                }
+            }
+        };
+
+        /**
+         * Handles time zone and locale changes.
+         */
+        private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
+            @Override
+            public void onReceive(Context context, Intent intent) {
+                mCalendar.setTimeZone(TimeZone.getDefault());
+                invalidate();
+            }
+        };
+
+        /**
+         * Unregistering an unregistered receiver throws an exception. Keep track of the
+         * registration state to prevent that.
+         */
+        private boolean mRegisteredReceiver = false;
+
+        private Paint mHourPaint;
+        private Paint mMinutePaint;
+        private Paint mSecondPaint;
+        private Paint mAmPmPaint;
+        private Paint mColonPaint;
+        private Paint mDistanceCountPaint;
+
+        private float mColonWidth;
+
+        private Calendar mCalendar;
+
+        private float mXOffset;
+        private float mXDistanceOffset;
+        private float mYOffset;
+        private float mLineHeight;
+
+        private String mAmString;
+        private String mPmString;
+
+
+        /**
+         * Whether the display supports fewer bits for each color in ambient mode. When true, we
+         * disable anti-aliasing in ambient mode.
+         */
+        private boolean mLowBitAmbient;
+
+        /*
+         * Google API Client used to make Google Fit requests for step data.
+         */
+        private GoogleApiClient mGoogleApiClient;
+
+        private boolean mDistanceRequested;
+
+        private float mDistanceTotal = 0;
+
+        @Override
+        public void onCreate(SurfaceHolder holder) {
+            Log.d(TAG, "onCreate");
+
+            super.onCreate(holder);
+
+            mDistanceRequested = false;
+            mGoogleApiClient = new GoogleApiClient.Builder(FitDistanceWatchFaceService.this)
+                    .addConnectionCallbacks(this)
+                    .addOnConnectionFailedListener(this)
+                    .addApi(Fitness.HISTORY_API)
+                    .addApi(Fitness.RECORDING_API)
+                    .addScope(new Scope(Scopes.FITNESS_LOCATION_READ))
+                    // When user has multiple accounts, useDefaultAccount() allows Google Fit to
+                    // associated with the main account for steps. It also replaces the need for
+                    // a scope request.
+                    .useDefaultAccount()
+                    .build();
+
+            setWatchFaceStyle(new WatchFaceStyle.Builder(FitDistanceWatchFaceService.this)
+                    .setCardPeekMode(WatchFaceStyle.PEEK_MODE_VARIABLE)
+                    .setBackgroundVisibility(WatchFaceStyle.BACKGROUND_VISIBILITY_INTERRUPTIVE)
+                    .setShowSystemUiTime(false)
+                    .build());
+
+            Resources resources = getResources();
+
+            mYOffset = resources.getDimension(R.dimen.fit_y_offset);
+            mLineHeight = resources.getDimension(R.dimen.fit_line_height);
+            mAmString = resources.getString(R.string.fit_am);
+            mPmString = resources.getString(R.string.fit_pm);
+
+            mHourPaint = createTextPaint(TEXT_HOURS_MINS_COLOR, BOLD_TYPEFACE);
+            mMinutePaint = createTextPaint(TEXT_HOURS_MINS_COLOR);
+            mSecondPaint = createTextPaint(TEXT_SECONDS_COLOR);
+            mAmPmPaint = createTextPaint(TEXT_AM_PM_COLOR);
+            mColonPaint = createTextPaint(TEXT_COLON_COLOR);
+            mDistanceCountPaint = createTextPaint(TEXT_DISTANCE_COUNT_COLOR);
+
+            mCalendar = Calendar.getInstance();
+
+        }
+
+        @Override
+        public void onDestroy() {
+            mUpdateTimeHandler.removeMessages(MSG_UPDATE_TIME);
+            super.onDestroy();
+        }
+
+        private Paint createTextPaint(int color) {
+            return createTextPaint(color, NORMAL_TYPEFACE);
+        }
+
+        private Paint createTextPaint(int color, Typeface typeface) {
+            Paint paint = new Paint();
+            paint.setColor(color);
+            paint.setTypeface(typeface);
+            paint.setAntiAlias(true);
+            return paint;
+        }
+
+        @Override
+        public void onVisibilityChanged(boolean visible) {
+            Log.d(TAG, "onVisibilityChanged: " + visible);
+
+            super.onVisibilityChanged(visible);
+
+            if (visible) {
+                mGoogleApiClient.connect();
+
+                registerReceiver();
+
+                // Update time zone and date formats, in case they changed while we weren't visible.
+                mCalendar.setTimeZone(TimeZone.getDefault());
+            } else {
+                unregisterReceiver();
+
+                if (mGoogleApiClient != null && mGoogleApiClient.isConnected()) {
+                    mGoogleApiClient.disconnect();
+                }
+            }
+
+            // Whether the timer should be running depends on whether we're visible (as well as
+            // whether we're in ambient mode), so we may need to start or stop the timer.
+            updateTimer();
+        }
+
+
+        private void registerReceiver() {
+            if (mRegisteredReceiver) {
+                return;
+            }
+            mRegisteredReceiver = true;
+            IntentFilter filter = new IntentFilter(Intent.ACTION_TIMEZONE_CHANGED);
+            FitDistanceWatchFaceService.this.registerReceiver(mReceiver, filter);
+        }
+
+        private void unregisterReceiver() {
+            if (!mRegisteredReceiver) {
+                return;
+            }
+            mRegisteredReceiver = false;
+            FitDistanceWatchFaceService.this.unregisterReceiver(mReceiver);
+        }
+
+        @Override
+        public void onApplyWindowInsets(WindowInsets insets) {
+            Log.d(TAG, "onApplyWindowInsets: " + (insets.isRound() ? "round" : "square"));
+
+            super.onApplyWindowInsets(insets);
+
+            // Load resources that have alternate values for round watches.
+            Resources resources = FitDistanceWatchFaceService.this.getResources();
+            boolean isRound = insets.isRound();
+            mXOffset = resources.getDimension(isRound
+                    ? R.dimen.fit_x_offset_round : R.dimen.fit_x_offset);
+            mXDistanceOffset =
+                    resources.getDimension(
+                            isRound ?
+                            R.dimen.fit_steps_or_distance_x_offset_round :
+                            R.dimen.fit_steps_or_distance_x_offset);
+            float textSize = resources.getDimension(isRound
+                    ? R.dimen.fit_text_size_round : R.dimen.fit_text_size);
+            float amPmSize = resources.getDimension(isRound
+                    ? R.dimen.fit_am_pm_size_round : R.dimen.fit_am_pm_size);
+
+            mHourPaint.setTextSize(textSize);
+            mMinutePaint.setTextSize(textSize);
+            mSecondPaint.setTextSize(textSize);
+            mAmPmPaint.setTextSize(amPmSize);
+            mColonPaint.setTextSize(textSize);
+            mDistanceCountPaint.setTextSize(
+                    resources.getDimension(R.dimen.fit_steps_or_distance_text_size));
+
+            mColonWidth = mColonPaint.measureText(COLON_STRING);
+        }
+
+        @Override
+        public void onPropertiesChanged(Bundle properties) {
+            super.onPropertiesChanged(properties);
+
+            boolean burnInProtection = properties.getBoolean(PROPERTY_BURN_IN_PROTECTION, false);
+            mHourPaint.setTypeface(burnInProtection ? NORMAL_TYPEFACE : BOLD_TYPEFACE);
+
+            mLowBitAmbient = properties.getBoolean(PROPERTY_LOW_BIT_AMBIENT, false);
+
+            Log.d(TAG, "onPropertiesChanged: burn-in protection = " + burnInProtection
+                    + ", low-bit ambient = " + mLowBitAmbient);
+
+        }
+
+        @Override
+        public void onTimeTick() {
+            super.onTimeTick();
+            Log.d(TAG, "onTimeTick: ambient = " + isInAmbientMode());
+            getTotalDistance();
+            invalidate();
+        }
+
+        @Override
+        public void onAmbientModeChanged(boolean inAmbientMode) {
+            super.onAmbientModeChanged(inAmbientMode);
+            Log.d(TAG, "onAmbientModeChanged: " + inAmbientMode);
+
+            if (mLowBitAmbient) {
+                boolean antiAlias = !inAmbientMode;;
+                mHourPaint.setAntiAlias(antiAlias);
+                mMinutePaint.setAntiAlias(antiAlias);
+                mSecondPaint.setAntiAlias(antiAlias);
+                mAmPmPaint.setAntiAlias(antiAlias);
+                mColonPaint.setAntiAlias(antiAlias);
+                mDistanceCountPaint.setAntiAlias(antiAlias);
+            }
+            invalidate();
+
+            // Whether the timer should be running depends on whether we're in ambient mode (as well
+            // as whether we're visible), so we may need to start or stop the timer.
+            updateTimer();
+        }
+
+        private String formatTwoDigitNumber(int hour) {
+            return String.format("%02d", hour);
+        }
+
+        private String getAmPmString(int amPm) {
+            return amPm == Calendar.AM ? mAmString : mPmString;
+        }
+
+        @Override
+        public void onDraw(Canvas canvas, Rect bounds) {
+            long now = System.currentTimeMillis();
+            mCalendar.setTimeInMillis(now);
+            boolean is24Hour = DateFormat.is24HourFormat(FitDistanceWatchFaceService.this);
+
+            // Draw the background.
+            canvas.drawColor(BACKGROUND_COLOR);
+
+            // Draw the hours.
+            float x = mXOffset;
+            String hourString;
+            if (is24Hour) {
+                hourString = formatTwoDigitNumber(mCalendar.get(Calendar.HOUR_OF_DAY));
+            } else {
+                int hour = mCalendar.get(Calendar.HOUR);
+                if (hour == 0) {
+                    hour = 12;
+                }
+                hourString = String.valueOf(hour);
+            }
+            canvas.drawText(hourString, x, mYOffset, mHourPaint);
+            x += mHourPaint.measureText(hourString);
+
+            // Draw first colon (between hour and minute).
+            canvas.drawText(COLON_STRING, x, mYOffset, mColonPaint);
+
+            x += mColonWidth;
+
+            // Draw the minutes.
+            String minuteString = formatTwoDigitNumber(mCalendar.get(Calendar.MINUTE));
+            canvas.drawText(minuteString, x, mYOffset, mMinutePaint);
+            x += mMinutePaint.measureText(minuteString);
+
+            // In interactive mode, draw a second colon followed by the seconds.
+            // Otherwise, if we're in 12-hour mode, draw AM/PM
+            if (!isInAmbientMode()) {
+                canvas.drawText(COLON_STRING, x, mYOffset, mColonPaint);
+
+                x += mColonWidth;
+                canvas.drawText(formatTwoDigitNumber(
+                        mCalendar.get(Calendar.SECOND)), x, mYOffset, mSecondPaint);
+            } else if (!is24Hour) {
+                x += mColonWidth;
+                canvas.drawText(getAmPmString(
+                        mCalendar.get(Calendar.AM_PM)), x, mYOffset, mAmPmPaint);
+            }
+
+            // Only render distance if there is no peek card, so they do not bleed into each other
+            // in ambient mode.
+            if (getPeekCardPosition().isEmpty()) {
+                canvas.drawText(
+                        getString(R.string.fit_distance, mDistanceTotal),
+                        mXDistanceOffset,
+                        mYOffset + mLineHeight,
+                        mDistanceCountPaint);
+            }
+        }
+
+        /**
+         * Starts the {@link #mUpdateTimeHandler} timer if it should be running and isn't currently
+         * or stops it if it shouldn't be running but currently is.
+         */
+        private void updateTimer() {
+            Log.d(TAG, "updateTimer");
+
+            mUpdateTimeHandler.removeMessages(MSG_UPDATE_TIME);
+            if (shouldUpdateTimeHandlerBeRunning()) {
+                mUpdateTimeHandler.sendEmptyMessage(MSG_UPDATE_TIME);
+            }
+        }
+
+        /**
+         * Returns whether the {@link #mUpdateTimeHandler} timer should be running. The timer should
+         * only run when we're visible and in interactive mode.
+         */
+        private boolean shouldUpdateTimeHandlerBeRunning() {
+            return isVisible() && !isInAmbientMode();
+        }
+
+        private void getTotalDistance() {
+
+            Log.d(TAG, "getTotalDistance()");
+
+            if ((mGoogleApiClient != null)
+                    && (mGoogleApiClient.isConnected())
+                    && (!mDistanceRequested)) {
+
+                mDistanceRequested = true;
+
+                PendingResult<DailyTotalResult> distanceResult =
+                        Fitness.HistoryApi.readDailyTotal(
+                                mGoogleApiClient,
+                                DataType.TYPE_DISTANCE_DELTA);
+
+                distanceResult.setResultCallback(this);
+            }
+        }
+
+        @Override
+        public void onConnected(Bundle connectionHint) {
+            Log.d(TAG, "mGoogleApiAndFitCallbacks.onConnected: " + connectionHint);
+
+            mDistanceRequested = false;
+
+            // Subscribe covers devices that do not have Google Fit installed.
+            subscribeToDistance();
+
+            getTotalDistance();
+        }
+
+        /*
+         * Subscribes to distance.
+         */
+        private void subscribeToDistance() {
+
+            if ((mGoogleApiClient != null) && (mGoogleApiClient.isConnecting())) {
+
+                Fitness.RecordingApi.subscribe(mGoogleApiClient, DataType.TYPE_DISTANCE_DELTA)
+                        .setResultCallback(new ResultCallback<Status>() {
+                            @Override
+                            public void onResult(Status status) {
+                                if (status.isSuccess()) {
+                                    if (status.getStatusCode()
+                                            == FitnessStatusCodes.SUCCESS_ALREADY_SUBSCRIBED) {
+                                        Log.i(TAG, "Existing subscription for activity detected.");
+                                    } else {
+                                        Log.i(TAG, "Successfully subscribed!");
+                                    }
+                                } else {
+                                    Log.i(TAG, "There was a problem subscribing.");
+                                }
+                            }
+                        });
+            }
+        }
+
+        @Override
+        public void onConnectionSuspended(int cause) {
+            Log.d(TAG, "mGoogleApiAndFitCallbacks.onConnectionSuspended: " + cause);
+        }
+
+        @Override
+        public void onConnectionFailed(ConnectionResult result) {
+            Log.d(TAG, "mGoogleApiAndFitCallbacks.onConnectionFailed: " + result);
+        }
+
+        @Override
+        public void onResult(DailyTotalResult dailyTotalResult) {
+            Log.d(TAG, "mGoogleApiAndFitCallbacks.onResult(): " + dailyTotalResult);
+
+            mDistanceRequested = false;
+
+            if (dailyTotalResult.getStatus().isSuccess()) {
+
+                List<DataPoint> points = dailyTotalResult.getTotal().getDataPoints();
+
+                if (!points.isEmpty()) {
+                    mDistanceTotal = points.get(0).getValue(Field.FIELD_DISTANCE).asFloat();
+                    Log.d(TAG, "distance updated: " + mDistanceTotal);
+                }
+            } else {
+                Log.e(TAG, "onResult() failed! " + dailyTotalResult.getStatus().getStatusMessage());
+            }
+        }
+    }
+}

samples/browseable/WatchFace/Wearable/src/com.example.android.wearable.watchface/FitStepsWatchFaceService.java

@@ -0,0 +1,542 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.wearable.watchface;
+
+import com.google.android.gms.common.ConnectionResult;
+import com.google.android.gms.common.api.GoogleApiClient;
+import com.google.android.gms.common.api.PendingResult;
+import com.google.android.gms.common.api.ResultCallback;
+import com.google.android.gms.common.api.Status;
+import com.google.android.gms.fitness.Fitness;
+import com.google.android.gms.fitness.FitnessStatusCodes;
+import com.google.android.gms.fitness.data.DataPoint;
+import com.google.android.gms.fitness.data.DataType;
+import com.google.android.gms.fitness.data.Field;
+import com.google.android.gms.fitness.result.DailyTotalResult;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.res.Resources;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.Paint;
+import android.graphics.Rect;
+import android.graphics.Typeface;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+import android.support.wearable.watchface.CanvasWatchFaceService;
+import android.support.wearable.watchface.WatchFaceStyle;
+import android.text.format.DateFormat;
+import android.util.Log;
+import android.view.SurfaceHolder;
+import android.view.WindowInsets;
+
+import java.util.Calendar;
+import java.util.List;
+import java.util.TimeZone;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * The step count watch face shows user's daily step total via Google Fit (matches Google Fit app).
+ * Steps are polled initially when the Google API Client successfully connects and once a minute
+ * after that via the onTimeTick callback. If you want more frequent updates, you will want to add
+ * your own  Handler.
+ *
+ * Authentication is not a requirement to request steps from Google Fit on Wear.
+ *
+ * In ambient mode, the seconds are replaced with an AM/PM indicator.
+ *
+ * On devices with low-bit ambient mode, the text is drawn without anti-aliasing. On devices which
+ * require burn-in protection, the hours are drawn in normal rather than bold.
+ *
+ */
+public class FitStepsWatchFaceService extends CanvasWatchFaceService {
+
+    private static final String TAG = "StepCountWatchFace";
+
+    private static final Typeface BOLD_TYPEFACE =
+            Typeface.create(Typeface.SANS_SERIF, Typeface.BOLD);
+    private static final Typeface NORMAL_TYPEFACE =
+            Typeface.create(Typeface.SANS_SERIF, Typeface.NORMAL);
+
+    /**
+     * Update rate in milliseconds for active mode (non-ambient).
+     */
+    private static final long ACTIVE_INTERVAL_MS = TimeUnit.SECONDS.toMillis(1);
+
+    @Override
+    public Engine onCreateEngine() {
+        return new Engine();
+    }
+
+    private class Engine extends CanvasWatchFaceService.Engine implements
+            GoogleApiClient.ConnectionCallbacks,
+            GoogleApiClient.OnConnectionFailedListener,
+            ResultCallback<DailyTotalResult> {
+
+        private static final int BACKGROUND_COLOR = Color.BLACK;
+        private static final int TEXT_HOURS_MINS_COLOR = Color.WHITE;
+        private static final int TEXT_SECONDS_COLOR = Color.GRAY;
+        private static final int TEXT_AM_PM_COLOR = Color.GRAY;
+        private static final int TEXT_COLON_COLOR = Color.GRAY;
+        private static final int TEXT_STEP_COUNT_COLOR = Color.GRAY;
+
+        private static final String COLON_STRING = ":";
+
+        private static final int MSG_UPDATE_TIME = 0;
+
+        /* Handler to update the time periodically in interactive mode. */
+        private final Handler mUpdateTimeHandler = new Handler() {
+            @Override
+            public void handleMessage(Message message) {
+                switch (message.what) {
+                    case MSG_UPDATE_TIME:
+                        if (Log.isLoggable(TAG, Log.VERBOSE)) {
+                            Log.v(TAG, "updating time");
+                        }
+                        invalidate();
+                        if (shouldUpdateTimeHandlerBeRunning()) {
+                            long timeMs = System.currentTimeMillis();
+                            long delayMs =
+                                    ACTIVE_INTERVAL_MS - (timeMs % ACTIVE_INTERVAL_MS);
+                            mUpdateTimeHandler.sendEmptyMessageDelayed(MSG_UPDATE_TIME, delayMs);
+                        }
+                        break;
+                }
+            }
+        };
+
+        /**
+         * Handles time zone and locale changes.
+         */
+        private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
+            @Override
+            public void onReceive(Context context, Intent intent) {
+                mCalendar.setTimeZone(TimeZone.getDefault());
+                invalidate();
+            }
+        };
+
+        /**
+         * Unregistering an unregistered receiver throws an exception. Keep track of the
+         * registration state to prevent that.
+         */
+        private boolean mRegisteredReceiver = false;
+
+        private Paint mHourPaint;
+        private Paint mMinutePaint;
+        private Paint mSecondPaint;
+        private Paint mAmPmPaint;
+        private Paint mColonPaint;
+        private Paint mStepCountPaint;
+
+        private float mColonWidth;
+
+        private Calendar mCalendar;
+
+        private float mXOffset;
+        private float mXStepsOffset;
+        private float mYOffset;
+        private float mLineHeight;
+
+        private String mAmString;
+        private String mPmString;
+
+
+        /**
+         * Whether the display supports fewer bits for each color in ambient mode. When true, we
+         * disable anti-aliasing in ambient mode.
+         */
+        private boolean mLowBitAmbient;
+
+        /*
+         * Google API Client used to make Google Fit requests for step data.
+         */
+        private GoogleApiClient mGoogleApiClient;
+
+        private boolean mStepsRequested;
+
+        private int mStepsTotal = 0;
+
+        @Override
+        public void onCreate(SurfaceHolder holder) {
+            if (Log.isLoggable(TAG, Log.DEBUG)) {
+                Log.d(TAG, "onCreate");
+            }
+
+            super.onCreate(holder);
+
+            mStepsRequested = false;
+            mGoogleApiClient = new GoogleApiClient.Builder(FitStepsWatchFaceService.this)
+                    .addConnectionCallbacks(this)
+                    .addOnConnectionFailedListener(this)
+                    .addApi(Fitness.HISTORY_API)
+                    .addApi(Fitness.RECORDING_API)
+                    // When user has multiple accounts, useDefaultAccount() allows Google Fit to
+                    // associated with the main account for steps. It also replaces the need for
+                    // a scope request.
+                    .useDefaultAccount()
+                    .build();
+
+            setWatchFaceStyle(new WatchFaceStyle.Builder(FitStepsWatchFaceService.this)
+                    .setCardPeekMode(WatchFaceStyle.PEEK_MODE_VARIABLE)
+                    .setBackgroundVisibility(WatchFaceStyle.BACKGROUND_VISIBILITY_INTERRUPTIVE)
+                    .setShowSystemUiTime(false)
+                    .build());
+
+            Resources resources = getResources();
+
+            mYOffset = resources.getDimension(R.dimen.fit_y_offset);
+            mLineHeight = resources.getDimension(R.dimen.fit_line_height);
+            mAmString = resources.getString(R.string.fit_am);
+            mPmString = resources.getString(R.string.fit_pm);
+
+            mHourPaint = createTextPaint(TEXT_HOURS_MINS_COLOR, BOLD_TYPEFACE);
+            mMinutePaint = createTextPaint(TEXT_HOURS_MINS_COLOR);
+            mSecondPaint = createTextPaint(TEXT_SECONDS_COLOR);
+            mAmPmPaint = createTextPaint(TEXT_AM_PM_COLOR);
+            mColonPaint = createTextPaint(TEXT_COLON_COLOR);
+            mStepCountPaint = createTextPaint(TEXT_STEP_COUNT_COLOR);
+
+            mCalendar = Calendar.getInstance();
+
+        }
+
+        @Override
+        public void onDestroy() {
+            mUpdateTimeHandler.removeMessages(MSG_UPDATE_TIME);
+            super.onDestroy();
+        }
+
+        private Paint createTextPaint(int color) {
+            return createTextPaint(color, NORMAL_TYPEFACE);
+        }
+
+        private Paint createTextPaint(int color, Typeface typeface) {
+            Paint paint = new Paint();
+            paint.setColor(color);
+            paint.setTypeface(typeface);
+            paint.setAntiAlias(true);
+            return paint;
+        }
+
+        @Override
+        public void onVisibilityChanged(boolean visible) {
+            if (Log.isLoggable(TAG, Log.DEBUG)) {
+                Log.d(TAG, "onVisibilityChanged: " + visible);
+            }
+            super.onVisibilityChanged(visible);
+
+            if (visible) {
+                mGoogleApiClient.connect();
+
+                registerReceiver();
+
+                // Update time zone and date formats, in case they changed while we weren't visible.
+                mCalendar.setTimeZone(TimeZone.getDefault());
+            } else {
+                unregisterReceiver();
+
+                if (mGoogleApiClient != null && mGoogleApiClient.isConnected()) {
+                    mGoogleApiClient.disconnect();
+                }
+            }
+
+            // Whether the timer should be running depends on whether we're visible (as well as
+            // whether we're in ambient mode), so we may need to start or stop the timer.
+            updateTimer();
+        }
+
+
+        private void registerReceiver() {
+            if (mRegisteredReceiver) {
+                return;
+            }
+            mRegisteredReceiver = true;
+            IntentFilter filter = new IntentFilter(Intent.ACTION_TIMEZONE_CHANGED);
+            FitStepsWatchFaceService.this.registerReceiver(mReceiver, filter);
+        }
+
+        private void unregisterReceiver() {
+            if (!mRegisteredReceiver) {
+                return;
+            }
+            mRegisteredReceiver = false;
+            FitStepsWatchFaceService.this.unregisterReceiver(mReceiver);
+        }
+
+        @Override
+        public void onApplyWindowInsets(WindowInsets insets) {
+            if (Log.isLoggable(TAG, Log.DEBUG)) {
+                Log.d(TAG, "onApplyWindowInsets: " + (insets.isRound() ? "round" : "square"));
+            }
+            super.onApplyWindowInsets(insets);
+
+            // Load resources that have alternate values for round watches.
+            Resources resources = FitStepsWatchFaceService.this.getResources();
+            boolean isRound = insets.isRound();
+            mXOffset = resources.getDimension(isRound
+                    ? R.dimen.fit_x_offset_round : R.dimen.fit_x_offset);
+            mXStepsOffset =  resources.getDimension(isRound
+                    ? R.dimen.fit_steps_or_distance_x_offset_round : R.dimen.fit_steps_or_distance_x_offset);
+            float textSize = resources.getDimension(isRound
+                    ? R.dimen.fit_text_size_round : R.dimen.fit_text_size);
+            float amPmSize = resources.getDimension(isRound
+                    ? R.dimen.fit_am_pm_size_round : R.dimen.fit_am_pm_size);
+
+            mHourPaint.setTextSize(textSize);
+            mMinutePaint.setTextSize(textSize);
+            mSecondPaint.setTextSize(textSize);
+            mAmPmPaint.setTextSize(amPmSize);
+            mColonPaint.setTextSize(textSize);
+            mStepCountPaint.setTextSize(resources.getDimension(R.dimen.fit_steps_or_distance_text_size));
+
+            mColonWidth = mColonPaint.measureText(COLON_STRING);
+        }
+
+        @Override
+        public void onPropertiesChanged(Bundle properties) {
+            super.onPropertiesChanged(properties);
+
+            boolean burnInProtection = properties.getBoolean(PROPERTY_BURN_IN_PROTECTION, false);
+            mHourPaint.setTypeface(burnInProtection ? NORMAL_TYPEFACE : BOLD_TYPEFACE);
+
+            mLowBitAmbient = properties.getBoolean(PROPERTY_LOW_BIT_AMBIENT, false);
+
+            if (Log.isLoggable(TAG, Log.DEBUG)) {
+                Log.d(TAG, "onPropertiesChanged: burn-in protection = " + burnInProtection
+                        + ", low-bit ambient = " + mLowBitAmbient);
+            }
+        }
+
+        @Override
+        public void onTimeTick() {
+            super.onTimeTick();
+            if (Log.isLoggable(TAG, Log.DEBUG)) {
+                Log.d(TAG, "onTimeTick: ambient = " + isInAmbientMode());
+            }
+
+            getTotalSteps();
+            invalidate();
+        }
+
+        @Override
+        public void onAmbientModeChanged(boolean inAmbientMode) {
+            super.onAmbientModeChanged(inAmbientMode);
+            if (Log.isLoggable(TAG, Log.DEBUG)) {
+                Log.d(TAG, "onAmbientModeChanged: " + inAmbientMode);
+            }
+
+            if (mLowBitAmbient) {
+                boolean antiAlias = !inAmbientMode;;
+                mHourPaint.setAntiAlias(antiAlias);
+                mMinutePaint.setAntiAlias(antiAlias);
+                mSecondPaint.setAntiAlias(antiAlias);
+                mAmPmPaint.setAntiAlias(antiAlias);
+                mColonPaint.setAntiAlias(antiAlias);
+                mStepCountPaint.setAntiAlias(antiAlias);
+            }
+            invalidate();
+
+            // Whether the timer should be running depends on whether we're in ambient mode (as well
+            // as whether we're visible), so we may need to start or stop the timer.
+            updateTimer();
+        }
+
+        private String formatTwoDigitNumber(int hour) {
+            return String.format("%02d", hour);
+        }
+
+        private String getAmPmString(int amPm) {
+            return amPm == Calendar.AM ? mAmString : mPmString;
+        }
+
+        @Override
+        public void onDraw(Canvas canvas, Rect bounds) {
+            long now = System.currentTimeMillis();
+            mCalendar.setTimeInMillis(now);
+            boolean is24Hour = DateFormat.is24HourFormat(FitStepsWatchFaceService.this);
+
+            // Draw the background.
+            canvas.drawColor(BACKGROUND_COLOR);
+
+            // Draw the hours.
+            float x = mXOffset;
+            String hourString;
+            if (is24Hour) {
+                hourString = formatTwoDigitNumber(mCalendar.get(Calendar.HOUR_OF_DAY));
+            } else {
+                int hour = mCalendar.get(Calendar.HOUR);
+                if (hour == 0) {
+                    hour = 12;
+                }
+                hourString = String.valueOf(hour);
+            }
+            canvas.drawText(hourString, x, mYOffset, mHourPaint);
+            x += mHourPaint.measureText(hourString);
+
+            // Draw first colon (between hour and minute).
+            canvas.drawText(COLON_STRING, x, mYOffset, mColonPaint);
+
+            x += mColonWidth;
+
+            // Draw the minutes.
+            String minuteString = formatTwoDigitNumber(mCalendar.get(Calendar.MINUTE));
+            canvas.drawText(minuteString, x, mYOffset, mMinutePaint);
+            x += mMinutePaint.measureText(minuteString);
+
+            // In interactive mode, draw a second colon followed by the seconds.
+            // Otherwise, if we're in 12-hour mode, draw AM/PM
+            if (!isInAmbientMode()) {
+                canvas.drawText(COLON_STRING, x, mYOffset, mColonPaint);
+
+                x += mColonWidth;
+                canvas.drawText(formatTwoDigitNumber(
+                        mCalendar.get(Calendar.SECOND)), x, mYOffset, mSecondPaint);
+            } else if (!is24Hour) {
+                x += mColonWidth;
+                canvas.drawText(getAmPmString(
+                        mCalendar.get(Calendar.AM_PM)), x, mYOffset, mAmPmPaint);
+            }
+
+            // Only render steps if there is no peek card, so they do not bleed into each other
+            // in ambient mode.
+            if (getPeekCardPosition().isEmpty()) {
+                canvas.drawText(
+                        getString(R.string.fit_steps, mStepsTotal),
+                        mXStepsOffset,
+                        mYOffset + mLineHeight,
+                        mStepCountPaint);
+            }
+        }
+
+        /**
+         * Starts the {@link #mUpdateTimeHandler} timer if it should be running and isn't currently
+         * or stops it if it shouldn't be running but currently is.
+         */
+        private void updateTimer() {
+            if (Log.isLoggable(TAG, Log.DEBUG)) {
+                Log.d(TAG, "updateTimer");
+            }
+            mUpdateTimeHandler.removeMessages(MSG_UPDATE_TIME);
+            if (shouldUpdateTimeHandlerBeRunning()) {
+                mUpdateTimeHandler.sendEmptyMessage(MSG_UPDATE_TIME);
+            }
+        }
+
+        /**
+         * Returns whether the {@link #mUpdateTimeHandler} timer should be running. The timer should
+         * only run when we're visible and in interactive mode.
+         */
+        private boolean shouldUpdateTimeHandlerBeRunning() {
+            return isVisible() && !isInAmbientMode();
+        }
+
+        private void getTotalSteps() {
+            if (Log.isLoggable(TAG, Log.DEBUG)) {
+                Log.d(TAG, "getTotalSteps()");
+            }
+
+            if ((mGoogleApiClient != null)
+                    && (mGoogleApiClient.isConnected())
+                    && (!mStepsRequested)) {
+
+                mStepsRequested = true;
+
+                PendingResult<DailyTotalResult> stepsResult =
+                        Fitness.HistoryApi.readDailyTotal(
+                                mGoogleApiClient,
+                                DataType.TYPE_STEP_COUNT_DELTA);
+
+                stepsResult.setResultCallback(this);
+            }
+        }
+
+        @Override
+        public void onConnected(Bundle connectionHint) {
+            if (Log.isLoggable(TAG, Log.DEBUG)) {
+                Log.d(TAG, "mGoogleApiAndFitCallbacks.onConnected: " + connectionHint);
+            }
+            mStepsRequested = false;
+
+            // The subscribe step covers devices that do not have Google Fit installed.
+            subscribeToSteps();
+
+            getTotalSteps();
+        }
+
+        /*
+         * Subscribes to step count (for phones that don't have Google Fit app).
+         */
+        private void subscribeToSteps() {
+            Fitness.RecordingApi.subscribe(mGoogleApiClient, DataType.TYPE_STEP_COUNT_DELTA)
+                    .setResultCallback(new ResultCallback<Status>() {
+                        @Override
+                        public void onResult(Status status) {
+                            if (status.isSuccess()) {
+                                if (status.getStatusCode()
+                                        == FitnessStatusCodes.SUCCESS_ALREADY_SUBSCRIBED) {
+                                    Log.i(TAG, "Existing subscription for activity detected.");
+                                } else {
+                                    Log.i(TAG, "Successfully subscribed!");
+                                }
+                            } else {
+                                Log.i(TAG, "There was a problem subscribing.");
+                            }
+                        }
+                    });
+        }
+
+        @Override
+        public void onConnectionSuspended(int cause) {
+            if (Log.isLoggable(TAG, Log.DEBUG)) {
+                Log.d(TAG, "mGoogleApiAndFitCallbacks.onConnectionSuspended: " + cause);
+            }
+        }
+
+        @Override
+        public void onConnectionFailed(ConnectionResult result) {
+            if (Log.isLoggable(TAG, Log.DEBUG)) {
+                Log.d(TAG, "mGoogleApiAndFitCallbacks.onConnectionFailed: " + result);
+            }
+        }
+
+        @Override
+        public void onResult(DailyTotalResult dailyTotalResult) {
+            if (Log.isLoggable(TAG, Log.DEBUG)) {
+                Log.d(TAG, "mGoogleApiAndFitCallbacks.onResult(): " + dailyTotalResult);
+            }
+
+            mStepsRequested = false;
+
+            if (dailyTotalResult.getStatus().isSuccess()) {
+
+                List<DataPoint> points = dailyTotalResult.getTotal().getDataPoints();;
+
+                if (!points.isEmpty()) {
+                    mStepsTotal = points.get(0).getValue(Field.FIELD_STEPS).asInt();
+                    Log.d(TAG, "steps updated: " + mStepsTotal);
+                }
+            } else {
+                Log.e(TAG, "onResult() failed! " + dailyTotalResult.getStatus().getStatusMessage());
+            }
+        }
+    }
+}

samples/browseable/WatchFace/_index.jd

@@ -7,7 +7,12 @@ sample.group=Wearable
             
 This sample demonstrates how to create watch faces for android wear and includes a phone app
 and a wearable app. The wearable app has a variety of watch faces including analog, digital,
-opengl, calendar, interactive, etc. It also includes a watch-side configuration example.
+opengl, calendar, steps, interactive, etc. It also includes a watch-side configuration example.
 The phone app includes a phone-side configuration example.
 
+Additional note on Steps WatchFace Sample, if the user has not installed or setup the Google Fit app
+on their phone and their Wear device has not configured the Google Fit Wear App, then you may get
+zero steps until one of the two is setup. Please note, many Wear devices configure the Google Fit
+Wear App beforehand.
+            
         </p>

samples/browseable/WatchViewStub/AndroidManifest.xml

@@ -18,7 +18,7 @@
         package="com.example.android.google.wearable.watchviewstub" >
 
     <uses-sdk android:minSdkVersion="20"
-              android:targetSdkVersion="21" />
+              android:targetSdkVersion="22" />
 
     <uses-feature android:name="android.hardware.type.watch" />
 

samples/browseable/WearSpeakerSample/AndroidManifest.xml

@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright 2015 Google Inc. All rights reserved.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+       http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.android.wearable.speaker" >
+
+    <uses-feature android:name="android.hardware.type.watch" />
+
+    <!-- the following permission is required to record audio using a microphone -->
+    <uses-permission android:name="android.permission.RECORD_AUDIO" />
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        android:theme="@android:style/Theme.DeviceDefault" >
+        <uses-library android:name="com.google.android.wearable" android:required="false" />
+        <activity
+            android:name=".MainActivity"
+            android:label="@string/app_name" >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

samples/browseable/WearSpeakerSample/_index.jd

@@ -0,0 +1,14 @@
+
+page.tags="WearSpeakerSample"
+sample.group=Wearable
+@jd:body
+
+<p>
+
+A sample that shows how you can record voice using the microphone on a wearable and
+play the recorded voice or an mp3 file, if the wearable device has a built-in speaker.
+
+This sample doesn't have any companion phone app so you need to install this directly
+on your watch (using "adb").
+
+        </p>

samples/browseable/WearSpeakerSample/res/drawable/circle.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright 2015 Google Inc. All rights reserved.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+       http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="oval" >
+    <size android:width="100dp"
+        android:height="100dp"/>
+    <stroke
+        android:width="3dp"
+        android:color="@color/circle_color"/>
+    <solid android:color="@color/circle_color"/>
+</shape>

samples/browseable/WearSpeakerSample/res/drawable/ic_audiotrack_120dp.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright 2015 Google Inc. All rights reserved.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+       http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+<vector android:height="120dp" android:viewportHeight="24.0"
+    android:viewportWidth="24.0" android:width="120dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@color/large_icons_color" android:pathData="M12,3v9.28c-0.47,-0.17 -0.97,-0.28 -1.5,-0.28C8.01,12 6,14.01 6,16.5S8.01,21 10.5,21c2.31,0 4.2,-1.75 4.45,-4H15V6h4V3h-7z"/>
+</vector>

samples/browseable/WearSpeakerSample/res/drawable/ic_audiotrack_32dp.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright 2015 Google Inc. All rights reserved.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+       http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+<vector android:height="32dp" android:viewportHeight="24.0"
+    android:viewportWidth="24.0" android:width="32dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@color/small_icons_color" android:pathData="M12,3v9.28c-0.47,-0.17 -0.97,-0.28 -1.5,-0.28C8.01,12 6,14.01 6,16.5S8.01,21 10.5,21c2.31,0 4.2,-1.75 4.45,-4H15V6h4V3h-7z"/>
+</vector>

samples/browseable/WearSpeakerSample/res/drawable/ic_mic_120dp.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright 2015 Google Inc. All rights reserved.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+       http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+<vector android:height="120dp" android:viewportHeight="24.0"
+    android:viewportWidth="24.0" android:width="120dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@color/large_icons_color" android:pathData="M12,14c1.66,0 2.99,-1.34 2.99,-3L15,5c0,-1.66 -1.34,-3 -3,-3S9,3.34 9,5v6c0,1.66 1.34,3 3,3zm5.3,-3c0,3 -2.54,5.1 -5.3,5.1S6.7,14 6.7,11H5c0,3.41 2.72,6.23 6,6.72V21h2v-3.28c3.28,-0.48 6,-3.3 6,-6.72h-1.7z"/>
+</vector>

samples/browseable/WearSpeakerSample/res/drawable/ic_mic_32dp.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright 2015 Google Inc. All rights reserved.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+       http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+<vector android:height="32dp" android:viewportHeight="24.0"
+    android:viewportWidth="24.0" android:width="32dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@color/small_icons_color" android:pathData="M12,14c1.66,0 2.99,-1.34 2.99,-3L15,5c0,-1.66 -1.34,-3 -3,-3S9,3.34 9,5v6c0,1.66 1.34,3 3,3zm5.3,-3c0,3 -2.54,5.1 -5.3,5.1S6.7,14 6.7,11H5c0,3.41 2.72,6.23 6,6.72V21h2v-3.28c3.28,-0.48 6,-3.3 6,-6.72h-1.7z"/>
+</vector>

samples/browseable/WearSpeakerSample/res/drawable/ic_play_arrow_120dp.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright 2015 Google Inc. All rights reserved.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+       http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+<vector android:height="120dp" android:viewportHeight="24.0"
+    android:viewportWidth="24.0" android:width="120dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@color/large_icons_color" android:pathData="M8,5v14l11,-7z"/>
+</vector>

samples/browseable/WearSpeakerSample/res/drawable/ic_play_arrow_32dp.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright 2015 Google Inc. All rights reserved.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+       http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+<vector android:height="32dp" android:viewportHeight="24.0"
+    android:viewportWidth="24.0" android:width="32dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@color/small_icons_color" android:pathData="M8,5v14l11,-7z"/>
+</vector>

samples/browseable/WearSpeakerSample/res/layout/main_activity.xml

@@ -0,0 +1,89 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright 2015 Google Inc. All rights reserved.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+       http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/container"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+
+    <RelativeLayout
+        android:id="@+id/container2"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:background="@color/background_color">
+
+        <View
+            android:id="@+id/circle"
+            android:layout_width="140dp"
+            android:layout_height="140dp"
+            android:layout_centerInParent="true"
+            android:background="@drawable/circle" />
+
+        <View
+            android:id="@+id/center"
+            android:layout_width="1dp"
+            android:layout_height="1dp"
+            android:layout_centerInParent="true"
+            android:visibility="invisible" />
+
+        <ImageView
+            android:id="@+id/mic"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_above="@+id/center"
+            android:layout_centerHorizontal="true"
+            android:layout_marginBottom="13dp"
+            android:src="@drawable/ic_mic_32dp" />
+
+        <ImageView
+            android:id="@+id/play"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_below="@+id/center"
+            android:layout_marginRight="13dp"
+            android:layout_marginTop="12dp"
+            android:layout_toLeftOf="@+id/center"
+            android:src="@drawable/ic_play_arrow_32dp" />
+
+        <ImageView
+            android:id="@+id/music"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_below="@+id/center"
+            android:layout_marginLeft="13dp"
+            android:layout_marginTop="12dp"
+            android:layout_toRightOf="@+id/center"
+            android:src="@drawable/ic_audiotrack_32dp" />
+
+        <ProgressBar
+            android:id="@+id/progress"
+            style="?android:attr/progressBarStyleHorizontal"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_alignStart="@+id/circle"
+            android:layout_alignEnd="@+id/circle"
+            android:layout_below="@+id/circle"
+            android:progressTint="@color/progressbar_tint"
+            android:progressBackgroundTint="@color/progressbar_background_tint"
+            android:layout_marginTop="5dp"
+            android:visibility="invisible" />
+    </RelativeLayout>
+
+    <ImageView
+        android:id="@+id/expanded"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:scaleType="center"
+        android:visibility="invisible" />
+</FrameLayout>

samples/browseable/WearSpeakerSample/res/values/colors.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright 2015 Google Inc. All rights reserved.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+       http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+<resources>
+    <color name="small_icons_color">#FFF3E0</color>
+    <color name="large_icons_color">#FFF3E0</color>
+    <color name="background_color">#FF9100</color>
+    <color name="circle_color">#E65100</color>
+    <color name="progressbar_tint">#FFD180</color>
+    <color name="progressbar_background_tint">#E65100</color>
+</resources>

samples/browseable/WearSpeakerSample/res/values/strings.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright 2015 Google Inc. All rights reserved.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+       http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+<resources>
+    <string name="app_name">Wear Speaker Sample</string>
+    <string name="exiting_for_permissions">Recording Audio permission is required, exiting now!</string>
+    <string name="no_speaker_supported">Speaker is not supported</string>
+</resources>

samples/browseable/WearSpeakerSample/src/com.example.android.wearable.speaker/MainActivity.java

@@ -0,0 +1,293 @@
+/*
+ * Copyright (C) 2015 Google Inc. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.wearable.speaker;
+
+import android.Manifest;
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.media.AudioDeviceInfo;
+import android.media.AudioManager;
+import android.media.MediaPlayer;
+import android.os.Build;
+import android.os.Bundle;
+import android.os.CountDownTimer;
+import android.support.v4.app.ActivityCompat;
+import android.support.v4.content.ContextCompat;
+import android.support.wearable.activity.WearableActivity;
+import android.util.Log;
+import android.view.View;
+import android.widget.ImageView;
+import android.widget.ProgressBar;
+import android.widget.Toast;
+
+import java.util.concurrent.TimeUnit;
+
+/**
+ * We first get the required permission to use the MIC. If it is granted, then we continue with
+ * the application and present the UI with three icons: a MIC icon (if pressed, user can record up
+ * to 10 seconds), a Play icon (if clicked, it wil playback the recorded audio file) and a music
+ * note icon (if clicked, it plays an MP3 file that is included in the app).
+ */
+public class MainActivity extends WearableActivity implements UIAnimation.UIStateListener,
+        SoundRecorder.OnVoicePlaybackStateChangedListener {
+
+    private static final String TAG = "MainActivity";
+    private static final int PERMISSIONS_REQUEST_CODE = 100;
+    private static final long COUNT_DOWN_MS = TimeUnit.SECONDS.toMillis(10);
+    private static final long MILLIS_IN_SECOND = TimeUnit.SECONDS.toMillis(1);
+    private static final String VOICE_FILE_NAME = "audiorecord.pcm";
+    private MediaPlayer mMediaPlayer;
+    private AppState mState = AppState.READY;
+    private UIAnimation.UIState mUiState = UIAnimation.UIState.HOME;
+    private SoundRecorder mSoundRecorder;
+
+    private UIAnimation mUIAnimation;
+    private ProgressBar mProgressBar;
+    private CountDownTimer mCountDownTimer;
+
+    enum AppState {
+        READY, PLAYING_VOICE, PLAYING_MUSIC, RECORDING
+    }
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.main_activity);
+        mProgressBar = (ProgressBar) findViewById(R.id.progress);
+        mProgressBar.setMax((int) (COUNT_DOWN_MS / MILLIS_IN_SECOND));
+        setAmbientEnabled();
+    }
+
+    private void setProgressBar(long progressInMillis) {
+        mProgressBar.setProgress((int) (progressInMillis / MILLIS_IN_SECOND));
+    }
+
+    @Override
+    public void onUIStateChanged(UIAnimation.UIState state) {
+        Log.d(TAG, "UI State is: " + state);
+        if (mUiState == state) {
+            return;
+        }
+        switch (state) {
+            case MUSIC_UP:
+                mState = AppState.PLAYING_MUSIC;
+                mUiState = state;
+                playMusic();
+                break;
+            case MIC_UP:
+                mState = AppState.RECORDING;
+                mUiState = state;
+                mSoundRecorder.startRecording();
+                setProgressBar(COUNT_DOWN_MS);
+                mCountDownTimer = new CountDownTimer(COUNT_DOWN_MS, MILLIS_IN_SECOND) {
+                    @Override
+                    public void onTick(long millisUntilFinished) {
+                        mProgressBar.setVisibility(View.VISIBLE);
+                        setProgressBar(millisUntilFinished);
+                        Log.d(TAG, "Time Left: " + millisUntilFinished / MILLIS_IN_SECOND);
+                    }
+
+                    @Override
+                    public void onFinish() {
+                        mProgressBar.setProgress(0);
+                        mProgressBar.setVisibility(View.INVISIBLE);
+                        mSoundRecorder.stopRecording();
+                        mUIAnimation.transitionToHome();
+                        mUiState = UIAnimation.UIState.HOME;
+                        mState = AppState.READY;
+                        mCountDownTimer = null;
+                    }
+                };
+                mCountDownTimer.start();
+                break;
+            case SOUND_UP:
+                mState = AppState.PLAYING_VOICE;
+                mUiState = state;
+                mSoundRecorder.startPlay();
+                break;
+            case HOME:
+                switch (mState) {
+                    case PLAYING_MUSIC:
+                        mState = AppState.READY;
+                        mUiState = state;
+                        stopMusic();
+                        break;
+                    case PLAYING_VOICE:
+                        mState = AppState.READY;
+                        mUiState = state;
+                        mSoundRecorder.stopPlaying();
+                        break;
+                    case RECORDING:
+                        mState = AppState.READY;
+                        mUiState = state;
+                        mSoundRecorder.stopRecording();
+                        if (mCountDownTimer != null) {
+                            mCountDownTimer.cancel();
+                            mCountDownTimer = null;
+                        }
+                        mProgressBar.setVisibility(View.INVISIBLE);
+                        setProgressBar(COUNT_DOWN_MS);
+                        break;
+                }
+                break;
+        }
+    }
+
+    /**
+     * Plays back the MP3 file embedded in the application
+     */
+    private void playMusic() {
+        if (mMediaPlayer == null) {
+            mMediaPlayer = MediaPlayer.create(this, R.raw.sound);
+            mMediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
+                @Override
+                public void onCompletion(MediaPlayer mp) {
+                    // we need to transition to the READY/Home state
+                    Log.d(TAG, "Music Finished");
+                    mUIAnimation.transitionToHome();
+                }
+            });
+        }
+        mMediaPlayer.start();
+    }
+
+    /**
+     * Stops the playback of the MP3 file.
+     */
+    private void stopMusic() {
+        if (mMediaPlayer != null) {
+            mMediaPlayer.stop();
+            mMediaPlayer.release();
+            mMediaPlayer = null;
+        }
+    }
+
+    /**
+     * Checks the permission that this app needs and if it has not been granted, it will
+     * prompt the user to grant it, otherwise it shuts down the app.
+     */
+    private void checkPermissions() {
+        boolean recordAudioPermissionGranted =
+                ContextCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO)
+                        == PackageManager.PERMISSION_GRANTED;
+
+        if (recordAudioPermissionGranted) {
+            start();
+        } else {
+            ActivityCompat.requestPermissions(this, new String[] {Manifest.permission.RECORD_AUDIO},
+                    PERMISSIONS_REQUEST_CODE);
+        }
+
+    }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode,
+            String permissions[], int[] grantResults) {
+        if (requestCode == PERMISSIONS_REQUEST_CODE) {
+            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
+                start();
+            } else {
+                // Permission has been denied before. At this point we should show a dialog to
+                // user and explain why this permission is needed and direct him to go to the
+                // Permissions settings for the app in the System settings. For this sample, we
+                // simply exit to get to the important part.
+                Toast.makeText(this, R.string.exiting_for_permissions, Toast.LENGTH_LONG).show();
+                finish();
+            }
+        }
+    }
+
+    /**
+     * Starts the main flow of the application.
+     */
+    private void start() {
+        mSoundRecorder = new SoundRecorder(this, VOICE_FILE_NAME, this);
+        int[] thumbResources = new int[] {R.id.mic, R.id.play, R.id.music};
+        ImageView[] thumbs = new ImageView[3];
+        for(int i=0; i < 3; i++) {
+            thumbs[i] = (ImageView) findViewById(thumbResources[i]);
+        }
+        View containerView = findViewById(R.id.container);
+        ImageView expandedView = (ImageView) findViewById(R.id.expanded);
+        int animationDuration = getResources().getInteger(android.R.integer.config_shortAnimTime);
+        mUIAnimation = new UIAnimation(containerView, thumbs, expandedView, animationDuration,
+                this);
+    }
+
+    @Override
+    protected void onStart() {
+        super.onStart();
+        if (speakerIsSupported()) {
+            checkPermissions();
+        } else {
+            findViewById(R.id.container2).setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    Toast.makeText(MainActivity.this, R.string.no_speaker_supported,
+                            Toast.LENGTH_SHORT).show();
+                }
+            });
+        }
+    }
+
+    @Override
+    protected void onStop() {
+        if (mSoundRecorder != null) {
+            mSoundRecorder.cleanup();
+            mSoundRecorder = null;
+        }
+        if (mCountDownTimer != null) {
+            mCountDownTimer.cancel();
+        }
+
+        if (mMediaPlayer != null) {
+            mMediaPlayer.release();
+            mMediaPlayer = null;
+        }
+        super.onStop();
+    }
+
+    @Override
+    public void onPlaybackStopped() {
+        mUIAnimation.transitionToHome();
+        mUiState = UIAnimation.UIState.HOME;
+        mState = AppState.READY;
+    }
+
+    /**
+     * Determines if the wear device has a built-in speaker and if it is supported. Speaker, even if
+     * physically present, is only supported in Android M+ on a wear device..
+     */
+    public final boolean speakerIsSupported() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            PackageManager packageManager = getPackageManager();
+            // The results from AudioManager.getDevices can't be trusted unless the device
+            // advertises FEATURE_AUDIO_OUTPUT.
+            if (!packageManager.hasSystemFeature(PackageManager.FEATURE_AUDIO_OUTPUT)) {
+                return false;
+            }
+            AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
+            AudioDeviceInfo[] devices = audioManager.getDevices(AudioManager.GET_DEVICES_OUTPUTS);
+            for (AudioDeviceInfo device : devices) {
+                if (device.getType() == AudioDeviceInfo.TYPE_BUILTIN_SPEAKER) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+}

samples/browseable/WearSpeakerSample/src/com.example.android.wearable.speaker/SoundRecorder.java

@@ -0,0 +1,263 @@
+/*
+ * Copyright (C) 2015 Google Inc. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.wearable.speaker;
+
+import android.content.Context;
+import android.media.AudioFormat;
+import android.media.AudioManager;
+import android.media.AudioRecord;
+import android.media.AudioTrack;
+import android.media.MediaRecorder;
+import android.os.AsyncTask;
+import android.os.Handler;
+import android.os.Looper;
+import android.util.Log;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+
+/**
+ * A helper class to provide methods to record audio input from the MIC to the internal storage
+ * and to playback the same recorded audio file.
+ */
+public class SoundRecorder {
+
+    private static final String TAG = "SoundRecorder";
+    private static final int RECORDING_RATE = 8000; // can go up to 44K, if needed
+    private static final int CHANNEL_IN = AudioFormat.CHANNEL_IN_MONO;
+    private static final int CHANNELS_OUT = AudioFormat.CHANNEL_OUT_MONO;
+    private static final int FORMAT = AudioFormat.ENCODING_PCM_16BIT;
+    private static int BUFFER_SIZE = AudioRecord
+            .getMinBufferSize(RECORDING_RATE, CHANNEL_IN, FORMAT);
+
+    private final String mOutputFileName;
+    private final AudioManager mAudioManager;
+    private final Handler mHandler;
+    private final Context mContext;
+    private State mState = State.IDLE;
+
+    private OnVoicePlaybackStateChangedListener mListener;
+    private AsyncTask<Void, Void, Void> mRecordingAsyncTask;
+    private AsyncTask<Void, Void, Void> mPlayingAsyncTask;
+
+    enum State {
+        IDLE, RECORDING, PLAYING
+    }
+
+    public SoundRecorder(Context context, String outputFileName,
+            OnVoicePlaybackStateChangedListener listener) {
+        mOutputFileName = outputFileName;
+        mListener = listener;
+        mAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
+        mHandler = new Handler(Looper.getMainLooper());
+        mContext = context;
+    }
+
+    /**
+     * Starts recording from the MIC.
+     */
+    public void startRecording() {
+        if (mState != State.IDLE) {
+            Log.w(TAG, "Requesting to start recording while state was not IDLE");
+            return;
+        }
+
+        mRecordingAsyncTask = new AsyncTask<Void, Void, Void>() {
+
+            private AudioRecord mAudioRecord;
+
+            @Override
+            protected void onPreExecute() {
+                mState = State.RECORDING;
+            }
+
+            @Override
+            protected Void doInBackground(Void... params) {
+                mAudioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC,
+                        RECORDING_RATE, CHANNEL_IN, FORMAT, BUFFER_SIZE * 3);
+                BufferedOutputStream bufferedOutputStream = null;
+                try {
+                    bufferedOutputStream = new BufferedOutputStream(
+                            mContext.openFileOutput(mOutputFileName, Context.MODE_PRIVATE));
+                    byte[] buffer = new byte[BUFFER_SIZE];
+                    mAudioRecord.startRecording();
+                    while (!isCancelled()) {
+                        int read = mAudioRecord.read(buffer, 0, buffer.length);
+                        bufferedOutputStream.write(buffer, 0, read);
+                    }
+                } catch (IOException | NullPointerException | IndexOutOfBoundsException e) {
+                    Log.e(TAG, "Failed to record data: " + e);
+                } finally {
+                    if (bufferedOutputStream != null) {
+                        try {
+                            bufferedOutputStream.close();
+                        } catch (IOException e) {
+                            // ignore
+                        }
+                    }
+                    mAudioRecord.release();
+                    mAudioRecord = null;
+                }
+                return null;
+            }
+
+            @Override
+            protected void onPostExecute(Void aVoid) {
+                mState = State.IDLE;
+                mRecordingAsyncTask = null;
+            }
+
+            @Override
+            protected void onCancelled() {
+                if (mState == State.RECORDING) {
+                    Log.d(TAG, "Stopping the recording ...");
+                    mState = State.IDLE;
+                } else {
+                    Log.w(TAG, "Requesting to stop recording while state was not RECORDING");
+                }
+                mRecordingAsyncTask = null;
+            }
+        };
+
+        mRecordingAsyncTask.execute();
+    }
+
+    public void stopRecording() {
+        if (mRecordingAsyncTask != null) {
+            mRecordingAsyncTask.cancel(true);
+        }
+    }
+
+    public void stopPlaying() {
+        if (mPlayingAsyncTask != null) {
+            mPlayingAsyncTask.cancel(true);
+        }
+    }
+
+    /**
+     * Starts playback of the recorded audio file.
+     */
+    public void startPlay() {
+        if (mState != State.IDLE) {
+            Log.w(TAG, "Requesting to play while state was not IDLE");
+            return;
+        }
+
+        if (!new File(mContext.getFilesDir(), mOutputFileName).exists()) {
+            // there is no recording to play
+            if (mListener != null) {
+                mHandler.post(new Runnable() {
+                    @Override
+                    public void run() {
+                        mListener.onPlaybackStopped();
+                    }
+                });
+            }
+            return;
+        }
+        final int intSize = AudioTrack.getMinBufferSize(RECORDING_RATE, CHANNELS_OUT, FORMAT);
+
+        mPlayingAsyncTask = new AsyncTask<Void, Void, Void>() {
+
+            private AudioTrack mAudioTrack;
+
+            @Override
+            protected void onPreExecute() {
+                mAudioManager.setStreamVolume(AudioManager.STREAM_MUSIC,
+                        mAudioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC), 0 /* flags */);
+                mState = State.PLAYING;
+            }
+
+            @Override
+            protected Void doInBackground(Void... params) {
+                try {
+                    mAudioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, RECORDING_RATE,
+                            CHANNELS_OUT, FORMAT, intSize, AudioTrack.MODE_STREAM);
+                    byte[] buffer = new byte[intSize * 2];
+                    FileInputStream in = null;
+                    BufferedInputStream bis = null;
+                    mAudioTrack.setVolume(AudioTrack.getMaxVolume());
+                    mAudioTrack.play();
+                    try {
+                        in = mContext.openFileInput(mOutputFileName);
+                        bis = new BufferedInputStream(in);
+                        int read;
+                        while (!isCancelled() && (read = bis.read(buffer, 0, buffer.length)) > 0) {
+                            mAudioTrack.write(buffer, 0, read);
+                        }
+                    } catch (IOException e) {
+                        Log.e(TAG, "Failed to read the sound file into a byte array", e);
+                    } finally {
+                        try {
+                            if (in != null) {
+                                in.close();
+                            }
+                            if (bis != null) {
+                                bis.close();
+                            }
+                        } catch (IOException e) { /* ignore */}
+
+                        mAudioTrack.release();
+                    }
+                } catch (IllegalStateException e) {
+                    Log.e(TAG, "Failed to start playback", e);
+                }
+                return null;
+            }
+
+            @Override
+            protected void onPostExecute(Void aVoid) {
+                cleanup();
+            }
+
+            @Override
+            protected void onCancelled() {
+                cleanup();
+            }
+
+            private void cleanup() {
+                if (mListener != null) {
+                    mListener.onPlaybackStopped();
+                }
+                mState = State.IDLE;
+                mPlayingAsyncTask = null;
+            }
+        };
+
+        mPlayingAsyncTask.execute();
+    }
+
+    public interface OnVoicePlaybackStateChangedListener {
+
+        /**
+         * Called when the playback of the audio file ends. This should be called on the UI thread.
+         */
+        void onPlaybackStopped();
+    }
+
+    /**
+     * Cleans up some resources related to {@link AudioTrack} and {@link AudioRecord}
+     */
+    public void cleanup() {
+        Log.d(TAG, "cleanup() is called");
+        stopPlaying();
+        stopRecording();
+    }
+}

samples/browseable/WearSpeakerSample/src/com.example.android.wearable.speaker/UIAnimation.java

@@ -0,0 +1,220 @@
+/*
+ * Copyright (C) 2015 Google Inc. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.wearable.speaker;
+
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+import android.animation.AnimatorSet;
+import android.animation.ObjectAnimator;
+import android.graphics.Point;
+import android.graphics.Rect;
+import android.view.View;
+import android.view.animation.DecelerateInterpolator;
+import android.widget.ImageView;
+
+/**
+ * A helper class to provide a simple animation when user selects any of the three icons on the
+ * main UI.
+ */
+public class UIAnimation {
+
+    private AnimatorSet mCurrentAnimator;
+    private final int[] mLargeDrawables = new int[]{R.drawable.ic_mic_120dp,
+            R.drawable.ic_play_arrow_120dp, R.drawable.ic_audiotrack_120dp};
+    private final ImageView[] mThumbs;
+    private ImageView expandedImageView;
+    private final View mContainerView;
+    private final int mAnimationDurationTime;
+
+    private UIStateListener mListener;
+    private UIState mState = UIState.HOME;
+
+    public UIAnimation(View containerView, ImageView[] thumbs, ImageView expandedView,
+            int animationDuration, UIStateListener listener) {
+        mContainerView = containerView;
+        mThumbs = thumbs;
+        expandedImageView = expandedView;
+        mAnimationDurationTime = animationDuration;
+        mListener = listener;
+
+        mThumbs[0].setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                zoomImageFromThumb(0);
+            }
+        });
+
+        mThumbs[1].setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                zoomImageFromThumb(1);
+            }
+        });
+
+        mThumbs[2].setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                zoomImageFromThumb(2);
+            }
+        });
+    }
+
+    private void zoomImageFromThumb(final int index) {
+        int imageResId = mLargeDrawables[index];
+        final ImageView thumbView = mThumbs[index];
+        if (mCurrentAnimator != null) {
+            return;
+        }
+
+        expandedImageView.setImageResource(imageResId);
+
+        final Rect startBounds = new Rect();
+        final Rect finalBounds = new Rect();
+        final Point globalOffset = new Point();
+        thumbView.getGlobalVisibleRect(startBounds);
+        mContainerView.getGlobalVisibleRect(finalBounds, globalOffset);
+        startBounds.offset(-globalOffset.x, -globalOffset.y);
+        finalBounds.offset(-globalOffset.x, -globalOffset.y);
+        float startScale;
+        if ((float) finalBounds.width() / finalBounds.height()
+                > (float) startBounds.width() / startBounds.height()) {
+            startScale = (float) startBounds.height() / finalBounds.height();
+            float startWidth = startScale * finalBounds.width();
+            float deltaWidth = (startWidth - startBounds.width()) / 2;
+            startBounds.left -= deltaWidth;
+            startBounds.right += deltaWidth;
+        } else {
+            startScale = (float) startBounds.width() / finalBounds.width();
+            float startHeight = startScale * finalBounds.height();
+            float deltaHeight = (startHeight - startBounds.height()) / 2;
+            startBounds.top -= deltaHeight;
+            startBounds.bottom += deltaHeight;
+        }
+
+        for(int k=0; k < 3; k++) {
+            mThumbs[k].setAlpha(0f);
+        }
+        expandedImageView.setVisibility(View.VISIBLE);
+
+        expandedImageView.setPivotX(0f);
+        expandedImageView.setPivotY(0f);
+
+        AnimatorSet zommInAnimator = new AnimatorSet();
+        zommInAnimator.play(ObjectAnimator
+                .ofFloat(expandedImageView, View.X, startBounds.left, finalBounds.left)).with(
+                ObjectAnimator.ofFloat(expandedImageView, View.Y, startBounds.top, finalBounds
+                        .top)).with(
+                ObjectAnimator.ofFloat(expandedImageView, View.SCALE_X, startScale, 1f))
+                .with(ObjectAnimator.ofFloat(expandedImageView, View.SCALE_Y, startScale, 1f));
+        zommInAnimator.setDuration(mAnimationDurationTime);
+        zommInAnimator.setInterpolator(new DecelerateInterpolator());
+        zommInAnimator.addListener(new AnimatorListenerAdapter() {
+            @Override
+            public void onAnimationEnd(Animator animation) {
+                mCurrentAnimator = null;
+                if (mListener != null) {
+                    mState = UIState.getUIState(index);
+                    mListener.onUIStateChanged(mState);
+                }
+            }
+
+            @Override
+            public void onAnimationCancel(Animator animation) {
+                mCurrentAnimator = null;
+            }
+        });
+        zommInAnimator.start();
+        mCurrentAnimator = zommInAnimator;
+
+        final float startScaleFinal = startScale;
+        expandedImageView.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                if (mCurrentAnimator != null) {
+                    return;
+                }
+                AnimatorSet zoomOutAnimator = new AnimatorSet();
+                zoomOutAnimator.play(ObjectAnimator
+                        .ofFloat(expandedImageView, View.X, startBounds.left))
+                        .with(ObjectAnimator
+                                .ofFloat(expandedImageView,
+                                        View.Y, startBounds.top))
+                        .with(ObjectAnimator
+                                .ofFloat(expandedImageView,
+                                        View.SCALE_X, startScaleFinal))
+                        .with(ObjectAnimator
+                                .ofFloat(expandedImageView,
+                                        View.SCALE_Y, startScaleFinal));
+                zoomOutAnimator.setDuration(mAnimationDurationTime);
+                zoomOutAnimator.setInterpolator(new DecelerateInterpolator());
+                zoomOutAnimator.addListener(new AnimatorListenerAdapter() {
+                    @Override
+                    public void onAnimationEnd(Animator animation) {
+                        for (int k = 0; k < 3; k++) {
+                            mThumbs[k].setAlpha(1f);
+                        }
+                        expandedImageView.setVisibility(View.GONE);
+                        mCurrentAnimator = null;
+                        if (mListener != null) {
+                            mState = UIState.HOME;
+                            mListener.onUIStateChanged(mState);
+                        }
+                    }
+
+                    @Override
+                    public void onAnimationCancel(Animator animation) {
+                        thumbView.setAlpha(1f);
+                        expandedImageView.setVisibility(View.GONE);
+                        mCurrentAnimator = null;
+                    }
+                });
+                zoomOutAnimator.start();
+                mCurrentAnimator = zoomOutAnimator;
+            }
+        });
+    }
+
+    public enum UIState {
+        MIC_UP(0), SOUND_UP(1), MUSIC_UP(2), HOME(3);
+        private int mState;
+
+        UIState(int state) {
+            mState = state;
+        }
+
+        static UIState getUIState(int state) {
+            for(UIState uiState : values()) {
+                if (uiState.mState == state) {
+                    return uiState;
+                }
+            }
+           return null;
+        }
+    }
+
+    public interface UIStateListener {
+        void onUIStateChanged(UIState state);
+    }
+
+    public void transitionToHome() {
+        if (mState == UIState.HOME) {
+            return;
+        }
+        expandedImageView.callOnClick();
+
+    }
+}