Update prebuilts for mnc-docs

am: 7e9f0673a1

Change-Id: I8d28c2cda1f5a39251f508608fec6807cb115a77

samples/browseable/AgendaData/Application/src/com.example.android.wearable.agendadata/MainActivity.java

@@ -41,8 +41,6 @@ import com.google.android.gms.common.api.ResultCallback;
 import com.google.android.gms.wearable.DataApi;
 import com.google.android.gms.wearable.DataItem;
 import com.google.android.gms.wearable.DataItemBuffer;
-import com.google.android.gms.wearable.Node;
-import com.google.android.gms.wearable.NodeApi;
 import com.google.android.gms.wearable.Wearable;
 
 /**
@@ -51,7 +49,6 @@ import com.google.android.gms.wearable.Wearable;
  * permissions as well.
  */
 public class MainActivity extends AppCompatActivity implements
-        NodeApi.NodeListener,
         ConnectionCallbacks,
         OnConnectionFailedListener,
         ActivityCompat.OnRequestPermissionsResultCallback {
@@ -66,11 +63,11 @@ public class MainActivity extends AppCompatActivity implements
     private GoogleApiClient mGoogleApiClient;
     private boolean mResolvingError = false;
 
-    private TextView mLogTextView;
-    ScrollView mScroller;
-
     private View mLayout;
 
+    private TextView mLogTextView;
+    private ScrollView mScroller;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -98,10 +95,10 @@ public class MainActivity extends AppCompatActivity implements
 
     @Override
     protected void onStop() {
-        if (mGoogleApiClient.isConnected()) {
+        if (mGoogleApiClient != null && mGoogleApiClient.isConnected()) {
-            Wearable.NodeApi.removeListener(mGoogleApiClient, this);
+            mGoogleApiClient.disconnect();
         }
-        mGoogleApiClient.disconnect();
+
         super.onStop();
     }
 
@@ -132,10 +129,6 @@ public class MainActivity extends AppCompatActivity implements
 
     }
 
-    private void pushCalendarToWear() {
-        startService(new Intent(this, CalendarQueryService.class));
-    }
-
     /*
      * Requests Calendar and Contact permissions.
      * If the permission has been denied previously, a SnackBar will prompt the user to grant the
@@ -190,7 +183,9 @@ public class MainActivity extends AppCompatActivity implements
         // END_INCLUDE(calendar_and_contact_permissions_request)
     }
 
-
+    private void pushCalendarToWear() {
+        startService(new Intent(this, CalendarQueryService.class));
+    }
 
     public void onDeleteEventsClicked(View view) {
         if (mGoogleApiClient.isConnected()) {
@@ -245,28 +240,19 @@ public class MainActivity extends AppCompatActivity implements
         }
     }
 
-    @Override
-    public void onPeerConnected(Node peer) {
-        appendLog("Device connected");
-    }
-
-    @Override
-    public void onPeerDisconnected(Node peer) {
-        appendLog("Device disconnected");
-    }
-
     @Override
     public void onConnected(Bundle connectionHint) {
         if (Log.isLoggable(TAG, Log.DEBUG)) {
             Log.d(TAG, "Connected to Google Api Service.");
         }
         mResolvingError = false;
-        Wearable.NodeApi.addListener(mGoogleApiClient, this);
     }
 
     @Override
     public void onConnectionSuspended(int cause) {
-        // Ignore
+        if (Log.isLoggable(TAG, Log.DEBUG)) {
+            Log.d(TAG, "onConnectionSuspended(): Cause id: " + cause);
+        }
     }
 
     @Override
@@ -274,9 +260,7 @@ public class MainActivity extends AppCompatActivity implements
         if (Log.isLoggable(TAG, Log.DEBUG)) {
             Log.d(TAG, "Disconnected from Google Api Service");
         }
-        if (null != Wearable.NodeApi) {
+
-            Wearable.NodeApi.removeListener(mGoogleApiClient, this);
-        }
         if (mResolvingError) {
             // Already attempting to resolve an error.
             return;
@@ -359,4 +343,4 @@ public class MainActivity extends AppCompatActivity implements
             }
         });
     }
-}
+}

samples/browseable/AgendaData/Wearable/AndroidManifest.xml

@@ -18,7 +18,7 @@
         package="com.example.android.wearable.agendadata" >
 
     <uses-sdk android:minSdkVersion="20"
-        android:targetSdkVersion="22" />
+        android:targetSdkVersion="23" />
 
     <uses-feature android:name="android.hardware.type.watch" />
 
@@ -34,7 +34,8 @@
         <service
                 android:name="com.example.android.wearable.agendadata.HomeListenerService" >
             <intent-filter>
-                <action android:name="com.google.android.gms.wearable.BIND_LISTENER" />
+                <action android:name="com.google.android.gms.wearable.DATA_CHANGED" />
+                <data android:scheme="wear" android:host="*" android:pathPrefix="/"/>
             </intent-filter>
         </service>
 

samples/browseable/AgendaData/Wearable/src/com.example.android.wearable.agendadata/Constants.java

@@ -32,4 +32,4 @@ public final class Constants {
     public static final String PROFILE_PIC = "profile_pic";
 
     public static final String EXTRA_SILENT = "silent";
-}
+}

samples/browseable/AgendaData/Wearable/src/com.example.android.wearable.agendadata/DeleteService.java

@@ -16,9 +16,6 @@
 
 package com.example.android.wearable.agendadata;
 
-import static com.example.android.wearable.agendadata.Constants.TAG;
-import static com.example.android.wearable.agendadata.Constants.EXTRA_SILENT;
-
 import android.app.IntentService;
 import android.content.Intent;
 import android.net.Uri;
@@ -26,6 +23,9 @@ import android.os.Bundle;
 import android.support.wearable.activity.ConfirmationActivity;
 import android.util.Log;
 
+import static com.example.android.wearable.agendadata.Constants.TAG;
+import static com.example.android.wearable.agendadata.Constants.EXTRA_SILENT;
+
 import com.google.android.gms.common.ConnectionResult;
 import com.google.android.gms.common.api.GoogleApiClient;
 import com.google.android.gms.wearable.DataApi;
@@ -105,14 +105,23 @@ public class DeleteService extends IntentService implements GoogleApiClient.Conn
 
     @Override
     public void onConnected(Bundle connectionHint) {
+        if (Log.isLoggable(TAG, Log.DEBUG)) {
+            Log.d(TAG, "onConnected: " + connectionHint);
+        }
     }
 
     @Override
     public void onConnectionSuspended(int cause) {
+        if (Log.isLoggable(TAG, Log.DEBUG)) {
+            Log.d(TAG, "onConnectionSuspended: " + cause);
+        }
     }
 
     @Override
     public void onConnectionFailed(ConnectionResult result) {
+        if (Log.isLoggable(TAG, Log.DEBUG)) {
+            Log.d(TAG, "onConnectionFailed: " + result);
+        }
     }
 
 }

samples/browseable/AgendaData/Wearable/src/com.example.android.wearable.agendadata/HomeListenerService.java

@@ -16,16 +16,6 @@
 
 package com.example.android.wearable.agendadata;
 
-import static com.example.android.wearable.agendadata.Constants.TAG;
-import static com.example.android.wearable.agendadata.Constants.EXTRA_SILENT;
-
-import static com.example.android.wearable.agendadata.Constants.ALL_DAY;
-import static com.example.android.wearable.agendadata.Constants.BEGIN;
-import static com.example.android.wearable.agendadata.Constants.DESCRIPTION;
-import static com.example.android.wearable.agendadata.Constants.END;
-import static com.example.android.wearable.agendadata.Constants.PROFILE_PIC;
-import static com.example.android.wearable.agendadata.Constants.TITLE;
-
 import android.app.Notification;
 import android.app.NotificationManager;
 import android.app.PendingIntent;
@@ -37,6 +27,15 @@ import android.text.TextUtils;
 import android.text.format.DateFormat;
 import android.util.Log;
 
+import static com.example.android.wearable.agendadata.Constants.ALL_DAY;
+import static com.example.android.wearable.agendadata.Constants.BEGIN;
+import static com.example.android.wearable.agendadata.Constants.DESCRIPTION;
+import static com.example.android.wearable.agendadata.Constants.EXTRA_SILENT;
+import static com.example.android.wearable.agendadata.Constants.END;
+import static com.example.android.wearable.agendadata.Constants.PROFILE_PIC;
+import static com.example.android.wearable.agendadata.Constants.TAG;
+import static com.example.android.wearable.agendadata.Constants.TITLE;
+
 import com.google.android.gms.common.api.GoogleApiClient;
 import com.google.android.gms.wearable.Asset;
 import com.google.android.gms.wearable.DataApi;
@@ -45,7 +44,6 @@ import com.google.android.gms.wearable.DataEventBuffer;
 import com.google.android.gms.wearable.DataItem;
 import com.google.android.gms.wearable.DataMap;
 import com.google.android.gms.wearable.DataMapItem;
-import com.google.android.gms.wearable.MessageEvent;
 import com.google.android.gms.wearable.Wearable;
 import com.google.android.gms.wearable.WearableListenerService;
 
@@ -63,12 +61,22 @@ public class HomeListenerService extends WearableListenerService {
     private static int sNotificationId = 1;
     private GoogleApiClient mGoogleApiClient;
 
+    @Override
+    public void onCreate() {
+        super.onCreate();
+        mGoogleApiClient = new GoogleApiClient.Builder(this.getApplicationContext())
+                .addApi(Wearable.API)
+                .build();
+        mGoogleApiClient.connect();
+    }
+
     @Override
     public void onDataChanged(DataEventBuffer dataEvents) {
         if (Log.isLoggable(TAG, Log.DEBUG)) {
             Log.d(TAG, "onDataChanged: " + dataEvents + " for " + getPackageName());
         }
         for (DataEvent event : dataEvents) {
+
             if (event.getType() == DataEvent.TYPE_DELETED) {
                 deleteDataItem(event.getDataItem());
             } else if (event.getType() == DataEvent.TYPE_CHANGED) {
@@ -77,13 +85,17 @@ public class HomeListenerService extends WearableListenerService {
         }
     }
 
-    @Override
+    /**
-    public void onCreate() {
+     * Deletes the calendar card associated with the data item.
-        super.onCreate();
+     */
-        mGoogleApiClient = new GoogleApiClient.Builder(this.getApplicationContext())
+    private void deleteDataItem(DataItem dataItem) {
-                .addApi(Wearable.API)
+        if (Log.isLoggable(TAG, Log.VERBOSE)) {
-                .build();
+            Log.v(TAG, "onDataItemDeleted:DataItem=" + dataItem.getUri());
-        mGoogleApiClient.connect();
+        }
+        Integer notificationId = sNotificationIdByDataItemUri.remove(dataItem.getUri());
+        if (notificationId != null) {
+            ((NotificationManager) getSystemService(NOTIFICATION_SERVICE)).cancel(notificationId);
+        }
     }
 
     /**
@@ -154,26 +166,4 @@ public class HomeListenerService extends WearableListenerService {
 
         sNotificationIdByDataItemUri.put(dataItem.getUri(), sNotificationId++);
     }
-
-    /**
-     * Deletes the calendar card associated with the data item.
-     */
-    private void deleteDataItem(DataItem dataItem) {
-        if (Log.isLoggable(TAG, Log.VERBOSE)) {
-            Log.v(TAG, "onDataItemDeleted:DataItem=" + dataItem.getUri());
-        }
-        Integer notificationId = sNotificationIdByDataItemUri.remove(dataItem.getUri());
-        if (notificationId != null) {
-            ((NotificationManager) getSystemService(NOTIFICATION_SERVICE)).cancel(notificationId);
-        }
-    }
-
-    @Override
-    public void onMessageReceived(MessageEvent messageEvent) {
-        if (Log.isLoggable(TAG, Log.DEBUG)) {
-            Log.d(TAG, "onMessageReceived: " + messageEvent.getPath()
-                     + " " + messageEvent.getData() + " for " + getPackageName());
-        }
-    }
-
 }

samples/browseable/BasicMediaDecoder/src/com.example.android.common.media/CameraHelper.java

@@ -36,49 +36,57 @@ public class CameraHelper {
     public static final int MEDIA_TYPE_VIDEO = 2;
 
     /**
-     * Iterate over supported camera preview sizes to see which one best fits the
+     * Iterate over supported camera video sizes to see which one best fits the
      * dimensions of the given view while maintaining the aspect ratio. If none can,
      * be lenient with the aspect ratio.
      *
-     * @param sizes Supported camera preview sizes.
+     * @param supportedVideoSizes Supported camera video sizes.
-     * @param w The width of the view.
+     * @param previewSizes Supported camera preview sizes.
-     * @param h The height of the view.
+     * @param w     The width of the view.
-     * @return Best match camera preview size to fit in the view.
+     * @param h     The height of the view.
+     * @return Best match camera video size to fit in the view.
      */
-    public static  Camera.Size getOptimalPreviewSize(List<Camera.Size> sizes, int w, int h) {
+    public static Camera.Size getOptimalVideoSize(List<Camera.Size> supportedVideoSizes,
+            List<Camera.Size> previewSizes, int w, int h) {
         // Use a very small tolerance because we want an exact match.
         final double ASPECT_TOLERANCE = 0.1;
         double targetRatio = (double) w / h;
-        if (sizes == null)
-            return null;
 
+        // Supported video sizes list might be null, it means that we are allowed to use the preview
+        // sizes
+        List<Camera.Size> videoSizes;
+        if (supportedVideoSizes != null) {
+            videoSizes = supportedVideoSizes;
+        } else {
+            videoSizes = previewSizes;
+        }
         Camera.Size optimalSize = null;
 
-        // Start with max value and refine as we iterate over available preview sizes. This is the
+        // Start with max value and refine as we iterate over available video sizes. This is the
         // minimum difference between view and camera height.
         double minDiff = Double.MAX_VALUE;
 
         // Target view height
         int targetHeight = h;
 
-        // Try to find a preview size that matches aspect ratio and the target view size.
+        // Try to find a video size that matches aspect ratio and the target view size.
         // Iterate over all available sizes and pick the largest size that can fit in the view and
         // still maintain the aspect ratio.
-        for (Camera.Size size : sizes) {
+        for (Camera.Size size : videoSizes) {
             double ratio = (double) size.width / size.height;
             if (Math.abs(ratio - targetRatio) > ASPECT_TOLERANCE)
                 continue;
-            if (Math.abs(size.height - targetHeight) < minDiff) {
+            if (Math.abs(size.height - targetHeight) < minDiff && previewSizes.contains(size)) {
                 optimalSize = size;
                 minDiff = Math.abs(size.height - targetHeight);
             }
         }
 
-        // Cannot find preview size that matches the aspect ratio, ignore the requirement
+        // Cannot find video size that matches the aspect ratio, ignore the requirement
         if (optimalSize == null) {
             minDiff = Double.MAX_VALUE;
-            for (Camera.Size size : sizes) {
+            for (Camera.Size size : videoSizes) {
-                if (Math.abs(size.height - targetHeight) < minDiff) {
+                if (Math.abs(size.height - targetHeight) < minDiff && previewSizes.contains(size)) {
                     optimalSize = size;
                     minDiff = Math.abs(size.height - targetHeight);
                 }

samples/browseable/BasicRenderScript/src/com.example.android.common.media/CameraHelper.java

@@ -36,49 +36,57 @@ public class CameraHelper {
     public static final int MEDIA_TYPE_VIDEO = 2;
 
     /**
-     * Iterate over supported camera preview sizes to see which one best fits the
+     * Iterate over supported camera video sizes to see which one best fits the
      * dimensions of the given view while maintaining the aspect ratio. If none can,
      * be lenient with the aspect ratio.
      *
-     * @param sizes Supported camera preview sizes.
+     * @param supportedVideoSizes Supported camera video sizes.
-     * @param w The width of the view.
+     * @param previewSizes Supported camera preview sizes.
-     * @param h The height of the view.
+     * @param w     The width of the view.
-     * @return Best match camera preview size to fit in the view.
+     * @param h     The height of the view.
+     * @return Best match camera video size to fit in the view.
      */
-    public static  Camera.Size getOptimalPreviewSize(List<Camera.Size> sizes, int w, int h) {
+    public static Camera.Size getOptimalVideoSize(List<Camera.Size> supportedVideoSizes,
+            List<Camera.Size> previewSizes, int w, int h) {
         // Use a very small tolerance because we want an exact match.
         final double ASPECT_TOLERANCE = 0.1;
         double targetRatio = (double) w / h;
-        if (sizes == null)
-            return null;
 
+        // Supported video sizes list might be null, it means that we are allowed to use the preview
+        // sizes
+        List<Camera.Size> videoSizes;
+        if (supportedVideoSizes != null) {
+            videoSizes = supportedVideoSizes;
+        } else {
+            videoSizes = previewSizes;
+        }
         Camera.Size optimalSize = null;
 
-        // Start with max value and refine as we iterate over available preview sizes. This is the
+        // Start with max value and refine as we iterate over available video sizes. This is the
         // minimum difference between view and camera height.
         double minDiff = Double.MAX_VALUE;
 
         // Target view height
         int targetHeight = h;
 
-        // Try to find a preview size that matches aspect ratio and the target view size.
+        // Try to find a video size that matches aspect ratio and the target view size.
         // Iterate over all available sizes and pick the largest size that can fit in the view and
         // still maintain the aspect ratio.
-        for (Camera.Size size : sizes) {
+        for (Camera.Size size : videoSizes) {
             double ratio = (double) size.width / size.height;
             if (Math.abs(ratio - targetRatio) > ASPECT_TOLERANCE)
                 continue;
-            if (Math.abs(size.height - targetHeight) < minDiff) {
+            if (Math.abs(size.height - targetHeight) < minDiff && previewSizes.contains(size)) {
                 optimalSize = size;
                 minDiff = Math.abs(size.height - targetHeight);
             }
         }
 
-        // Cannot find preview size that matches the aspect ratio, ignore the requirement
+        // Cannot find video size that matches the aspect ratio, ignore the requirement
         if (optimalSize == null) {
             minDiff = Double.MAX_VALUE;
-            for (Camera.Size size : sizes) {
+            for (Camera.Size size : videoSizes) {
-                if (Math.abs(size.height - targetHeight) < minDiff) {
+                if (Math.abs(size.height - targetHeight) < minDiff && previewSizes.contains(size)) {
                     optimalSize = size;
                     minDiff = Math.abs(size.height - targetHeight);
                 }

samples/browseable/BluetoothChat/src/com.example.android.bluetoothchat/BluetoothChatService.java

@@ -473,7 +473,7 @@ public class BluetoothChatService {
             int bytes;
 
             // Keep listening to the InputStream while connected
-            while (true) {
+            while (mState == STATE_CONNECTED) {
                 try {
                     // Read from the InputStream
                     bytes = mmInStream.read(buffer);

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

@@ -275,6 +275,11 @@ public class Camera2BasicFragment extends Fragment
      */
     private boolean mFlashSupported;
 
+    /**
+     * Orientation of the camera sensor
+     */
+    private int mSensorOrientation;
+
     /**
      * A {@link CameraCaptureSession.CaptureCallback} that handles events related to JPEG capture.
      */
@@ -515,19 +520,19 @@ public class Camera2BasicFragment extends Fragment
                 // 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 =
+                //noinspection ConstantConditions
-                        characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION);
+                mSensorOrientation = characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION);
                 boolean swappedDimensions = false;
                 switch (displayRotation) {
                     case Surface.ROTATION_0:
                     case Surface.ROTATION_180:
-                        if (sensorOrientation == 90 || sensorOrientation == 270) {
+                        if (mSensorOrientation == 90 || mSensorOrientation == 270) {
                             swappedDimensions = true;
                         }
                         break;
                     case Surface.ROTATION_90:
                     case Surface.ROTATION_270:
-                        if (sensorOrientation == 0 || sensorOrientation == 180) {
+                        if (mSensorOrientation == 0 || mSensorOrientation == 180) {
                             swappedDimensions = true;
                         }
                         break;
@@ -821,7 +826,7 @@ public class Camera2BasicFragment extends Fragment
 
             // Orientation
             int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
-            captureBuilder.set(CaptureRequest.JPEG_ORIENTATION, ORIENTATIONS.get(rotation));
+            captureBuilder.set(CaptureRequest.JPEG_ORIENTATION, getOrientation(rotation));
 
             CameraCaptureSession.CaptureCallback CaptureCallback
                     = new CameraCaptureSession.CaptureCallback() {
@@ -843,6 +848,20 @@ public class Camera2BasicFragment extends Fragment
         }
     }
 
+    /**
+     * Retrieves the JPEG orientation from the specified screen rotation.
+     *
+     * @param rotation The screen rotation.
+     * @return The JPEG orientation (one of 0, 90, 270, and 360)
+     */
+    private int getOrientation(int rotation) {
+        // Sensor orientation is 90 for most devices, or 270 for some devices (eg. Nexus 5X)
+        // We have to take that into account and rotate JPEG properly.
+        // For devices with orientation of 90, we simply return our mapping from ORIENTATIONS.
+        // For devices with orientation of 270, we need to rotate the JPEG 180 degrees.
+        return (ORIENTATIONS.get(rotation) + mSensorOrientation + 270) % 360;
+    }
+
     /**
      * Unlock the focus. This method should be called when still image capture sequence is
      * finished.

samples/browseable/Camera2Video/AndroidManifest.xml

@@ -23,6 +23,7 @@
 
     <uses-permission android:name="android.permission.CAMERA"/>
     <uses-permission android:name="android.permission.RECORD_AUDIO"/>
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
 
     <application android:allowBackup="true"
         android:label="@string/app_name"

samples/browseable/Camera2Video/src/com.example.android.camera2video/Camera2VideoFragment.java

@@ -55,9 +55,9 @@ import android.view.ViewGroup;
 import android.widget.Button;
 import android.widget.Toast;
 
-import java.io.File;
 import java.io.IOException;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.List;
@@ -67,7 +67,10 @@ import java.util.concurrent.TimeUnit;
 public class Camera2VideoFragment extends Fragment
         implements View.OnClickListener, FragmentCompat.OnRequestPermissionsResultCallback {
 
-    private static final SparseIntArray ORIENTATIONS = new SparseIntArray();
+    private static final int SENSOR_ORIENTATION_DEFAULT_DEGREES = 90;
+    private static final int SENSOR_ORIENTATION_INVERSE_DEGREES = 270;
+    private static final SparseIntArray DEFAULT_ORIENTATIONS = new SparseIntArray();
+    private static final SparseIntArray INVERSE_ORIENTATIONS = new SparseIntArray();
 
     private static final String TAG = "Camera2VideoFragment";
     private static final int REQUEST_VIDEO_PERMISSIONS = 1;
@@ -79,10 +82,17 @@ public class Camera2VideoFragment extends Fragment
     };
 
     static {
-        ORIENTATIONS.append(Surface.ROTATION_0, 90);
+        DEFAULT_ORIENTATIONS.append(Surface.ROTATION_0, 90);
-        ORIENTATIONS.append(Surface.ROTATION_90, 0);
+        DEFAULT_ORIENTATIONS.append(Surface.ROTATION_90, 0);
-        ORIENTATIONS.append(Surface.ROTATION_180, 270);
+        DEFAULT_ORIENTATIONS.append(Surface.ROTATION_180, 270);
-        ORIENTATIONS.append(Surface.ROTATION_270, 180);
+        DEFAULT_ORIENTATIONS.append(Surface.ROTATION_270, 180);
+    }
+
+    static {
+        INVERSE_ORIENTATIONS.append(Surface.ROTATION_0, 270);
+        INVERSE_ORIENTATIONS.append(Surface.ROTATION_90, 180);
+        INVERSE_ORIENTATIONS.append(Surface.ROTATION_180, 90);
+        INVERSE_ORIENTATIONS.append(Surface.ROTATION_270, 0);
     }
 
     /**
@@ -146,11 +156,6 @@ public class Camera2VideoFragment extends Fragment
      */
     private Size mVideoSize;
 
-    /**
-     * Camera preview.
-     */
-    private CaptureRequest.Builder mPreviewBuilder;
-
     /**
      * MediaRecorder
      */
@@ -210,6 +215,10 @@ public class Camera2VideoFragment extends Fragment
         }
 
     };
+    private Integer mSensorOrientation;
+    private String mNextVideoAbsolutePath;
+    private CaptureRequest.Builder mPreviewBuilder;
+    private Surface mRecorderSurface;
 
     public static Camera2VideoFragment newInstance() {
         return new Camera2VideoFragment();
@@ -425,6 +434,7 @@ public class Camera2VideoFragment extends Fragment
             CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId);
             StreamConfigurationMap map = characteristics
                     .get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
+            mSensorOrientation = characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION);
             mVideoSize = chooseVideoSize(map.getOutputSizes(MediaRecorder.class));
             mPreviewSize = chooseOptimalSize(map.getOutputSizes(SurfaceTexture.class),
                     width, height, mVideoSize);
@@ -454,6 +464,7 @@ public class Camera2VideoFragment extends Fragment
     private void closeCamera() {
         try {
             mCameraOpenCloseLock.acquire();
+            closePreviewSession();
             if (null != mCameraDevice) {
                 mCameraDevice.close();
                 mCameraDevice = null;
@@ -477,22 +488,16 @@ public class Camera2VideoFragment extends Fragment
             return;
         }
         try {
-            setUpMediaRecorder();
+            closePreviewSession();
             SurfaceTexture texture = mTextureView.getSurfaceTexture();
             assert texture != null;
             texture.setDefaultBufferSize(mPreviewSize.getWidth(), mPreviewSize.getHeight());
-            mPreviewBuilder = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_RECORD);
+            mPreviewBuilder = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
-            List<Surface> surfaces = new ArrayList<Surface>();
 
             Surface previewSurface = new Surface(texture);
-            surfaces.add(previewSurface);
             mPreviewBuilder.addTarget(previewSurface);
 
-            Surface recorderSurface = mMediaRecorder.getSurface();
+            mCameraDevice.createCaptureSession(Arrays.asList(previewSurface), new CameraCaptureSession.StateCallback() {
-            surfaces.add(recorderSurface);
-            mPreviewBuilder.addTarget(recorderSurface);
-
-            mCameraDevice.createCaptureSession(surfaces, new CameraCaptureSession.StateCallback() {
 
                 @Override
                 public void onConfigured(CameraCaptureSession cameraCaptureSession) {
@@ -510,8 +515,6 @@ public class Camera2VideoFragment extends Fragment
             }, mBackgroundHandler);
         } catch (CameraAccessException e) {
             e.printStackTrace();
-        } catch (IOException e) {
-            e.printStackTrace();
         }
     }
 
@@ -575,32 +578,96 @@ public class Camera2VideoFragment extends Fragment
         mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
         mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.SURFACE);
         mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
-        mMediaRecorder.setOutputFile(getVideoFile(activity).getAbsolutePath());
+        if (mNextVideoAbsolutePath == null || mNextVideoAbsolutePath.isEmpty()) {
+            mNextVideoAbsolutePath = getVideoFilePath(getActivity());
+        }
+        mMediaRecorder.setOutputFile(mNextVideoAbsolutePath);
         mMediaRecorder.setVideoEncodingBitRate(10000000);
         mMediaRecorder.setVideoFrameRate(30);
         mMediaRecorder.setVideoSize(mVideoSize.getWidth(), mVideoSize.getHeight());
         mMediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);
         mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
         int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
-        int orientation = ORIENTATIONS.get(rotation);
+        switch (mSensorOrientation) {
-        mMediaRecorder.setOrientationHint(orientation);
+            case SENSOR_ORIENTATION_DEFAULT_DEGREES:
+                mMediaRecorder.setOrientationHint(DEFAULT_ORIENTATIONS.get(rotation));
+                break;
+            case SENSOR_ORIENTATION_INVERSE_DEGREES:
+                mMediaRecorder.setOrientationHint(INVERSE_ORIENTATIONS.get(rotation));
+                break;
+        }
         mMediaRecorder.prepare();
     }
 
-    private File getVideoFile(Context context) {
+    private String getVideoFilePath(Context context) {
-        return new File(context.getExternalFilesDir(null), "video.mp4");
+        return context.getExternalFilesDir(null).getAbsolutePath() + "/"
+                + System.currentTimeMillis() + ".mp4";
     }
 
     private void startRecordingVideo() {
+        if (null == mCameraDevice || !mTextureView.isAvailable() || null == mPreviewSize) {
+            return;
+        }
         try {
-            // UI
+            closePreviewSession();
-            mButtonVideo.setText(R.string.stop);
+            setUpMediaRecorder();
-            mIsRecordingVideo = true;
+            SurfaceTexture texture = mTextureView.getSurfaceTexture();
+            assert texture != null;
+            texture.setDefaultBufferSize(mPreviewSize.getWidth(), mPreviewSize.getHeight());
+            mPreviewBuilder = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_RECORD);
+            List<Surface> surfaces = new ArrayList<>();
 
-            // Start recording
+            // Set up Surface for the camera preview
-            mMediaRecorder.start();
+            Surface previewSurface = new Surface(texture);
-        } catch (IllegalStateException e) {
+            surfaces.add(previewSurface);
+            mPreviewBuilder.addTarget(previewSurface);
+
+            // Set up Surface for the MediaRecorder
+            mRecorderSurface = mMediaRecorder.getSurface();
+            surfaces.add(mRecorderSurface);
+            mPreviewBuilder.addTarget(mRecorderSurface);
+
+            // Start a capture session
+            // Once the session starts, we can update the UI and start recording
+            mCameraDevice.createCaptureSession(surfaces, new CameraCaptureSession.StateCallback() {
+
+                @Override
+                public void onConfigured(@NonNull CameraCaptureSession cameraCaptureSession) {
+                    mPreviewSession = cameraCaptureSession;
+                    updatePreview();
+                    getActivity().runOnUiThread(new Runnable() {
+                        @Override
+                        public void run() {
+                            // UI
+                            mButtonVideo.setText(R.string.stop);
+                            mIsRecordingVideo = true;
+
+                            // Start recording
+                            mMediaRecorder.start();
+                        }
+                    });
+                }
+
+                @Override
+                public void onConfigureFailed(@NonNull CameraCaptureSession cameraCaptureSession) {
+                    Activity activity = getActivity();
+                    if (null != activity) {
+                        Toast.makeText(activity, "Failed", Toast.LENGTH_SHORT).show();
+                    }
+                }
+            }, mBackgroundHandler);
+        } catch (CameraAccessException e) {
             e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+    }
+
+    private void closePreviewSession() {
+        if (mPreviewSession != null) {
+            mPreviewSession.close();
+            mPreviewSession = null;
         }
     }
 
@@ -611,11 +678,14 @@ public class Camera2VideoFragment extends Fragment
         // Stop recording
         mMediaRecorder.stop();
         mMediaRecorder.reset();
+
         Activity activity = getActivity();
         if (null != activity) {
-            Toast.makeText(activity, "Video saved: " + getVideoFile(activity),
+            Toast.makeText(activity, "Video saved: " + mNextVideoAbsolutePath,
                     Toast.LENGTH_SHORT).show();
+            Log.d(TAG, "Video saved: " + mNextVideoAbsolutePath);
         }
+        mNextVideoAbsolutePath = null;
         startPreview();
     }
 
@@ -687,4 +757,4 @@ public class Camera2VideoFragment extends Fragment
 
     }
 
-}
+}

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

@@ -22,9 +22,9 @@ import android.content.Intent;
 import android.content.IntentSender;
 import android.content.pm.PackageManager;
 import android.graphics.Bitmap;
+import android.net.Uri;
 import android.os.AsyncTask;
 import android.os.Bundle;
-import android.os.Handler;
 import android.provider.MediaStore;
 import android.util.Log;
 import android.view.LayoutInflater;
@@ -41,8 +41,9 @@ 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.ResultCallback;
-import com.google.android.gms.common.data.FreezableUtils;
 import com.google.android.gms.wearable.Asset;
+import com.google.android.gms.wearable.CapabilityApi;
+import com.google.android.gms.wearable.CapabilityInfo;
 import com.google.android.gms.wearable.DataApi;
 import com.google.android.gms.wearable.DataApi.DataItemResult;
 import com.google.android.gms.wearable.DataEvent;
@@ -61,7 +62,6 @@ import java.io.IOException;
 import java.util.Collection;
 import java.util.Date;
 import java.util.HashSet;
-import java.util.List;
 import java.util.concurrent.ScheduledExecutorService;
 import java.util.concurrent.ScheduledFuture;
 import java.util.concurrent.ScheduledThreadPoolExecutor;
@@ -72,17 +72,20 @@ import java.util.concurrent.TimeUnit;
  * item every second while it is open. Also allows user to take a photo and send that as an asset
  * to the paired wearable.
  */
-public class MainActivity extends Activity implements DataApi.DataListener,
+public class MainActivity extends Activity implements
-        MessageApi.MessageListener, NodeApi.NodeListener, ConnectionCallbacks,
+        CapabilityApi.CapabilityListener,
+        MessageApi.MessageListener,
+        DataApi.DataListener,
+        ConnectionCallbacks,
         OnConnectionFailedListener {
 
     private static final String TAG = "MainActivity";
 
-    /**
+    //Request code for launching the Intent to resolve Google Play services errors.
-     * Request code for launching the Intent to resolve Google Play services errors.
-     */
     private static final int REQUEST_RESOLVE_ERROR = 1000;
 
+    private static final int REQUEST_IMAGE_CAPTURE = 1;
+
     private static final String START_ACTIVITY_PATH = "/start-activity";
     private static final String COUNT_PATH = "/count";
     private static final String IMAGE_PATH = "/image";
@@ -100,18 +103,14 @@ public class MainActivity extends Activity implements DataApi.DataListener,
     private View mStartActivityBtn;
 
     private DataItemAdapter mDataItemListAdapter;
-    private Handler mHandler;
 
     // Send DataItems.
     private ScheduledExecutorService mGeneratorExecutor;
     private ScheduledFuture<?> mDataItemGeneratorFuture;
 
-    static final int REQUEST_IMAGE_CAPTURE = 1;
-
     @Override
-    public void onCreate(Bundle b) {
+    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(b);
+        super.onCreate(savedInstanceState);
-        mHandler = new Handler();
         LOGD(TAG, "onCreate");
         mCameraSupported = getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA);
         setContentView(R.layout.main_activity);
@@ -130,15 +129,6 @@ public class MainActivity extends Activity implements DataApi.DataListener,
                 .build();
     }
 
-    @Override
-    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
-        if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
-            Bundle extras = data.getExtras();
-            mImageBitmap = (Bitmap) extras.get("data");
-            mThumbView.setImageBitmap(mImageBitmap);
-        }
-    }
-
     @Override
     protected void onStart() {
         super.onStart();
@@ -162,16 +152,25 @@ public class MainActivity extends Activity implements DataApi.DataListener,
 
     @Override
     protected void onStop() {
-        if (!mResolvingError) {
+        if (!mResolvingError && (mGoogleApiClient != null) && (mGoogleApiClient.isConnected())) {
             Wearable.DataApi.removeListener(mGoogleApiClient, this);
             Wearable.MessageApi.removeListener(mGoogleApiClient, this);
-            Wearable.NodeApi.removeListener(mGoogleApiClient, this);
+            Wearable.CapabilityApi.removeListener(mGoogleApiClient, this);
             mGoogleApiClient.disconnect();
         }
         super.onStop();
     }
 
-    @Override //ConnectionCallbacks
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
+            Bundle extras = data.getExtras();
+            mImageBitmap = (Bitmap) extras.get("data");
+            mThumbView.setImageBitmap(mImageBitmap);
+        }
+    }
+
+    @Override
     public void onConnected(Bundle connectionHint) {
         LOGD(TAG, "Google API Client was connected");
         mResolvingError = false;
@@ -179,157 +178,100 @@ public class MainActivity extends Activity implements DataApi.DataListener,
         mSendPhotoBtn.setEnabled(mCameraSupported);
         Wearable.DataApi.addListener(mGoogleApiClient, this);
         Wearable.MessageApi.addListener(mGoogleApiClient, this);
-        Wearable.NodeApi.addListener(mGoogleApiClient, this);
+        Wearable.CapabilityApi.addListener(
+                mGoogleApiClient, this, Uri.parse("wear://"), CapabilityApi.FILTER_REACHABLE);
     }
 
-    @Override //ConnectionCallbacks
+    @Override
     public void onConnectionSuspended(int cause) {
         LOGD(TAG, "Connection to Google API client was suspended");
         mStartActivityBtn.setEnabled(false);
         mSendPhotoBtn.setEnabled(false);
     }
 
-    @Override //OnConnectionFailedListener
+    @Override
     public void onConnectionFailed(ConnectionResult result) {
-        if (mResolvingError) {
+        if (!mResolvingError) {
-            // Already attempting to resolve an error.
+
-            return;
+            if (result.hasResolution()) {
-        } else if (result.hasResolution()) {
+                try {
-            try {
+                    mResolvingError = true;
-                mResolvingError = true;
+                    result.startResolutionForResult(this, REQUEST_RESOLVE_ERROR);
-                result.startResolutionForResult(this, REQUEST_RESOLVE_ERROR);
+                } catch (IntentSender.SendIntentException e) {
-            } catch (IntentSender.SendIntentException e) {
+                    // There was an error with the resolution intent. Try again.
-                // There was an error with the resolution intent. Try again.
+                    mGoogleApiClient.connect();
-                mGoogleApiClient.connect();
+                }
+            } else {
+                Log.e(TAG, "Connection to Google API client has failed");
+                mResolvingError = false;
+                mStartActivityBtn.setEnabled(false);
+                mSendPhotoBtn.setEnabled(false);
+                Wearable.DataApi.removeListener(mGoogleApiClient, this);
+                Wearable.MessageApi.removeListener(mGoogleApiClient, this);
+                Wearable.CapabilityApi.removeListener(mGoogleApiClient, this);
             }
-        } else {
-            Log.e(TAG, "Connection to Google API client has failed");
-            mResolvingError = false;
-            mStartActivityBtn.setEnabled(false);
-            mSendPhotoBtn.setEnabled(false);
-            Wearable.DataApi.removeListener(mGoogleApiClient, this);
-            Wearable.MessageApi.removeListener(mGoogleApiClient, this);
-            Wearable.NodeApi.removeListener(mGoogleApiClient, this);
         }
     }
 
-    @Override //DataListener
+    @Override
     public void onDataChanged(DataEventBuffer dataEvents) {
         LOGD(TAG, "onDataChanged: " + dataEvents);
-        // Need to freeze the dataEvents so they will exist later on the UI thread
+
-        final List<DataEvent> events = FreezableUtils.freezeIterable(dataEvents);
+        for (DataEvent event : dataEvents) {
-        runOnUiThread(new Runnable() {
+            if (event.getType() == DataEvent.TYPE_CHANGED) {
-            @Override
+                mDataItemListAdapter.add(
-            public void run() {
+                        new Event("DataItem Changed", event.getDataItem().toString()));
-                for (DataEvent event : events) {
+            } else if (event.getType() == DataEvent.TYPE_DELETED) {
-                    if (event.getType() == DataEvent.TYPE_CHANGED) {
+                mDataItemListAdapter.add(
-                        mDataItemListAdapter.add(
+                        new Event("DataItem Deleted", event.getDataItem().toString()));
-                                new Event("DataItem Changed", event.getDataItem().toString()));
-                    } else if (event.getType() == DataEvent.TYPE_DELETED) {
-                        mDataItemListAdapter.add(
-                                new Event("DataItem Deleted", event.getDataItem().toString()));
-                    }
-                }
             }
-        });
+        }
     }
 
-    @Override //MessageListener
+    @Override
     public void onMessageReceived(final MessageEvent messageEvent) {
-        LOGD(TAG, "onMessageReceived() A message from watch was received:" + messageEvent
+        LOGD(TAG, "onMessageReceived() A message from watch was received:"
-                .getRequestId() + " " + messageEvent.getPath());
+                + messageEvent.getRequestId() + " " + messageEvent.getPath());
-        mHandler.post(new Runnable() {
-            @Override
-            public void run() {
-                mDataItemListAdapter.add(new Event("Message from watch", messageEvent.toString()));
-            }
-        });
 
+        mDataItemListAdapter.add(new Event("Message from watch", messageEvent.toString()));
     }
 
-    @Override //NodeListener
+    @Override
-    public void onPeerConnected(final Node peer) {
+    public void onCapabilityChanged(final CapabilityInfo capabilityInfo) {
-        LOGD(TAG, "onPeerConnected: " + peer);
+        LOGD(TAG, "onCapabilityChanged: " + capabilityInfo);
-        mHandler.post(new Runnable() {
-            @Override
-            public void run() {
-                mDataItemListAdapter.add(new Event("Connected", peer.toString()));
-            }
-        });
 
-    }
+        mDataItemListAdapter.add(new Event("onCapabilityChanged", capabilityInfo.toString()));
-
-    @Override //NodeListener
-    public void onPeerDisconnected(final Node peer) {
-        LOGD(TAG, "onPeerDisconnected: " + peer);
-        mHandler.post(new Runnable() {
-            @Override
-            public void run() {
-                mDataItemListAdapter.add(new Event("Disconnected", peer.toString()));
-            }
-        });
     }
 
     /**
-     * A View Adapter for presenting the Event objects in a list
+     * Sets up UI components and their callback handlers.
      */
-    private static class DataItemAdapter extends ArrayAdapter<Event> {
+    private void setupViews() {
+        mSendPhotoBtn = (Button) findViewById(R.id.sendPhoto);
+        mThumbView = (ImageView) findViewById(R.id.imageView);
+        mDataItemList = (ListView) findViewById(R.id.data_item_list);
+        mStartActivityBtn = findViewById(R.id.start_wearable_activity);
+    }
 
-        private final Context mContext;
+    public void onTakePhotoClick(View view) {
+        dispatchTakePictureIntent();
+    }
 
-        public DataItemAdapter(Context context, int unusedResource) {
+    public void onSendPhotoClick(View view) {
-            super(context, unusedResource);
+        if (null != mImageBitmap && mGoogleApiClient.isConnected()) {
-            mContext = context;
+            sendPhoto(toAsset(mImageBitmap));
-        }
-
-        @Override
-        public View getView(int position, View convertView, ViewGroup parent) {
-            ViewHolder holder;
-            if (convertView == null) {
-                holder = new ViewHolder();
-                LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(
-                        Context.LAYOUT_INFLATER_SERVICE);
-                convertView = inflater.inflate(android.R.layout.two_line_list_item, null);
-                convertView.setTag(holder);
-                holder.text1 = (TextView) convertView.findViewById(android.R.id.text1);
-                holder.text2 = (TextView) convertView.findViewById(android.R.id.text2);
-            } else {
-                holder = (ViewHolder) convertView.getTag();
-            }
-            Event event = getItem(position);
-            holder.text1.setText(event.title);
-            holder.text2.setText(event.text);
-            return convertView;
-        }
-
-        private class ViewHolder {
-
-            TextView text1;
-            TextView text2;
         }
     }
 
-    private class Event {
+    /**
+     * Sends an RPC to start a fullscreen Activity on the wearable.
+     */
+    public void onStartWearableActivityClick(View view) {
+        LOGD(TAG, "Generating RPC");
 
-        String title;
+        // Trigger an AsyncTask that will query for a list of connected nodes and send a
-        String text;
+        // "start-activity" message to each connected node.
-
+        new StartWearableActivityTask().execute();
-        public Event(String title, String text) {
-            this.title = title;
-            this.text = text;
-        }
-    }
-
-    private Collection<String> getNodes() {
-        HashSet<String> results = new HashSet<>();
-        NodeApi.GetConnectedNodesResult nodes =
-                Wearable.NodeApi.getConnectedNodes(mGoogleApiClient).await();
-
-        for (Node node : nodes.getNodes()) {
-            results.add(node.getId());
-        }
-
-        return results;
     }
 
     private void sendStartActivityMessage(String node) {
@@ -347,61 +289,6 @@ public class MainActivity extends Activity implements DataApi.DataListener,
         );
     }
 
-    private class StartWearableActivityTask extends AsyncTask<Void, Void, Void> {
-
-        @Override
-        protected Void doInBackground(Void... args) {
-            Collection<String> nodes = getNodes();
-            for (String node : nodes) {
-                sendStartActivityMessage(node);
-            }
-            return null;
-        }
-    }
-
-    /**
-     * Sends an RPC to start a fullscreen Activity on the wearable.
-     */
-    public void onStartWearableActivityClick(View view) {
-        LOGD(TAG, "Generating RPC");
-
-        // Trigger an AsyncTask that will query for a list of connected nodes and send a
-        // "start-activity" message to each connected node.
-        new StartWearableActivityTask().execute();
-    }
-
-    /**
-     * Generates a DataItem based on an incrementing count.
-     */
-    private class DataItemGenerator implements Runnable {
-
-        private int count = 0;
-
-        @Override
-        public void run() {
-            PutDataMapRequest putDataMapRequest = PutDataMapRequest.create(COUNT_PATH);
-            putDataMapRequest.getDataMap().putInt(COUNT_KEY, count++);
-            putDataMapRequest.setUrgent();
-            PutDataRequest request = putDataMapRequest.asPutDataRequest();
-            request.setUrgent();
-
-            LOGD(TAG, "Generating DataItem: " + request);
-            if (!mGoogleApiClient.isConnected()) {
-                return;
-            }
-            Wearable.DataApi.putDataItem(mGoogleApiClient, request)
-                    .setResultCallback(new ResultCallback<DataItemResult>() {
-                        @Override
-                        public void onResult(DataItemResult dataItemResult) {
-                            if (!dataItemResult.getStatus().isSuccess()) {
-                                Log.e(TAG, "ERROR: failed to putDataItem, status code: "
-                                        + dataItemResult.getStatus().getStatusCode());
-                            }
-                        }
-                    });
-        }
-    }
-
     /**
      * Dispatches an {@link android.content.Intent} to take a photo. Result will be returned back
      * in onActivityResult().
@@ -437,7 +324,7 @@ public class MainActivity extends Activity implements DataApi.DataListener,
     }
 
     /**
-     * Sends the asset that was created form the photo we took by adding it to the Data Item store.
+     * Sends the asset that was created from the photo we took by adding it to the Data Item store.
      */
     private void sendPhoto(Asset asset) {
         PutDataMapRequest dataMap = PutDataMapRequest.create(IMAGE_PATH);
@@ -454,27 +341,18 @@ public class MainActivity extends Activity implements DataApi.DataListener,
                                 .isSuccess());
                     }
                 });
-
     }
 
-    public void onTakePhotoClick(View view) {
+    private Collection<String> getNodes() {
-        dispatchTakePictureIntent();
+        HashSet<String> results = new HashSet<>();
-    }
+        NodeApi.GetConnectedNodesResult nodes =
+                Wearable.NodeApi.getConnectedNodes(mGoogleApiClient).await();
 
-    public void onSendPhotoClick(View view) {
+        for (Node node : nodes.getNodes()) {
-        if (null != mImageBitmap && mGoogleApiClient.isConnected()) {
+            results.add(node.getId());
-            sendPhoto(toAsset(mImageBitmap));
         }
-    }
 
-    /**
+        return results;
-     * Sets up UI components and their callback handlers.
-     */
-    private void setupViews() {
-        mSendPhotoBtn = (Button) findViewById(R.id.sendPhoto);
-        mThumbView = (ImageView) findViewById(R.id.imageView);
-        mDataItemList = (ListView) findViewById(R.id.data_item_list);
-        mStartActivityBtn = findViewById(R.id.start_wearable_activity);
     }
 
     /**
@@ -486,4 +364,96 @@ public class MainActivity extends Activity implements DataApi.DataListener,
         }
     }
 
-}
+    /**
+     * A View Adapter for presenting the Event objects in a list
+     */
+    private static class DataItemAdapter extends ArrayAdapter<Event> {
+
+        private final Context mContext;
+
+        public DataItemAdapter(Context context, int unusedResource) {
+            super(context, unusedResource);
+            mContext = context;
+        }
+
+        @Override
+        public View getView(int position, View convertView, ViewGroup parent) {
+            ViewHolder holder;
+            if (convertView == null) {
+                holder = new ViewHolder();
+                LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(
+                        Context.LAYOUT_INFLATER_SERVICE);
+                convertView = inflater.inflate(android.R.layout.two_line_list_item, null);
+                convertView.setTag(holder);
+                holder.text1 = (TextView) convertView.findViewById(android.R.id.text1);
+                holder.text2 = (TextView) convertView.findViewById(android.R.id.text2);
+            } else {
+                holder = (ViewHolder) convertView.getTag();
+            }
+            Event event = getItem(position);
+            holder.text1.setText(event.title);
+            holder.text2.setText(event.text);
+            return convertView;
+        }
+
+        private class ViewHolder {
+            TextView text1;
+            TextView text2;
+        }
+    }
+
+    private class Event {
+
+        String title;
+        String text;
+
+        public Event(String title, String text) {
+            this.title = title;
+            this.text = text;
+        }
+    }
+
+    private class StartWearableActivityTask extends AsyncTask<Void, Void, Void> {
+
+        @Override
+        protected Void doInBackground(Void... args) {
+            Collection<String> nodes = getNodes();
+            for (String node : nodes) {
+                sendStartActivityMessage(node);
+            }
+            return null;
+        }
+    }
+
+    /**
+     * Generates a DataItem based on an incrementing count.
+     */
+    private class DataItemGenerator implements Runnable {
+
+        private int count = 0;
+
+        @Override
+        public void run() {
+            PutDataMapRequest putDataMapRequest = PutDataMapRequest.create(COUNT_PATH);
+            putDataMapRequest.getDataMap().putInt(COUNT_KEY, count++);
+
+            PutDataRequest request = putDataMapRequest.asPutDataRequest();
+            request.setUrgent();
+
+            LOGD(TAG, "Generating DataItem: " + request);
+            if (!mGoogleApiClient.isConnected()) {
+                return;
+            }
+            Wearable.DataApi.putDataItem(mGoogleApiClient, request)
+                    .setResultCallback(new ResultCallback<DataItemResult>() {
+                        @Override
+                        public void onResult(DataItemResult dataItemResult) {
+                            if (!dataItemResult.getStatus().isSuccess()) {
+                                Log.e(TAG, "ERROR: failed to putDataItem, status code: "
+                                        + dataItemResult.getStatus().getStatusCode());
+                            }
+                        }
+                    });
+        }
+    }
+}

samples/browseable/DataLayer/Wearable/AndroidManifest.xml

@@ -18,7 +18,7 @@
         package="com.example.android.wearable.datalayer" >
 
     <uses-sdk android:minSdkVersion="20"
-              android:targetSdkVersion="22" />
+              android:targetSdkVersion="23" />
 
     <uses-feature android:name="android.hardware.type.watch" />
 
@@ -35,10 +35,15 @@
         <service
                 android:name=".DataLayerListenerService" >
             <intent-filter>
-                <action android:name="com.google.android.gms.wearable.BIND_LISTENER" />
+                <!-- listeners receive events that match the action and data filters -->
+                <action android:name="com.google.android.gms.wearable.DATA_CHANGED" />
+                <data android:scheme="wear" android:host="*" android:pathPrefix="/count"/>
+            </intent-filter>
+            <intent-filter>
+                <action android:name="com.google.android.gms.wearable.MESSAGE_RECEIVED" />
+                <data android:scheme="wear" android:host="*" android:pathPrefix="/start-activity"/>
             </intent-filter>
         </service>
-
         <activity
             android:name=".MainActivity"
             android:label="@string/app_name">
@@ -52,4 +57,4 @@
             </intent-filter>
         </activity>
     </application>
-</manifest>
+</manifest>

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

@@ -25,11 +25,9 @@ import com.google.android.gms.common.api.GoogleApiClient;
 import com.google.android.gms.wearable.DataEvent;
 import com.google.android.gms.wearable.DataEventBuffer;
 import com.google.android.gms.wearable.MessageEvent;
-import com.google.android.gms.wearable.Node;
 import com.google.android.gms.wearable.Wearable;
 import com.google.android.gms.wearable.WearableListenerService;
 
-import java.util.List;
 import java.util.concurrent.TimeUnit;
 
 /**
@@ -37,7 +35,7 @@ import java.util.concurrent.TimeUnit;
  */
 public class DataLayerListenerService extends WearableListenerService {
 
-    private static final String TAG = "DataLayerListenerServic";
+    private static final String TAG = "DataLayerService";
 
     private static final String START_ACTIVITY_PATH = "/start-activity";
     private static final String DATA_ITEM_RECEIVED_PATH = "/data-item-received";
@@ -98,19 +96,9 @@ public class DataLayerListenerService extends WearableListenerService {
         }
     }
 
-    @Override
-    public void onPeerConnected(Node peer) {
-        LOGD(TAG, "onPeerConnected: " + peer);
-    }
-
-    @Override
-    public void onPeerDisconnected(Node peer) {
-        LOGD(TAG, "onPeerDisconnected: " + peer);
-    }
-
     public static void LOGD(final String tag, String message) {
         if (Log.isLoggable(tag, Log.DEBUG)) {
             Log.d(tag, message);
         }
     }
-}
+}

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

@@ -23,9 +23,9 @@ import android.app.Fragment;
 import android.app.FragmentManager;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
+import android.net.Uri;
 import android.os.AsyncTask;
 import android.os.Bundle;
-import android.os.Handler;
 import android.support.wearable.view.DotsPageIndicator;
 import android.support.wearable.view.FragmentGridPagerAdapter;
 import android.support.wearable.view.GridViewPager;
@@ -54,7 +54,6 @@ import com.google.android.gms.wearable.DataMapItem;
 import com.google.android.gms.wearable.MessageApi;
 import com.google.android.gms.wearable.MessageEvent;
 import com.google.android.gms.wearable.Node;
-import com.google.android.gms.wearable.NodeApi;
 import com.google.android.gms.wearable.Wearable;
 
 import java.io.InputStream;
@@ -78,9 +77,12 @@ import java.util.Set;
  * </li>
  * </ul>
  */
-public class MainActivity extends Activity implements ConnectionCallbacks,
+public class MainActivity extends Activity implements
-        OnConnectionFailedListener, DataApi.DataListener, MessageApi.MessageListener,
+        ConnectionCallbacks,
-        NodeApi.NodeListener {
+        OnConnectionFailedListener,
+        DataApi.DataListener,
+        MessageApi.MessageListener,
+        CapabilityApi.CapabilityListener {
 
     private static final String TAG = "MainActivity";
     private static final String CAPABILITY_1_NAME = "capability_1";
@@ -92,8 +94,8 @@ public class MainActivity extends Activity implements ConnectionCallbacks,
     private AssetFragment mAssetFragment;
 
     @Override
-    public void onCreate(Bundle b) {
+    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(b);
+        super.onCreate(savedInstanceState);
         setContentView(R.layout.main_activity);
         getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
         setupViews();
@@ -112,11 +114,14 @@ public class MainActivity extends Activity implements ConnectionCallbacks,
 
     @Override
     protected void onPause() {
+        if ((mGoogleApiClient != null) && mGoogleApiClient.isConnected()) {
+            Wearable.DataApi.removeListener(mGoogleApiClient, this);
+            Wearable.MessageApi.removeListener(mGoogleApiClient, this);
+            Wearable.CapabilityApi.removeListener(mGoogleApiClient, this);
+            mGoogleApiClient.disconnect();
+        }
+
         super.onPause();
-        Wearable.DataApi.removeListener(mGoogleApiClient, this);
-        Wearable.MessageApi.removeListener(mGoogleApiClient, this);
-        Wearable.NodeApi.removeListener(mGoogleApiClient, this);
-        mGoogleApiClient.disconnect();
     }
 
     @Override
@@ -124,7 +129,8 @@ public class MainActivity extends Activity implements ConnectionCallbacks,
         LOGD(TAG, "onConnected(): Successfully connected to Google API client");
         Wearable.DataApi.addListener(mGoogleApiClient, this);
         Wearable.MessageApi.addListener(mGoogleApiClient, this);
-        Wearable.NodeApi.addListener(mGoogleApiClient, this);
+        Wearable.CapabilityApi.addListener(
+                mGoogleApiClient, this, Uri.parse("wear://"), CapabilityApi.FILTER_REACHABLE);
     }
 
     @Override
@@ -244,13 +250,9 @@ public class MainActivity extends Activity implements ConnectionCallbacks,
     }
 
     @Override
-    public void onPeerConnected(Node node) {
+    public void onCapabilityChanged(CapabilityInfo capabilityInfo) {
-        mDataFragment.appendItem("Node Connected", node.getId());
+        LOGD(TAG, "onCapabilityChanged: " + capabilityInfo);
-    }
+        mDataFragment.appendItem("onCapabilityChanged", capabilityInfo.toString());
-
-    @Override
-    public void onPeerDisconnected(Node node) {
-        mDataFragment.appendItem("Node Disconnected", node.getId());
     }
 
     private void setupViews() {
@@ -312,7 +314,7 @@ public class MainActivity extends Activity implements ConnectionCallbacks,
         @Override
         protected Bitmap doInBackground(Asset... params) {
 
-            if(params.length > 0) {
+            if (params.length > 0) {
 
                 Asset asset = params[0];
 
@@ -334,11 +336,11 @@ public class MainActivity extends Activity implements ConnectionCallbacks,
         @Override
         protected void onPostExecute(Bitmap bitmap) {
 
-            if(bitmap != null) {
+            if (bitmap != null) {
                 LOGD(TAG, "Setting background image on second page..");
                 moveToPage(1);
                 mAssetFragment.setBackgroundImage(bitmap);
             }
         }
     }
-}
+}

samples/browseable/MediaRecorder/src/com.example.android.common.media/CameraHelper.java

@@ -36,49 +36,57 @@ public class CameraHelper {
     public static final int MEDIA_TYPE_VIDEO = 2;
 
     /**
-     * Iterate over supported camera preview sizes to see which one best fits the
+     * Iterate over supported camera video sizes to see which one best fits the
      * dimensions of the given view while maintaining the aspect ratio. If none can,
      * be lenient with the aspect ratio.
      *
-     * @param sizes Supported camera preview sizes.
+     * @param supportedVideoSizes Supported camera video sizes.
-     * @param w The width of the view.
+     * @param previewSizes Supported camera preview sizes.
-     * @param h The height of the view.
+     * @param w     The width of the view.
-     * @return Best match camera preview size to fit in the view.
+     * @param h     The height of the view.
+     * @return Best match camera video size to fit in the view.
      */
-    public static  Camera.Size getOptimalPreviewSize(List<Camera.Size> sizes, int w, int h) {
+    public static Camera.Size getOptimalVideoSize(List<Camera.Size> supportedVideoSizes,
+            List<Camera.Size> previewSizes, int w, int h) {
         // Use a very small tolerance because we want an exact match.
         final double ASPECT_TOLERANCE = 0.1;
         double targetRatio = (double) w / h;
-        if (sizes == null)
-            return null;
 
+        // Supported video sizes list might be null, it means that we are allowed to use the preview
+        // sizes
+        List<Camera.Size> videoSizes;
+        if (supportedVideoSizes != null) {
+            videoSizes = supportedVideoSizes;
+        } else {
+            videoSizes = previewSizes;
+        }
         Camera.Size optimalSize = null;
 
-        // Start with max value and refine as we iterate over available preview sizes. This is the
+        // Start with max value and refine as we iterate over available video sizes. This is the
         // minimum difference between view and camera height.
         double minDiff = Double.MAX_VALUE;
 
         // Target view height
         int targetHeight = h;
 
-        // Try to find a preview size that matches aspect ratio and the target view size.
+        // Try to find a video size that matches aspect ratio and the target view size.
         // Iterate over all available sizes and pick the largest size that can fit in the view and
         // still maintain the aspect ratio.
-        for (Camera.Size size : sizes) {
+        for (Camera.Size size : videoSizes) {
             double ratio = (double) size.width / size.height;
             if (Math.abs(ratio - targetRatio) > ASPECT_TOLERANCE)
                 continue;
-            if (Math.abs(size.height - targetHeight) < minDiff) {
+            if (Math.abs(size.height - targetHeight) < minDiff && previewSizes.contains(size)) {
                 optimalSize = size;
                 minDiff = Math.abs(size.height - targetHeight);
             }
         }
 
-        // Cannot find preview size that matches the aspect ratio, ignore the requirement
+        // Cannot find video size that matches the aspect ratio, ignore the requirement
         if (optimalSize == null) {
             minDiff = Double.MAX_VALUE;
-            for (Camera.Size size : sizes) {
+            for (Camera.Size size : videoSizes) {
-                if (Math.abs(size.height - targetHeight) < minDiff) {
+                if (Math.abs(size.height - targetHeight) < minDiff && previewSizes.contains(size)) {
                     optimalSize = size;
                     minDiff = Math.abs(size.height - targetHeight);
                 }

samples/browseable/MediaRecorder/src/com.example.android.mediarecorder/MainActivity.java

@@ -32,6 +32,7 @@ import android.widget.Button;
 
 import com.example.android.common.media.CameraHelper;
 
+import java.io.File;
 import java.io.IOException;
 import java.util.List;
 
@@ -45,6 +46,7 @@ public class MainActivity extends Activity {
     private Camera mCamera;
     private TextureView mPreview;
     private MediaRecorder mMediaRecorder;
+    private File mOutputFile;
 
     private boolean isRecording = false;
     private static final String TAG = "Recorder";
@@ -71,7 +73,15 @@ public class MainActivity extends Activity {
             // BEGIN_INCLUDE(stop_release_media_recorder)
 
             // stop recording and release camera
-            mMediaRecorder.stop();  // stop the recording
+            try {
+                mMediaRecorder.stop();  // stop the recording
+            } catch (RuntimeException e) {
+                // RuntimeException is thrown when stop() is called immediately after start().
+                // In this case the output file is not properly constructed ans should be deleted.
+                Log.d(TAG, "RuntimeException: stop() is called immediately after start()");
+                //noinspection ResultOfMethodCallIgnored
+                mOutputFile.delete();
+            }
             releaseMediaRecorder(); // release the MediaRecorder object
             mCamera.lock();         // take camera access back from MediaRecorder
 
@@ -137,8 +147,9 @@ public class MainActivity extends Activity {
         // dimensions of our preview surface.
         Camera.Parameters parameters = mCamera.getParameters();
         List<Camera.Size> mSupportedPreviewSizes = parameters.getSupportedPreviewSizes();
-        Camera.Size optimalSize = CameraHelper.getOptimalPreviewSize(mSupportedPreviewSizes,
+        List<Camera.Size> mSupportedVideoSizes = parameters.getSupportedVideoSizes();
-                mPreview.getWidth(), mPreview.getHeight());
+        Camera.Size optimalSize = CameraHelper.getOptimalVideoSize(mSupportedVideoSizes,
+                mSupportedPreviewSizes, mPreview.getWidth(), mPreview.getHeight());
 
         // Use the same size for recording profile.
         CamcorderProfile profile = CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH);
@@ -174,8 +185,11 @@ public class MainActivity extends Activity {
         mMediaRecorder.setProfile(profile);
 
         // Step 4: Set output file
-        mMediaRecorder.setOutputFile(CameraHelper.getOutputMediaFile(
+        mOutputFile = CameraHelper.getOutputMediaFile(CameraHelper.MEDIA_TYPE_VIDEO);
-                CameraHelper.MEDIA_TYPE_VIDEO).toString());
+        if (mOutputFile == null) {
+            return false;
+        }
+        mMediaRecorder.setOutputFile(mOutputFile.getPath());
         // END_INCLUDE (configure_media_recorder)
 
         // Step 5: Prepare configured MediaRecorder
@@ -227,4 +241,4 @@ public class MainActivity extends Activity {
         }
     }
 
-}
+}

samples/browseable/RuntimePermissionsWear/Application/AndroidManifest.xml

@@ -66,7 +66,8 @@
             android:enabled="true"
             android:exported="true" >
             <intent-filter>
-                <action android:name="com.google.android.gms.wearable.BIND_LISTENER" />
+                <action android:name="com.google.android.gms.wearable.MESSAGE_RECEIVED" />
+                <data android:scheme="wear" android:host="*" android:pathPrefix="/"/>
             </intent-filter>
         </service>
     </application>

samples/browseable/RuntimePermissionsWear/Wearable/AndroidManifest.xml

@@ -61,7 +61,8 @@
             android:enabled="true"
             android:exported="true" >
             <intent-filter>
-                <action android:name="com.google.android.gms.wearable.BIND_LISTENER" />
+                <action android:name="com.google.android.gms.wearable.MESSAGE_RECEIVED" />
+                <data android:scheme="wear" android:host="*" android:pathPrefix="/"/>
             </intent-filter>
         </service>
     </application>

samples/browseable/SpeedTracker/Application/AndroidManifest.xml

@@ -48,7 +48,10 @@
         </activity>
         <service android:name=".db.UpdateService">
             <intent-filter>
-                <action android:name="com.google.android.gms.wearable.BIND_LISTENER" />
+                <!-- listeners receive events that match the action and data filters -->
+                <action android:name="com.google.android.gms.wearable.DATA_CHANGED" />
+                <!-- filters by Constants.PATH. -->
+                <data android:scheme="wear" android:host="*" android:pathPrefix="/location"/>
             </intent-filter>
         </service>
     </application>

samples/browseable/SpeedTracker/Wearable/AndroidManifest.xml

@@ -18,7 +18,7 @@
           package="com.example.android.wearable.speedtracker">
 
     <uses-feature android:name="android.hardware.type.watch"/>
-    <uses-feature android:name="android.hardware.location.gps" android:required="true" />
+    <uses-feature android:name="android.hardware.location.gps" android:required="false" />
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
     <uses-permission android:name="android.permission.WAKE_LOCK" />
 

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/src/com.example.android.wearable.speedtracker/WearableMainActivity.java

@@ -330,6 +330,13 @@ public class WearableMainActivity extends WearableActivity implements
     public void onConnected(Bundle bundle) {
 
         Log.d(TAG, "onConnected()");
+        requestLocation();
+
+
+    }
+
+    private void requestLocation() {
+        Log.d(TAG, "requestLocation()");
 
         /*
          * mGpsPermissionApproved covers 23+ (M+) style permissions. If that is already approved or
@@ -464,6 +471,11 @@ public class WearableMainActivity extends WearableActivity implements
                     && (grantResults[0] == PackageManager.PERMISSION_GRANTED)) {
                 Log.i(TAG, "GPS permission granted.");
                 mGpsPermissionApproved = true;
+
+                if(mGoogleApiClient != null && mGoogleApiClient.isConnected()) {
+                    requestLocation();
+                }
+
             } else {
                 Log.i(TAG, "GPS permission NOT granted.");
                 mGpsPermissionApproved = false;

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/StorageProvider/src/com.example.android.storageprovider/MyCloudFragment.java

@@ -1,105 +0,0 @@
-/*
-* Copyright 2013 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.storageprovider;
-
-
-import android.content.SharedPreferences;
-import android.os.Bundle;
-import android.provider.DocumentsContract;
-import android.support.v4.app.Fragment;
-import android.view.Menu;
-import android.view.MenuItem;
-
-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 {
-
-    private static final String TAG = "MyCloudFragment";
-    private static final String AUTHORITY = "com.example.android.storageprovider.documents";
-    private boolean mLoggedIn = false;
-
-    @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        mLoggedIn = readLoginValue();
-
-        setHasOptionsMenu(true);
-    }
-
-    @Override
-    public void onPrepareOptionsMenu(Menu menu) {
-        super.onPrepareOptionsMenu(menu);
-        MenuItem item = menu.findItem(R.id.sample_action);
-        item.setTitle(mLoggedIn ? R.string.log_out : R.string.log_in);
-    }
-
-    @Override
-    public boolean onOptionsItemSelected(MenuItem item) {
-        if (item.getItemId() == R.id.sample_action) {
-            toggleLogin();
-            item.setTitle(mLoggedIn ? R.string.log_out : R.string.log_in);
-
-            // BEGIN_INCLUDE(notify_change)
-            // Notify the system that the status of our roots has changed.  This will trigger
-            // a call to MyCloudProvider.queryRoots() and force a refresh of the system
-            // picker UI.  It's important to call this or stale results may persist.
-            getActivity().getContentResolver().notifyChange(DocumentsContract.buildRootsUri
-                    (AUTHORITY), null, false);
-            // END_INCLUDE(notify_change)
-        }
-        return true;
-    }
-
-    /**
-     * Dummy function to change the user's authorization status.
-     */
-    private void toggleLogin() {
-        // Replace this with your standard method of authentication to determine if your app
-        // should make the user's documents available.
-        mLoggedIn = !mLoggedIn;
-        writeLoginValue(mLoggedIn);
-        Log.i(TAG, getString(mLoggedIn ? R.string.logged_in_info : R.string.logged_out_info));
-    }
-
-    /**
-     * Dummy function to save whether the user is logged in.
-     */
-    private void writeLoginValue(boolean loggedIn) {
-        final SharedPreferences sharedPreferences =
-                getActivity().getSharedPreferences(getString(R.string.app_name),
-                        getActivity().MODE_PRIVATE);
-        sharedPreferences.edit().putBoolean(getString(R.string.key_logged_in), loggedIn).commit();
-    }
-
-    /**
-     * Dummy function to determine whether the user is logged in.
-     */
-    private boolean readLoginValue() {
-        final SharedPreferences sharedPreferences =
-                getActivity().getSharedPreferences(getString(R.string.app_name),
-                        getActivity().MODE_PRIVATE);
-        return sharedPreferences.getBoolean(getString(R.string.key_logged_in), false);
-    }
-
-}
-
-

samples/browseable/SynchronizedNotifications/Application/AndroidManifest.xml

@@ -42,8 +42,10 @@
         </activity>
         <service android:name=".DismissListener">
             <intent-filter>
-                <action
+                <!-- listeners receive events that match the action and data filters -->
-                    android:name="com.google.android.gms.wearable.BIND_LISTENER" />
+                <action android:name="com.google.android.gms.wearable.DATA_CHANGED" />
+                <!-- filters by Constants.BOTH_PATH ('/both') -->
+                <data android:scheme="wear" android:host="*" android:pathPrefix="/both"/>
             </intent-filter>
             <intent-filter>
                 <action

samples/browseable/SynchronizedNotifications/Wearable/AndroidManifest.xml

@@ -41,8 +41,13 @@
         </activity>
         <service android:name=".NotificationUpdateService">
             <intent-filter>
-                <action
+                <!-- listeners receive events that match the action and data filters -->
-                    android:name="com.google.android.gms.wearable.BIND_LISTENER" />
+                <action android:name="com.google.android.gms.wearable.DATA_CHANGED" />
+
+                <!-- filters by Constants.BOTH_PATH ('/both') and
+                Constants.WATCH_ONLY_PATH ('/watch-only') -->
+                <data android:scheme="wear" android:host="*" android:pathPrefix="/both"/>
+                <data android:scheme="wear" android:host="*" android:pathPrefix="/watch-only"/>;
             </intent-filter>
             <intent-filter>
                 <action

samples/browseable/WatchFace/Wearable/AndroidManifest.xml

@@ -132,6 +132,42 @@
                 <category android:name="com.google.android.wearable.watchface.category.WATCH_FACE" />
             </intent-filter>
         </service>
+
+        <service
+            android:name=".ComplicationSimpleWatchFaceService"
+            android:enabled="true"
+            android:label="@string/complication_simple"
+            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_complication_simple"/>
+            <meta-data
+                android:name="com.google.android.wearable.watchface.preview_circular"
+                android:resource="@drawable/preview_complication_simple"/>
+            <meta-data
+                android:name="com.google.android.wearable.watchface.wearableConfigurationAction"
+                android:value="com.example.android.wearable.watchface.CONFIG_COMPLICATION_SIMPLE"/>
+
+            <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=".ComplicationSimpleConfigActivity"
+            android:label="@string/complication_simple">
+            <intent-filter>
+                <action android:name="com.example.android.wearable.watchface.CONFIG_COMPLICATION_SIMPLE"/>
+
+                <category android:name="com.google.android.wearable.watchface.category.WEARABLE_CONFIGURATION"/>
+                <category android:name="android.intent.category.DEFAULT"/>
+            </intent-filter>
+        </activity>
+
         <service
             android:name=".InteractiveWatchFaceService"
             android:label="@string/interactive_name"
@@ -218,7 +254,8 @@
         </service>
         <service android:name=".DigitalWatchFaceConfigListenerService" >
             <intent-filter>
-                <action android:name="com.google.android.gms.wearable.BIND_LISTENER" />
+                <action android:name="com.google.android.gms.wearable.MESSAGE_RECEIVED" />
+                <data android:scheme="wear" android:host="*" android:pathPrefix="/"/>
             </intent-filter>
         </service>
         <service
@@ -269,6 +306,35 @@
             android:name=".CalendarWatchFacePermissionActivity"
             android:label="@string/title_activity_calendar_watch_face_permission" >
         </activity>
+
+        <service
+            android:name=".provider.RandomNumberProviderService"
+            android:label="@string/complications_provider_random_number"
+            android:icon="@drawable/ic_launcher">
+
+            <intent-filter>
+                <action android:name="android.support.wearable.complications.ACTION_COMPLICATION_UPDATE_REQUEST"/>
+            </intent-filter>
+
+            <meta-data
+                android:name="android.support.wearable.complications.SUPPORTED_TYPES"
+                android:value="RANGED_VALUE,SHORT_TEXT,LONG_TEXT"/>
+            <!--
+            When your complication data provider is active, UPDATE_PERIOD_SECONDS specifies how
+            often you want the system to check for updates to the data. In this case, the time is
+            specified to a relatively short 120 seconds, so we can observe the result of this code
+            lab. In everyday use, developers should consider intervals in the order of minutes.
+            Also, remember that this is only a guidance for the system. Android Wear may update less
+            frequently.
+
+            If your app needs to push updates instead of updating on a regular schedule, you should
+            set this value to 0 and use ProviderUpdateRequester.requestUpdate() to trigger an update
+            request when you need one.
+            -->
+            <meta-data
+                android:name="android.support.wearable.complications.UPDATE_PERIOD_SECONDS"
+                android:value="120"/>
+        </service>
     </application>
 
 </manifest>

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

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2016 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.
+  -->
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:background="@color/dark_grey"
+    android:paddingTop="4dp">
+
+    <TextView
+        android:id="@+id/header"
+        android:layout_width="match_parent"
+        android:gravity="center"
+        android:text="@string/complication_simple_config_name"
+        android:textSize="20sp"
+        android:layout_height="wrap_content"/>
+
+    <android.support.wearable.view.WearableListView
+        android:id="@+id/wearable_list"
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent">
+    </android.support.wearable.view.WearableListView>
+</LinearLayout>

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

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2016 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.
+  -->
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:orientation="horizontal"
+              android:layout_width="match_parent"
+              android:layout_height="wrap_content"
+              android:layout_gravity="center">
+    <ImageView
+        android:id="@+id/icon"
+        android:layout_width="wrap_content"
+        android:layout_height="match_parent"/>
+
+    <TextView
+        android:id="@+id/name"
+        android:layout_width="wrap_content"
+        android:layout_height="match_parent"
+        android:gravity="center"
+        android:textColor="@color/white"
+        android:textSize="18sp"/>
+</LinearLayout>

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

@@ -0,0 +1,26 @@
+<?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.
+-->
+<resources>
+    <string-array name="complication_simple_names">
+        <item>Left dial</item>
+        <item>Right dial</item>
+    </string-array>
+    <array name="complication_simple_icons">
+        <item>@drawable/complications_left_dial</item>
+        <item>@drawable/complications_right_dial</item>
+    </array>
+</resources>

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

@@ -18,6 +18,7 @@
     <string name="opengl_name">Sample OpenGL</string>
     <string name="interactive_name">Sample Interactive</string>
     <string name="analog_name">Sample Analog</string>
+    <string name="complication_simple">Sample Complication Simple</string>
     <string name="sweep_name">Sample Sweep</string>
     <string name="card_bounds_name">Sample Card Bounds</string>
     <string name="digital_name">Sample Digital</string>
@@ -42,6 +43,9 @@
     <string name="title_activity_calendar_watch_face_permission">Calendar Permission Activity</string>
     <string name="calendar_permission_text">WatchFace requires Calendar access.</string>
 
+    <string name="complication_simple_config_name">Configuration</string>
+    <string name="complications_provider_random_number">Random Number</string>
+
     <!-- TODO: this should be shared (needs covering all the samples with Gradle build model) -->
     <string name="color_black">Black</string>
     <string name="color_blue">Blue</string>

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

@@ -0,0 +1,191 @@
+/*
+ * 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.app.Activity;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.content.res.TypedArray;
+import android.graphics.drawable.Drawable;
+import android.os.Bundle;
+import android.support.wearable.complications.ProviderChooserIntent;
+import android.support.wearable.view.WearableListView;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * The watch-side config activity for {@link ComplicationSimpleWatchFaceService}, which
+ * allows for setting complications on the left and right of watch face.
+ */
+public class ComplicationSimpleConfigActivity extends Activity implements
+        WearableListView.ClickListener {
+
+    private static final String TAG = "CompSimpleConfig";
+
+    private static final int PROVIDER_CHOOSER_REQUEST_CODE = 1;
+
+    private WearableListView mWearableConfigListView;
+    private ConfigurationAdapter mAdapter;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_complication_simple_config);
+
+        mAdapter = new ConfigurationAdapter(getApplicationContext(), getComplicationItems());
+
+        mWearableConfigListView = (WearableListView) findViewById(R.id.wearable_list);
+        mWearableConfigListView.setAdapter(mAdapter);
+        mWearableConfigListView.setClickListener(this);
+    }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        if (requestCode == PROVIDER_CHOOSER_REQUEST_CODE
+                && resultCode == RESULT_OK) {
+            finish();
+        }
+    }
+
+    @Override
+    public void onClick(WearableListView.ViewHolder viewHolder) {
+        if (Log.isLoggable(TAG, Log.DEBUG)) {
+            Log.d(TAG, "onClick()");
+        }
+
+        Integer tag = (Integer) viewHolder.itemView.getTag();
+        ComplicationItem complicationItem = mAdapter.getItem(tag);
+
+        startActivityForResult(ProviderChooserIntent.createProviderChooserIntent(
+                complicationItem.watchFace,
+                complicationItem.complicationId,
+                complicationItem.supportedTypes), PROVIDER_CHOOSER_REQUEST_CODE);
+    }
+
+    private List<ComplicationItem> getComplicationItems() {
+        ComponentName watchFace = new ComponentName(
+                getApplicationContext(), ComplicationSimpleWatchFaceService.class);
+
+        String[] complicationNames =
+                getResources().getStringArray(R.array.complication_simple_names);
+
+        int[] complicationIds = ComplicationSimpleWatchFaceService.COMPLICATION_IDS;
+
+        TypedArray icons = getResources().obtainTypedArray(R.array.complication_simple_icons);
+
+        List<ComplicationItem> items = new ArrayList<>();
+        for (int i = 0; i < complicationIds.length; i++) {
+            items.add(new ComplicationItem(watchFace,
+                    complicationIds[i],
+                    ComplicationSimpleWatchFaceService.COMPLICATION_SUPPORTED_TYPES[i],
+                    icons.getDrawable(i),
+                    complicationNames[i]));
+        }
+        return items;
+    }
+
+    @Override
+    public void onTopEmptyRegionClick() {
+        if (Log.isLoggable(TAG, Log.DEBUG)) {
+            Log.d(TAG, "onTopEmptyRegionClick()");
+        }
+    }
+
+    /*
+     * Inner class representing items of the ConfigurationAdapter (WearableListView.Adapter) class.
+     */
+    private final class ComplicationItem {
+        ComponentName watchFace;
+        int complicationId;
+        int[] supportedTypes;
+        Drawable icon;
+        String title;
+
+        public ComplicationItem(ComponentName watchFace, int complicationId, int[] supportedTypes,
+                                Drawable icon, String title) {
+            this.watchFace = watchFace;
+            this.complicationId = complicationId;
+            this.supportedTypes = supportedTypes;
+            this.icon = icon;
+            this.title = title;
+        }
+    }
+
+    private static class ConfigurationAdapter extends WearableListView.Adapter {
+
+        private Context mContext;
+        private final LayoutInflater mInflater;
+        private List<ComplicationItem> mItems;
+
+
+        public ConfigurationAdapter (Context context, List<ComplicationItem> items) {
+            mContext = context;
+            mInflater = LayoutInflater.from(mContext);
+            mItems = items;
+        }
+
+        // Provides a reference to the type of views you're using
+        public static class ItemViewHolder extends WearableListView.ViewHolder {
+            private ImageView iconImageView;
+            private TextView textView;
+            public ItemViewHolder(View itemView) {
+                super(itemView);
+                iconImageView = (ImageView) itemView.findViewById(R.id.icon);
+                textView = (TextView) itemView.findViewById(R.id.name);
+            }
+        }
+
+        @Override
+        public WearableListView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+
+            // Inflate custom layout for list items.
+            return new ItemViewHolder(
+                    mInflater.inflate(R.layout.activity_complication_simple_list_item, null));
+        }
+
+        @Override
+        public void onBindViewHolder(WearableListView.ViewHolder holder, int position) {
+
+            ItemViewHolder itemHolder = (ItemViewHolder) holder;
+
+            ImageView imageView = itemHolder.iconImageView;
+            imageView.setImageDrawable(mItems.get(position).icon);
+
+            TextView textView = itemHolder.textView;
+            textView.setText(mItems.get(position).title);
+
+            holder.itemView.setTag(position);
+        }
+
+        @Override
+        public int getItemCount() {
+            return mItems.size();
+        }
+
+        public ComplicationItem getItem(int position) {
+            return mItems.get(position);
+        }
+    }
+
+}

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

@@ -0,0 +1,744 @@
+/*
+ * 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.app.PendingIntent;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.ColorMatrix;
+import android.graphics.ColorMatrixColorFilter;
+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.v7.graphics.Palette;
+import android.support.wearable.complications.ComplicationData;
+import android.support.wearable.complications.ComplicationText;
+import android.support.wearable.watchface.CanvasWatchFaceService;
+import android.support.wearable.watchface.WatchFaceService;
+import android.support.wearable.watchface.WatchFaceStyle;
+import android.text.TextUtils;
+import android.util.Log;
+import android.util.SparseArray;
+import android.view.SurfaceHolder;
+
+import java.util.Calendar;
+import java.util.TimeZone;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Demonstrates two simple complications in a watch face.
+ */
+public class ComplicationSimpleWatchFaceService extends CanvasWatchFaceService {
+    private static final String TAG = "SimpleComplicationWF";
+
+    // Unique IDs for each complication.
+    private static final int LEFT_DIAL_COMPLICATION = 0;
+    private static final int RIGHT_DIAL_COMPLICATION = 1;
+
+    // Left and right complication IDs as array for Complication API.
+    public static final int[] COMPLICATION_IDS = {LEFT_DIAL_COMPLICATION, RIGHT_DIAL_COMPLICATION};
+
+    // Left and right dial supported types.
+    public static final int[][] COMPLICATION_SUPPORTED_TYPES = {
+            {ComplicationData.TYPE_SHORT_TEXT},
+            {ComplicationData.TYPE_SHORT_TEXT}
+    };
+
+    /*
+     * Update rate in milliseconds for interactive mode. We update once a second to advance the
+     * second hand.
+     */
+    private static final long INTERACTIVE_UPDATE_RATE_MS = TimeUnit.SECONDS.toMillis(1);
+
+    @Override
+    public Engine onCreateEngine() {
+        return new Engine();
+    }
+
+    private class Engine extends CanvasWatchFaceService.Engine {
+        private static final int MSG_UPDATE_TIME = 0;
+
+        private static final float COMPLICATION_TEXT_SIZE = 38f;
+        private static final int COMPLICATION_TAP_BUFFER = 40;
+
+        private static final float HOUR_STROKE_WIDTH = 5f;
+        private static final float MINUTE_STROKE_WIDTH = 3f;
+        private static final float SECOND_TICK_STROKE_WIDTH = 2f;
+
+        private static final float CENTER_GAP_AND_CIRCLE_RADIUS = 4f;
+
+        private static final int SHADOW_RADIUS = 6;
+
+        private Calendar mCalendar;
+        private boolean mRegisteredTimeZoneReceiver = false;
+        private boolean mMuteMode;
+
+        private int mWidth;
+        private int mHeight;
+        private float mCenterX;
+        private float mCenterY;
+
+        private float mSecondHandLength;
+        private float mMinuteHandLength;
+        private float mHourHandLength;
+
+        // Colors for all hands (hour, minute, seconds, ticks) based on photo loaded.
+        private int mWatchHandColor;
+        private int mWatchHandHighlightColor;
+        private int mWatchHandShadowColor;
+
+        private Paint mHourPaint;
+        private Paint mMinutePaint;
+        private Paint mSecondPaint;
+        private Paint mTickAndCirclePaint;
+
+        private Paint mBackgroundPaint;
+        private Bitmap mBackgroundBitmap;
+        private Bitmap mGrayBackgroundBitmap;
+
+        // Variables for painting Complications
+        private Paint mComplicationPaint;
+
+        /* To properly place each complication, we need their x and y coordinates. While the width
+         * may change from moment to moment based on the time, the height will not change, so we
+         * store it as a local variable and only calculate it only when the surface changes
+         * (onSurfaceChanged()).
+         */
+        private int mComplicationsY;
+
+        /* Maps active complication ids to the data for that complication. Note: Data will only be
+         * present if the user has chosen a provider via the settings activity for the watch face.
+         */
+        private SparseArray<ComplicationData> mActiveComplicationDataSparseArray;
+
+        private boolean mAmbient;
+        private boolean mLowBitAmbient;
+        private boolean mBurnInProtection;
+
+        private Rect mPeekCardBounds = new Rect();
+
+        private final BroadcastReceiver mTimeZoneReceiver = new BroadcastReceiver() {
+            @Override
+            public void onReceive(Context context, Intent intent) {
+                mCalendar.setTimeZone(TimeZone.getDefault());
+                invalidate();
+            }
+        };
+
+        // Handler to update the time once a second in interactive mode.
+        private final Handler mUpdateTimeHandler = new Handler() {
+            @Override
+            public void handleMessage(Message message) {
+
+                if (Log.isLoggable(TAG, Log.DEBUG)) {
+                    Log.d(TAG, "updating time");
+                }
+                invalidate();
+                if (shouldTimerBeRunning()) {
+                    long timeMs = System.currentTimeMillis();
+                    long delayMs = INTERACTIVE_UPDATE_RATE_MS
+                            - (timeMs % INTERACTIVE_UPDATE_RATE_MS);
+                    mUpdateTimeHandler.sendEmptyMessageDelayed(MSG_UPDATE_TIME, delayMs);
+                }
+
+            }
+        };
+
+        @Override
+        public void onCreate(SurfaceHolder holder) {
+            if (Log.isLoggable(TAG, Log.DEBUG)) {
+                Log.d(TAG, "onCreate");
+            }
+            super.onCreate(holder);
+
+            mCalendar = Calendar.getInstance();
+
+            setWatchFaceStyle(new WatchFaceStyle.Builder(ComplicationSimpleWatchFaceService.this)
+                    .setCardPeekMode(WatchFaceStyle.PEEK_MODE_SHORT)
+                    .setAcceptsTapEvents(true)
+                    .setBackgroundVisibility(WatchFaceStyle.BACKGROUND_VISIBILITY_INTERRUPTIVE)
+                    .setShowSystemUiTime(false)
+                    .build());
+
+            initializeBackground();
+            initializeComplication();
+            initializeWatchFace();
+        }
+
+        private void initializeBackground() {
+            mBackgroundPaint = new Paint();
+            mBackgroundPaint.setColor(Color.BLACK);
+            mBackgroundBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.bg);
+        }
+
+        private void initializeComplication() {
+            if (Log.isLoggable(TAG, Log.DEBUG)) {
+                Log.d(TAG, "initializeComplications()");
+            }
+            mActiveComplicationDataSparseArray = new SparseArray<>(COMPLICATION_IDS.length);
+
+            mComplicationPaint = new Paint();
+            mComplicationPaint.setColor(Color.WHITE);
+            mComplicationPaint.setTextSize(COMPLICATION_TEXT_SIZE);
+            mComplicationPaint.setTypeface(Typeface.create(Typeface.DEFAULT, Typeface.BOLD));
+            mComplicationPaint.setAntiAlias(true);
+
+            setActiveComplications(COMPLICATION_IDS);
+        }
+
+        private void initializeWatchFace() {
+            /* Set defaults for colors */
+            mWatchHandColor = Color.WHITE;
+            mWatchHandHighlightColor = Color.RED;
+            mWatchHandShadowColor = Color.BLACK;
+
+            mHourPaint = new Paint();
+            mHourPaint.setColor(mWatchHandColor);
+            mHourPaint.setStrokeWidth(HOUR_STROKE_WIDTH);
+            mHourPaint.setAntiAlias(true);
+            mHourPaint.setStrokeCap(Paint.Cap.ROUND);
+            mHourPaint.setShadowLayer(SHADOW_RADIUS, 0, 0, mWatchHandShadowColor);
+
+            mMinutePaint = new Paint();
+            mMinutePaint.setColor(mWatchHandColor);
+            mMinutePaint.setStrokeWidth(MINUTE_STROKE_WIDTH);
+            mMinutePaint.setAntiAlias(true);
+            mMinutePaint.setStrokeCap(Paint.Cap.ROUND);
+            mMinutePaint.setShadowLayer(SHADOW_RADIUS, 0, 0, mWatchHandShadowColor);
+
+            mSecondPaint = new Paint();
+            mSecondPaint.setColor(mWatchHandHighlightColor);
+            mSecondPaint.setStrokeWidth(SECOND_TICK_STROKE_WIDTH);
+            mSecondPaint.setAntiAlias(true);
+            mSecondPaint.setStrokeCap(Paint.Cap.ROUND);
+            mSecondPaint.setShadowLayer(SHADOW_RADIUS, 0, 0, mWatchHandShadowColor);
+
+            mTickAndCirclePaint = new Paint();
+            mTickAndCirclePaint.setColor(mWatchHandColor);
+            mTickAndCirclePaint.setStrokeWidth(SECOND_TICK_STROKE_WIDTH);
+            mTickAndCirclePaint.setAntiAlias(true);
+            mTickAndCirclePaint.setStyle(Paint.Style.STROKE);
+            mTickAndCirclePaint.setShadowLayer(SHADOW_RADIUS, 0, 0, mWatchHandShadowColor);
+
+            // Asynchronous call extract colors from background image to improve watch face style.
+            Palette.from(mBackgroundBitmap).generate(
+                    new Palette.PaletteAsyncListener() {
+                        public void onGenerated(Palette palette) {
+                            /*
+                             * Sometimes, palette is unable to generate a color palette
+                             * so we need to check that we have one.
+                             */
+                            if (palette != null) {
+                                Log.d("onGenerated", palette.toString());
+                                mWatchHandColor = palette.getVibrantColor(Color.WHITE);
+                                mWatchHandShadowColor = palette.getDarkMutedColor(Color.BLACK);
+                                updateWatchHandStyle();
+                            }
+                        }
+                    });
+        }
+
+        @Override
+        public void onDestroy() {
+            mUpdateTimeHandler.removeMessages(MSG_UPDATE_TIME);
+            super.onDestroy();
+        }
+
+        @Override
+        public void onPropertiesChanged(Bundle properties) {
+            super.onPropertiesChanged(properties);
+            if (Log.isLoggable(TAG, Log.DEBUG)) {
+                Log.d(TAG, "onPropertiesChanged: low-bit ambient = " + mLowBitAmbient);
+            }
+
+            mLowBitAmbient = properties.getBoolean(PROPERTY_LOW_BIT_AMBIENT, false);
+            mBurnInProtection = properties.getBoolean(PROPERTY_BURN_IN_PROTECTION, false);
+        }
+
+        /*
+         * Called when there is updated data for a complication id.
+         */
+        @Override
+        public void onComplicationDataUpdate(
+                int complicationId, ComplicationData complicationData) {
+            Log.d(TAG, "onComplicationDataUpdate() id: " + complicationId);
+
+            // Adds/updates active complication data in the array.
+            mActiveComplicationDataSparseArray.put(complicationId, complicationData);
+            invalidate();
+        }
+
+        @Override
+        public void onTapCommand(int tapType, int x, int y, long eventTime) {
+            Log.d(TAG, "OnTapCommand()");
+            switch (tapType) {
+                case TAP_TYPE_TAP:
+                    int tappedComplicationId = getTappedComplicationId(x, y);
+                    if (tappedComplicationId != -1) {
+                        onComplicationTap(tappedComplicationId);
+                    }
+                    break;
+            }
+        }
+
+        /*
+         * Determines if tap inside a complication area or returns -1.
+         */
+        private int getTappedComplicationId(int x, int y) {
+            ComplicationData complicationData;
+            long currentTimeMillis = System.currentTimeMillis();
+
+            for (int i = 0; i < COMPLICATION_IDS.length; i++) {
+                complicationData = mActiveComplicationDataSparseArray.get(COMPLICATION_IDS[i]);
+
+                if ((complicationData != null)
+                        && (complicationData.isActive(currentTimeMillis))
+                        && (complicationData.getType() != ComplicationData.TYPE_NOT_CONFIGURED)
+                        && (complicationData.getType() != ComplicationData.TYPE_EMPTY)) {
+
+                    Rect complicationBoundingRect = new Rect(0, 0, 0, 0);
+
+                    switch (COMPLICATION_IDS[i]) {
+                        case LEFT_DIAL_COMPLICATION:
+                            complicationBoundingRect.set(
+                                    0,                                          // left
+                                    mComplicationsY - COMPLICATION_TAP_BUFFER,  // top
+                                    (mWidth / 2),                               // right
+                                    ((int) COMPLICATION_TEXT_SIZE               // bottom
+                                            + mComplicationsY
+                                            + COMPLICATION_TAP_BUFFER));
+                            break;
+
+                        case RIGHT_DIAL_COMPLICATION:
+                            complicationBoundingRect.set(
+                                    (mWidth / 2),                               // left
+                                    mComplicationsY - COMPLICATION_TAP_BUFFER,  // top
+                                    mWidth,                                     // right
+                                    ((int) COMPLICATION_TEXT_SIZE               // bottom
+                                            + mComplicationsY
+                                            + COMPLICATION_TAP_BUFFER));
+                            break;
+                    }
+
+                    if (complicationBoundingRect.width() > 0) {
+                        if (complicationBoundingRect.contains(x, y)) {
+                            return COMPLICATION_IDS[i];
+                        }
+                    } else {
+                        Log.e(TAG, "Not a recognized complication id.");
+                    }
+                }
+            }
+            return -1;
+        }
+
+        /*
+         * Fires PendingIntent associated with complication (if it has one).
+         */
+        private void onComplicationTap(int complicationId) {
+            if (Log.isLoggable(TAG, Log.DEBUG)) {
+                Log.d(TAG, "onComplicationTap()");
+            }
+            ComplicationData complicationData =
+                    mActiveComplicationDataSparseArray.get(complicationId);
+
+            if ((complicationData != null) && (complicationData.getTapAction() != null)) {
+                try {
+                    complicationData.getTapAction().send();
+                } catch (PendingIntent.CanceledException e) {
+                    Log.e(TAG, "On complication tap action error " + e);
+                }
+                invalidate();
+            } else {
+                if (Log.isLoggable(TAG, Log.DEBUG)) {
+                    Log.d(TAG, "No PendingIntent for complication " + complicationId + ".");
+                }
+            }
+        }
+
+        @Override
+        public void onTimeTick() {
+            super.onTimeTick();
+            invalidate();
+        }
+
+        @Override
+        public void onAmbientModeChanged(boolean inAmbientMode) {
+            super.onAmbientModeChanged(inAmbientMode);
+            if (Log.isLoggable(TAG, Log.DEBUG)) {
+                Log.d(TAG, "onAmbientModeChanged: " + inAmbientMode);
+            }
+            mAmbient = inAmbientMode;
+
+            updateWatchHandStyle();
+
+            // Updates complication style
+            mComplicationPaint.setAntiAlias(!inAmbientMode);
+
+            // Check and trigger whether or not timer should be running (only in active mode).
+            updateTimer();
+        }
+
+        private void updateWatchHandStyle(){
+            if (mAmbient){
+                mHourPaint.setColor(Color.WHITE);
+                mMinutePaint.setColor(Color.WHITE);
+                mSecondPaint.setColor(Color.WHITE);
+                mTickAndCirclePaint.setColor(Color.WHITE);
+
+                mHourPaint.setAntiAlias(false);
+                mMinutePaint.setAntiAlias(false);
+                mSecondPaint.setAntiAlias(false);
+                mTickAndCirclePaint.setAntiAlias(false);
+
+                mHourPaint.clearShadowLayer();
+                mMinutePaint.clearShadowLayer();
+                mSecondPaint.clearShadowLayer();
+                mTickAndCirclePaint.clearShadowLayer();
+
+            } else {
+                mHourPaint.setColor(mWatchHandColor);
+                mMinutePaint.setColor(mWatchHandColor);
+                mSecondPaint.setColor(mWatchHandHighlightColor);
+                mTickAndCirclePaint.setColor(mWatchHandColor);
+
+                mHourPaint.setAntiAlias(true);
+                mMinutePaint.setAntiAlias(true);
+                mSecondPaint.setAntiAlias(true);
+                mTickAndCirclePaint.setAntiAlias(true);
+
+                mHourPaint.setShadowLayer(SHADOW_RADIUS, 0, 0, mWatchHandShadowColor);
+                mMinutePaint.setShadowLayer(SHADOW_RADIUS, 0, 0, mWatchHandShadowColor);
+                mSecondPaint.setShadowLayer(SHADOW_RADIUS, 0, 0, mWatchHandShadowColor);
+                mTickAndCirclePaint.setShadowLayer(SHADOW_RADIUS, 0, 0, mWatchHandShadowColor);
+            }
+        }
+
+        @Override
+        public void onInterruptionFilterChanged(int interruptionFilter) {
+            super.onInterruptionFilterChanged(interruptionFilter);
+            boolean inMuteMode = (interruptionFilter == WatchFaceService.INTERRUPTION_FILTER_NONE);
+
+            /* Dim display in mute mode. */
+            if (mMuteMode != inMuteMode) {
+                mMuteMode = inMuteMode;
+                mHourPaint.setAlpha(inMuteMode ? 100 : 255);
+                mMinutePaint.setAlpha(inMuteMode ? 100 : 255);
+                mSecondPaint.setAlpha(inMuteMode ? 80 : 255);
+                invalidate();
+            }
+        }
+
+        @Override
+        public void onSurfaceChanged(SurfaceHolder holder, int format, int width, int height) {
+            super.onSurfaceChanged(holder, format, width, height);
+
+            // Used for complications
+            mWidth = width;
+            mHeight = height;
+
+            /*
+             * Find the coordinates of the center point on the screen, and ignore the window
+             * insets, so that, on round watches with a "chin", the watch face is centered on the
+             * entire screen, not just the usable portion.
+             */
+            mCenterX = mWidth / 2f;
+            mCenterY = mHeight / 2f;
+
+            /*
+             * Since the height of the complications text does not change, we only have to
+             * recalculate when the surface changes.
+             */
+            mComplicationsY = (int) ((mHeight / 2) + (mComplicationPaint.getTextSize() / 2));
+
+            /*
+             * Calculate lengths of different hands based on watch screen size.
+             */
+            mSecondHandLength = (float) (mCenterX * 0.875);
+            mMinuteHandLength = (float) (mCenterX * 0.75);
+            mHourHandLength = (float) (mCenterX * 0.5);
+
+
+            /* Scale loaded background image (more efficient) if surface dimensions change. */
+            float scale = ((float) width) / (float) mBackgroundBitmap.getWidth();
+
+            mBackgroundBitmap = Bitmap.createScaledBitmap(mBackgroundBitmap,
+                    (int) (mBackgroundBitmap.getWidth() * scale),
+                    (int) (mBackgroundBitmap.getHeight() * scale), true);
+
+            /*
+             * Create a gray version of the image only if it will look nice on the device in
+             * ambient mode. That means we don't want devices that support burn-in
+             * protection (slight movements in pixels, not great for images going all the way to
+             * edges) and low ambient mode (degrades image quality).
+             *
+             * Also, if your watch face will know about all images ahead of time (users aren't
+             * selecting their own photos for the watch face), it will be more
+             * efficient to create a black/white version (png, etc.) and load that when you need it.
+             */
+            if (!mBurnInProtection && !mLowBitAmbient) {
+                initGrayBackgroundBitmap();
+            }
+        }
+
+        private void initGrayBackgroundBitmap() {
+            mGrayBackgroundBitmap = Bitmap.createBitmap(
+                    mBackgroundBitmap.getWidth(),
+                    mBackgroundBitmap.getHeight(),
+                    Bitmap.Config.ARGB_8888);
+            Canvas canvas = new Canvas(mGrayBackgroundBitmap);
+            Paint grayPaint = new Paint();
+            ColorMatrix colorMatrix = new ColorMatrix();
+            colorMatrix.setSaturation(0);
+            ColorMatrixColorFilter filter = new ColorMatrixColorFilter(colorMatrix);
+            grayPaint.setColorFilter(filter);
+            canvas.drawBitmap(mBackgroundBitmap, 0, 0, grayPaint);
+        }
+
+        @Override
+        public void onDraw(Canvas canvas, Rect bounds) {
+            if (Log.isLoggable(TAG, Log.DEBUG)) {
+                Log.d(TAG, "onDraw");
+            }
+            long now = System.currentTimeMillis();
+            mCalendar.setTimeInMillis(now);
+
+            drawBackground(canvas);
+            drawComplications(canvas, now);
+            drawWatchFace(canvas);
+
+
+        }
+
+        private void drawBackground(Canvas canvas) {
+            if (mAmbient && (mLowBitAmbient || mBurnInProtection)) {
+                canvas.drawColor(Color.BLACK);
+            } else if (mAmbient) {
+                canvas.drawBitmap(mGrayBackgroundBitmap, 0, 0, mBackgroundPaint);
+            } else {
+                canvas.drawBitmap(mBackgroundBitmap, 0, 0, mBackgroundPaint);
+            }
+        }
+
+        private void drawComplications(Canvas canvas, long currentTimeMillis) {
+            ComplicationData complicationData;
+
+            for (int i = 0; i < COMPLICATION_IDS.length; i++) {
+
+                complicationData = mActiveComplicationDataSparseArray.get(COMPLICATION_IDS[i]);
+
+                if ((complicationData != null)
+                        && (complicationData.isActive(currentTimeMillis))
+                        && (complicationData.getType() == ComplicationData.TYPE_SHORT_TEXT)) {
+
+                    ComplicationText mainText = complicationData.getShortText();
+                    ComplicationText subText = complicationData.getShortTitle();
+
+                    CharSequence complicationMessage =
+                            mainText.getText(getApplicationContext(), currentTimeMillis);
+
+                    /* In most cases you would want the subText (Title) under the mainText (Text),
+                     * but to keep it simple for the code lab, we are concatenating them all on one
+                     * line.
+                     */
+                    if (subText != null) {
+                        complicationMessage = TextUtils.concat(
+                                complicationMessage,
+                                " ",
+                                subText.getText(getApplicationContext(), currentTimeMillis));
+                    }
+
+                    //Log.d(TAG, "Comp id: " + COMPLICATION_IDS[i] + "\t" + complicationMessage);
+                    double textWidth =
+                            mComplicationPaint.measureText(
+                                    complicationMessage,
+                                    0,
+                                    complicationMessage.length());
+
+                    int complicationsX;
+
+                    if (COMPLICATION_IDS[i] == LEFT_DIAL_COMPLICATION) {
+                        complicationsX = (int) ((mWidth / 2) - textWidth) / 2;
+                    } else {
+                        // RIGHT_DIAL_COMPLICATION calculations
+                        int offset = (int) ((mWidth / 2) - textWidth) / 2;
+                        complicationsX = (mWidth / 2) + offset;
+                    }
+
+                    canvas.drawText(
+                            complicationMessage,
+                            0,
+                            complicationMessage.length(),
+                            complicationsX,
+                            mComplicationsY,
+                            mComplicationPaint);
+                }
+            }
+        }
+
+        private void drawWatchFace(Canvas canvas) {
+            /*
+             * Draw ticks. Usually you will want to bake this directly into the photo, but in
+             * cases where you want to allow users to select their own photos, this dynamically
+             * creates them on top of the photo.
+             */
+            float innerTickRadius = mCenterX - 10;
+            float outerTickRadius = mCenterX;
+            for (int tickIndex = 0; tickIndex < 12; tickIndex++) {
+                float tickRot = (float) (tickIndex * Math.PI * 2 / 12);
+                float innerX = (float) Math.sin(tickRot) * innerTickRadius;
+                float innerY = (float) -Math.cos(tickRot) * innerTickRadius;
+                float outerX = (float) Math.sin(tickRot) * outerTickRadius;
+                float outerY = (float) -Math.cos(tickRot) * outerTickRadius;
+                canvas.drawLine(mCenterX + innerX, mCenterY + innerY,
+                        mCenterX + outerX, mCenterY + outerY, mTickAndCirclePaint);
+            }
+
+            /*
+             * These calculations reflect the rotation in degrees per unit of time, e.g.,
+             * 360 / 60 = 6 and 360 / 12 = 30.
+             */
+            final float seconds =
+                    (mCalendar.get(Calendar.SECOND) + mCalendar.get(Calendar.MILLISECOND) / 1000f);
+            final float secondsRotation = seconds * 6f;
+
+            final float minutesRotation = mCalendar.get(Calendar.MINUTE) * 6f;
+
+            final float hourHandOffset = mCalendar.get(Calendar.MINUTE) / 2f;
+            final float hoursRotation = (mCalendar.get(Calendar.HOUR) * 30) + hourHandOffset;
+
+            /*
+             * Save the canvas state before we can begin to rotate it.
+             */
+            canvas.save();
+
+            canvas.rotate(hoursRotation, mCenterX, mCenterY);
+            canvas.drawLine(
+                    mCenterX,
+                    mCenterY - CENTER_GAP_AND_CIRCLE_RADIUS,
+                    mCenterX,
+                    mCenterY - mHourHandLength,
+                    mHourPaint);
+
+            canvas.rotate(minutesRotation - hoursRotation, mCenterX, mCenterY);
+            canvas.drawLine(
+                    mCenterX,
+                    mCenterY - CENTER_GAP_AND_CIRCLE_RADIUS,
+                    mCenterX,
+                    mCenterY - mMinuteHandLength,
+                    mMinutePaint);
+
+            /*
+             * Ensure the "seconds" hand is drawn only when we are in interactive mode.
+             * Otherwise, we only update the watch face once a minute.
+             */
+            if (!mAmbient) {
+                canvas.rotate(secondsRotation - minutesRotation, mCenterX, mCenterY);
+                canvas.drawLine(
+                        mCenterX,
+                        mCenterY - CENTER_GAP_AND_CIRCLE_RADIUS,
+                        mCenterX,
+                        mCenterY - mSecondHandLength,
+                        mSecondPaint);
+
+            }
+            canvas.drawCircle(
+                    mCenterX,
+                    mCenterY,
+                    CENTER_GAP_AND_CIRCLE_RADIUS,
+                    mTickAndCirclePaint);
+
+            /* Restore the canvas' original orientation. */
+            canvas.restore();
+
+            /* Draw rectangle behind peek card in ambient mode to improve readability. */
+            if (mAmbient) {
+                canvas.drawRect(mPeekCardBounds, mBackgroundPaint);
+            }
+        }
+
+        @Override
+        public void onVisibilityChanged(boolean visible) {
+            super.onVisibilityChanged(visible);
+
+            if (visible) {
+                registerReceiver();
+                // Update time zone in case it changed while we weren't visible.
+                mCalendar.setTimeZone(TimeZone.getDefault());
+                invalidate();
+            } else {
+                unregisterReceiver();
+            }
+
+            /* Check and trigger whether or not timer should be running (only in active mode). */
+            updateTimer();
+        }
+
+        @Override
+        public void onPeekCardPositionUpdate(Rect rect) {
+            super.onPeekCardPositionUpdate(rect);
+            mPeekCardBounds.set(rect);
+        }
+
+        private void registerReceiver() {
+            if (mRegisteredTimeZoneReceiver) {
+                return;
+            }
+            mRegisteredTimeZoneReceiver = true;
+            IntentFilter filter = new IntentFilter(Intent.ACTION_TIMEZONE_CHANGED);
+            ComplicationSimpleWatchFaceService.this.registerReceiver(mTimeZoneReceiver, filter);
+        }
+
+        private void unregisterReceiver() {
+            if (!mRegisteredTimeZoneReceiver) {
+                return;
+            }
+            mRegisteredTimeZoneReceiver = false;
+            ComplicationSimpleWatchFaceService.this.unregisterReceiver(mTimeZoneReceiver);
+        }
+
+        /**
+         * Starts/stops the {@link #mUpdateTimeHandler} timer based on the state of the watch face.
+         */
+        private void updateTimer() {
+            if (Log.isLoggable(TAG, Log.DEBUG)) {
+                Log.d(TAG, "updateTimer");
+            }
+            mUpdateTimeHandler.removeMessages(MSG_UPDATE_TIME);
+            if (shouldTimerBeRunning()) {
+                mUpdateTimeHandler.sendEmptyMessage(MSG_UPDATE_TIME);
+            }
+        }
+
+        /**
+         * Returns whether the {@link #mUpdateTimeHandler} timer should be running. The timer
+         * should only run in active mode.
+         */
+        private boolean shouldTimerBeRunning() {
+            return isVisible() && !mAmbient;
+        }
+    }
+}

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

@@ -40,6 +40,11 @@ public class DigitalWatchFaceConfigListenerService extends WearableListenerServi
 
     @Override // WearableListenerService
     public void onMessageReceived(MessageEvent messageEvent) {
+
+        if (Log.isLoggable(TAG, Log.DEBUG)) {
+            Log.d(TAG, "onMessageReceived: " + messageEvent);
+        }
+
         if (!messageEvent.getPath().equals(DigitalWatchFaceUtil.PATH_WITH_FEATURE)) {
             return;
         }

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

@@ -62,7 +62,10 @@ import java.util.concurrent.TimeUnit;
  *
  * 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).
+ * de-authorizing watchface). To authenticate and communicate with Google Fit, you must create a
+ * project in the Google Developers Console, activate the Fitness API, create an OAuth 2.0
+ * client ID, and register the public certificate from your app's signed APK. More details can be
+ * found here: https://developers.google.com/fit/android/get-started#step_3_enable_the_fitness_api
  *
  * In ambient mode, the seconds are replaced with an AM/PM indicator.
  *

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

@@ -0,0 +1,96 @@
+package com.example.android.wearable.watchface.provider;
+
+import android.support.wearable.complications.ComplicationData;
+import android.support.wearable.complications.ComplicationManager;
+import android.support.wearable.complications.ComplicationProviderService;
+import android.support.wearable.complications.ComplicationText;
+import android.util.Log;
+
+import java.util.Locale;
+
+/**
+ * Example Watch Face Complication data provider provides a random number on every update.
+ */
+public class RandomNumberProviderService extends ComplicationProviderService {
+
+    private static final String TAG = "RandomNumberProvider";
+
+    /*
+     * Called when a complication has been activated. The method is for any one-time
+     * (per complication) set-up.
+     *
+     * You can continue sending data for the active complicationId until onComplicationDeactivated()
+     * is called.
+     */
+    @Override
+    public void onComplicationActivated(
+            int complicationId, int dataType, ComplicationManager complicationManager) {
+        Log.d(TAG, "onComplicationActivated(): " + complicationId);
+        super.onComplicationActivated(complicationId, dataType, complicationManager);
+    }
+
+    /*
+     * Called when the complication needs updated data from your provider. There are four scenarios
+     * when this will happen:
+     *
+     *   1. An active watch face complication is changed to use this provider
+     *   2. A complication using this provider becomes active
+     *   3. The period of time you specified in the manifest has elapsed (UPDATE_PERIOD_SECONDS)
+     *   4. You triggered an update from your own class via the
+     *       ProviderUpdateRequester.requestUpdate() method.
+     */
+    @Override
+    public void onComplicationUpdate(
+            int complicationId, int dataType, ComplicationManager complicationManager) {
+        Log.d(TAG, "onComplicationUpdate()");
+
+
+        // Retrieve your data, in this case, we simply create a random number to display.
+        int randomNumber = (int) Math.floor(Math.random() * 10);
+
+        String randomNumberText =
+                String.format(Locale.getDefault(), "%d!", randomNumber);
+
+        ComplicationData complicationData = null;
+
+        switch (dataType) {
+            case ComplicationData.TYPE_RANGED_VALUE:
+                complicationData = new ComplicationData.Builder(ComplicationData.TYPE_RANGED_VALUE)
+                        .setValue(randomNumber)
+                        .setMinValue(0)
+                        .setMaxValue(10)
+                        .setShortText(ComplicationText.plainText(randomNumberText))
+                        .build();
+                break;
+            case ComplicationData.TYPE_SHORT_TEXT:
+                complicationData = new ComplicationData.Builder(ComplicationData.TYPE_SHORT_TEXT)
+                        .setShortText(ComplicationText.plainText(randomNumberText))
+                        .build();
+                break;
+            case ComplicationData.TYPE_LONG_TEXT:
+                complicationData = new ComplicationData.Builder(ComplicationData.TYPE_LONG_TEXT)
+                        .setLongText(
+                                ComplicationText.plainText("Random Number: " + randomNumberText))
+                        .build();
+                break;
+            default:
+                if (Log.isLoggable(TAG, Log.WARN)) {
+                    Log.w(TAG, "Unexpected complication type " + dataType);
+                }
+        }
+
+        if (complicationData != null) {
+            complicationManager.updateComplicationData(complicationId, complicationData);
+        }
+    }
+
+    /*
+     * Called when the complication has been deactivated. If you are updating the complication
+     * manager outside of this class with updates, you will want to update your class to stop.
+     */
+    @Override
+    public void onComplicationDeactivated(int complicationId) {
+        Log.d(TAG, "onComplicationDeactivated(): " + complicationId);
+        super.onComplicationDeactivated(complicationId);
+    }
+}

samples/browseable/WearDrawers/AndroidManifest.xml

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest package="com.example.android.wearable.wear.weardrawers"
+          xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <uses-feature android:name="android.hardware.type.watch"/>
+    <!-- Required for Always-on. -->
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        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" />
+
+        <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/WearDrawers/_index.jd

@@ -0,0 +1,10 @@
+
+page.tags="WearDrawers"
+sample.group=Wearable
+@jd:body
+
+<p>
+            
+A simple sample that demonstrates Navigation and Action Drawers, part of Material Design for Wear.
+            
+        </p>

samples/browseable/WearDrawers/res/layout/fragment_planet.xml

@@ -0,0 +1,20 @@
+<!--
+  Copyright 2016 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.
+-->
+<ImageView xmlns:android="http://schemas.android.com/apk/res/android"
+           android:id="@+id/image"
+           android:layout_width="match_parent"
+           android:layout_height="match_parent"
+           android:gravity="center"/>

samples/browseable/WearDrawers/res/menu/action_drawer_menu.xml

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright 2016 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.
+-->
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:id="@+id/menu_planet_name"
+          android:icon="@drawable/ic_info_outline_black_18dp"
+          android:title="Planet Name"/>
+    <item android:id="@+id/menu_number_of_moons"
+          android:icon="@drawable/ic_info_outline_black_18dp"
+          android:title="Number of Moons" />
+    <item android:id="@+id/menu_volume"
+          android:icon="@drawable/ic_info_outline_black_18dp"
+          android:title="Volume" />
+    <item android:id="@+id/menu_surface_area"
+          android:icon="@drawable/ic_info_outline_black_18dp"
+          android:title="Surface Area" />
+</menu>

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

@@ -0,0 +1,114 @@
+<!--
+  Copyright 2016 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.
+-->
+<resources>
+    <string name="app_name">Wearable Drawer Layout</string>
+
+    <!--
+    Reference name for each planet's information array.
+    -->
+    <string-array name="planets_array_names">
+        <item>mercury</item>
+        <item>venus</item>
+        <item>earth</item>
+        <item>mars</item>
+        <item>jupiter</item>
+        <item>saturn</item>
+        <item>uranus</item>
+        <item>neptune</item>
+    </string-array>
+
+    <!--
+    Keys for planet array information below:
+        "Planet Name",
+        "Navigation icon",
+        "Drawable for planet"
+        "Number of Moons",
+        "Volume"
+        "Surface Area"
+
+    -->
+    <string-array name="mercury">
+        <item>Mercury</item>
+        <item>ic_m_white_48dp</item>
+        <item>mercury</item>
+        <item>0 Moons</item>
+        <item>0.056 x Earth</item>
+        <item>0.147 x Earth</item>
+    </string-array>
+
+    <string-array name="venus">
+        <item>Venus</item>
+        <item>ic_v_white_48dp</item>
+        <item>venus</item>
+        <item>0 Moons</item>
+        <item>0.857 x Earth</item>
+        <item>0.902 x Earth</item>
+    </string-array>
+
+    <string-array name="earth">
+        <item>Earth</item>
+        <item>ic_e_white_48dp</item>
+        <item>earth</item>
+        <item>1 moon</item>
+        <item>1,083,206,916,846 km3</item>
+        <item>510,064,472 km2</item>
+    </string-array>
+
+    <string-array name="mars">
+        <item>Mars</item>
+        <item>ic_m_white_48dp</item>
+        <item>mars</item>
+        <item>2 Moons</item>
+        <item>0.151 x Earth</item>
+        <item>0.283 x Earth</item>
+    </string-array>
+
+    <string-array name="jupiter">
+        <item>Jupiter</item>
+        <item>ic_j_white_48dp</item>
+        <item>jupiter</item>
+        <item>67 Moons</item>
+        <item>1,321.337 x Earth</item>
+        <item>120.414 x Earth</item>
+    </string-array>
+
+    <string-array name="saturn">
+        <item>Saturn</item>
+        <item>ic_s_white_48dp</item>
+        <item>saturn</item>
+        <item>62 moons</item>
+        <item>763.594 x Earth</item>
+        <item>83.543 x Earth</item>
+    </string-array>
+
+    <string-array name="uranus">
+        <item>Uranus</item>
+        <item>ic_u_white_48dp</item>
+        <item>uranus</item>
+        <item>27 Moons</item>
+        <item>63.085 x Earth</item>
+        <item>15.847 x Earth</item>
+    </string-array>
+
+    <string-array name="neptune">
+        <item>Neptune</item>
+        <item>ic_n_white_48dp</item>
+        <item>neptune</item>
+        <item>14 Moons</item>
+        <item>57.723 x Earth</item>
+        <item>14.980 x Earth</item>
+    </string-array>
+</resources>

samples/browseable/WearDrawers/src/com.example.android.wearable.wear.weardrawers/Planet.java

@@ -0,0 +1,69 @@
+/*
+Copyright 2016 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.wear.weardrawers;
+
+/**
+ * Represents planet for app.
+ */
+public class Planet {
+
+    private String name;
+    private String navigationIcon;
+    private String image;
+    private String moons;
+    private String volume;
+    private String surfaceArea;
+
+    public Planet(
+            String name,
+            String navigationIcon,
+            String image,
+            String moons,
+            String volume,
+            String surfaceArea) {
+
+        this.name = name;
+        this.navigationIcon = navigationIcon;
+        this.image = image;
+        this.moons = moons;
+        this.volume = volume;
+        this.surfaceArea = surfaceArea;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public String getNavigationIcon() {
+        return navigationIcon;
+    }
+
+    public String getImage() {
+        return image;
+    }
+
+    public String getMoons() {
+        return moons;
+    }
+
+    public String getVolume() {
+        return volume;
+    }
+
+    public String getSurfaceArea() {
+        return surfaceArea;
+    }
+}

samples/browseable/XYZTouristAttractions/Application/AndroidManifest.xml

@@ -55,7 +55,16 @@
 
         <service android:name=".service.ListenerService">
             <intent-filter>
-                <action android:name="com.google.android.gms.wearable.BIND_LISTENER" />
+                <!-- listeners receive events that match the action and data filters -->
+                <action android:name="com.google.android.gms.wearable.MESSAGE_RECEIVED" />
+
+                <!-- filters by Constants.CLEAR_NOTIFICATIONS_PATH -->
+                <data android:scheme="wear" android:host="*" android:pathPrefix="/clear"/>
+
+                <!-- filters by Constants.START_PATH, the prefix for
+                Constants.START_ATTRACTION_PATH ('/start/attraction') and
+                Constants.START_NAVIGATION_PATH ('/start/navigation') -->
+                <data android:scheme="wear" android:host="*" android:pathPrefix="/start"/>
             </intent-filter>
         </service>
 

samples/browseable/XYZTouristAttractions/Wearable/AndroidManifest.xml

@@ -44,7 +44,14 @@
 
         <service android:name=".service.ListenerService">
             <intent-filter>
-                <action android:name="com.google.android.gms.wearable.BIND_LISTENER" />
+                <!-- listeners receive events that match the action and data filters -->
+                <action android:name="com.google.android.gms.wearable.DATA_CHANGED" />
+                <!-- filters by Constants.EXTRA_ATTRACTIONS -->
+                <data android:scheme="wear" android:host="*" android:pathPrefix="/attraction"/>
+
+                <action android:name="com.google.android.gms.wearable.MESSAGE_RECEIVED" />
+                <!-- filters by Constants.CLEAR_NOTIFICATIONS_PATH -->
+                <data android:scheme="wear" android:host="*" android:pathPrefix="/clear"/>
             </intent-filter>
         </service>