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am b7e8a4ec: Merge "Add a demo for using Presentations with the MediaRouter." into jb-mr1-dev

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* commit 'b7e8a4ecb1b5f5a46e8e5c42c29425bbb16fc2fc':
  Add a demo for using Presentations with the MediaRouter.
This commit is contained in:
Jeff Brown
2012-10-26 15:09:50 -07:00
committed by Android Git Automerger
parent 46e81a3853 b7e8a4ecb1
commit 5091d4e433
9 changed files with 570 additions and 47 deletions
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8
samples/ApiDemos/AndroidManifest.xml
View File

@@ -262,6 +262,14 @@
</intent-filter>
</activity>
<activity android:name=".app.PresentationWithMediaRouterActivity"
android:label="@string/activity_presentation_with_media_router">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.SAMPLE_CODE" />
</intent-filter>
</activity>
<activity android:name=".app.SecureWindowActivity"
android:label="@string/activity_secure_window">
<intent-filter>

7
samples/ApiDemos/res/layout/presentation_activity.xml
View File

@@ -32,6 +32,13 @@
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="@string/presentation_activity_text"/>
<!-- A checkbox to toggle between showing all displays or only presentation displays. -->
<CheckBox android:id="@+id/show_all_displays"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0"
android:text="@string/presentation_show_all_displays" />
<!-- List that will show information about all connected displays. -->
<ListView android:id="@+id/display_list"
android:layout_width="match_parent"

46
samples/ApiDemos/res/layout/presentation_with_media_router_activity.xml Normal file
View File

@@ -0,0 +1,46 @@
<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2012 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.
-->
<!-- See corresponding Java code PresentationWithMediaRouterActivity.java. -->
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<!-- Message to show to use. -->
<TextView android:id="@+id/text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0"
android:gravity="center_vertical|center_horizontal"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="@string/presentation_with_media_router_activity_text"/>
<!-- Some information about what's going on. -->
<TextView android:id="@+id/info"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0"
android:gravity="center_vertical|center_horizontal"
android:textAppearance="?android:attr/textAppearanceMedium"/>
<!-- Some content for visual interest in the case where no presentation is showing. -->
<android.opengl.GLSurfaceView android:id="@+id/surface_view"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1" />
</LinearLayout>

23
samples/ApiDemos/res/layout/presentation_with_media_router_content.xml Normal file
View File

@@ -0,0 +1,23 @@
<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2012 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.
-->
<!-- The content that we show on secondary displays.
See corresponding Java code PresentationWithMediaRouterActivity.java. -->
<android.opengl.GLSurfaceView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/surface_view"
android:layout_width="match_parent"
android:layout_height="match_parent" />

23
samples/ApiDemos/res/menu/presentation_with_media_router_menu.xml Normal file
View File

@@ -0,0 +1,23 @@
<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2012 Google Inc.
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_media_route"
android:title="@string/presentation_with_media_router_play_on"
android:showAsAction="always"
android:orderInCategory="1"
android:actionProviderClass="android.app.MediaRouteActionProvider"/>
</menu>

20
samples/ApiDemos/res/values/strings.xml
View File

@@ -113,15 +113,27 @@
<string name="apply">Apply</string>
<string name="activity_presentation">App/Activity/Presentation</string>
<string name="presentation_activity_text">This activity demonstrates how to use the Presentation activity to show content on other Displays.\n
<string name="presentation_activity_text">This activity demonstrates how to use a
Presentation and the DisplayManager to show content on other Displays.\n
Try connecting a secondary display and watch what happens.\n
Selecting a Display will open a Presentation on it.</string>
<string name="presentation_channel_text">You\'re watching channel %1$d on display %2$d.</string>
<string name="presentation_show_all_displays">Show all displays</string>
<string name="presentation_photo_text">Showing photo #%1$d on display #%2$d: %3$s.</string>
<string name="presentation_info_text">Info</string>
<string name="presentation_display_id_text">Display #%1$d</string>
<string name="presentation_alert_info_text">Display %1$d Info</string>
<string name="presentation_display_id_text">Display #%1$d: %2$s</string>
<string name="presentation_alert_info_text">Display #%1$d Info</string>
<string name="presentation_alert_dismiss_text">OK</string>
<string name="activity_presentation_with_media_router">App/Activity/Presentation with Media Router</string>
<string name="presentation_with_media_router_activity_text">This activity demonstrates how to
use a Presentation and the MediaRouter to automatically
show content on a secondary display when available based on the currently
selected media route.\n
Try connecting a secondary display and watch what happens.</string>
<string name="presentation_with_media_router_play_on">Play on...</string>
<string name="presentation_with_media_router_now_playing_locally">Now playing on main display \'%s\'.</string>
<string name="presentation_with_media_router_now_playing_remotely">Now playing on secondary display \'%s\'.</string>
<string name="activity_secure_window">App/Activity/Secure Surfaces/Secure Window</string>
<string name="secure_window_activity_text">This activity demonstrates how to make an activity
use a secure surface so that its contents will only be visible on secure displays.

174
samples/ApiDemos/src/com/example/android/apis/app/PresentationActivity.java
View File

@@ -30,6 +30,9 @@ import android.graphics.Point;
import android.graphics.drawable.GradientDrawable;
import android.hardware.display.DisplayManager;
import android.os.Bundle;
import android.os.Parcel;
import android.os.Parcelable;
import android.os.Parcelable.Creator;
import android.util.Log;
import android.util.SparseArray;
import android.view.Display;
@@ -45,6 +48,7 @@ import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
//BEGIN_INCLUDE(activity)
/**
* <h3>Presentation Activity</h3>
*
@@ -52,18 +56,32 @@ import android.widget.TextView;
* This demonstrates how to create an activity that shows some content
* on a secondary display using a {@link Presentation}.
* </p><p>
* The activity automatically creates and displays a {@link Presentation} whenever
* a new non-default display is detected. You can try this out by using
* the "Simulate secondary displays" feature in Development Settings to create
* a few simulated secondary displays.
* The activity uses the {@link DisplayManager} API to enumerate displays.
* When the user selects a display, the activity opens a {@link Presentation}
* on that display. We show a different photograph in each presentation
* on a unique background along with a label describing the display.
* We also write information about displays and display-related events to
* the Android log which you can read using <code>adb logcat</code>.
* </p><p>
* You can try this out using an HDMI or Wifi display or by using the
* "Simulate secondary displays" feature in Development Settings to create a few
* simulated secondary displays. Each display will appear in the list along with a
* checkbox to show a presentation on that display.
* </p><p>
* See also the {@link PresentationWithMediaRouterActivity} sample which
* uses the media router to automatically select a secondary display
* on which to show content based on the currently selected route.
* </p>
*/
public class PresentationActivity extends Activity
implements OnCheckedChangeListener, OnClickListener {
private final String TAG = "PresentationActivity";
// Key for storing saved instance state.
private static final String PRESENTATION_KEY = "presentation";
// The content that we want to show on the presentation.
private static final int[] CHANNELS = new int[] {
private static final int[] PHOTOS = new int[] {
R.drawable.frantic,
R.drawable.photo1, R.drawable.photo2, R.drawable.photo3,
R.drawable.photo4, R.drawable.photo5, R.drawable.photo6,
@@ -72,14 +90,16 @@ public class PresentationActivity extends Activity
private DisplayManager mDisplayManager;
private DisplayListAdapter mDisplayListAdapter;
private CheckBox mShowAllDisplaysCheckbox;
private ListView mListView;
private int mNextChannelNumber;
private int mNextImageNumber;
// Indexed by displayId. Persists across pause/resume.
private final SparseArray<PresentationContents> mSavedPresentationContents =
new SparseArray<PresentationContents>();
// List of presentation contents indexed by displayId.
// This state persists so that we can restore the old presentation
// contents when the activity is paused or resumed.
private SparseArray<PresentationContents> mSavedPresentationContents;
// Indexed by displayId. Contains all currently displayed Presentations.
// List of all currently visible presentations indexed by display id.
private final SparseArray<DemoPresentation> mActivePresentations =
new SparseArray<DemoPresentation>();
@@ -93,6 +113,14 @@ public class PresentationActivity extends Activity
// Be sure to call the super class.
super.onCreate(savedInstanceState);
// Restore saved instance state.
if (savedInstanceState != null) {
mSavedPresentationContents =
savedInstanceState.getSparseParcelableArray(PRESENTATION_KEY);
} else {
mSavedPresentationContents = new SparseArray<PresentationContents>();
}
// Get the display manager service.
mDisplayManager = (DisplayManager)getSystemService(Context.DISPLAY_SERVICE);
@@ -101,6 +129,11 @@ public class PresentationActivity extends Activity
// the content of our screen.
setContentView(R.layout.presentation_activity);
// Set up checkbox to toggle between showing all displays or only presentation displays.
mShowAllDisplaysCheckbox = (CheckBox)findViewById(R.id.show_all_displays);
mShowAllDisplaysCheckbox.setOnCheckedChangeListener(this);
// Set up the list of displays.
mDisplayListAdapter = new DisplayListAdapter(this);
mListView = (ListView)findViewById(R.id.display_list);
mListView.setAdapter(mDisplayListAdapter);
@@ -114,6 +147,7 @@ public class PresentationActivity extends Activity
// Update our list of displays on resume.
mDisplayListAdapter.updateContents();
// Restore presentations from before the activity was paused.
final int numDisplays = mDisplayListAdapter.getCount();
for (int i = 0; i < numDisplays; i++) {
final Display display = mDisplayListAdapter.getItem(i);
@@ -137,7 +171,7 @@ public class PresentationActivity extends Activity
// Unregister from the display manager.
mDisplayManager.unregisterDisplayListener(mDisplayListener);
// Dismiss all of our presentations.
// Dismiss all of our presentations but remember their contents.
Log.d(TAG, "Activity is being paused. Dismissing all active presentation.");
for (int i = 0; i < mActivePresentations.size(); i++) {
DemoPresentation presentation = mActivePresentations.valueAt(i);
@@ -148,6 +182,13 @@ public class PresentationActivity extends Activity
mActivePresentations.clear();
}
@Override
protected void onSaveInstanceState(Bundle outState) {
// Be sure to call the super class.
super.onSaveInstanceState(outState);
outState.putSparseParcelableArray(PRESENTATION_KEY, mSavedPresentationContents);
}
/**
* Shows a {@link Presentation} on the specified display.
*/
@@ -157,8 +198,8 @@ public class PresentationActivity extends Activity
return;
}
Log.d(TAG, "Showing presentation channel " + contents.channel
+ " on display " + displayId + ".");
Log.d(TAG, "Showing presentation photo #" + contents.photo
+ " on display #" + displayId + ".");
DemoPresentation presentation = new DemoPresentation(this, display, contents);
presentation.show();
@@ -176,32 +217,44 @@ public class PresentationActivity extends Activity
return;
}
Log.d(TAG, "Dismissing presentation on display " + displayId + ".");
Log.d(TAG, "Dismissing presentation on display #" + displayId + ".");
presentation.dismiss();
mActivePresentations.delete(displayId);
}
private int getNextChannel() {
final int channel = mNextChannelNumber;
mNextChannelNumber = (mNextChannelNumber + 1) % CHANNELS.length;
return channel;
private int getNextPhoto() {
final int photo = mNextImageNumber;
mNextImageNumber = (mNextImageNumber + 1) % PHOTOS.length;
return photo;
}
/**
* Called when the show all displays checkbox is toggled or when
* an item in the list of displays is checked or unchecked.
*/
@Override
/** Presentation CheckBox */
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
final Display display = (Display)buttonView.getTag();
if (isChecked) {
PresentationContents contents = new PresentationContents(getNextChannel());
showPresentation(display, contents);
if (buttonView == mShowAllDisplaysCheckbox) {
// Show all displays checkbox was toggled.
mDisplayListAdapter.updateContents();
} else {
hidePresentation(display);
// Display item checkbox was toggled.
final Display display = (Display)buttonView.getTag();
if (isChecked) {
PresentationContents contents = new PresentationContents(getNextPhoto());
showPresentation(display, contents);
} else {
hidePresentation(display);
}
}
}
/**
* Called when the Info button next to a display is clicked to show information
* about the display.
*/
@Override
/** Info Button */
public void onClick(View v) {
Context context = v.getContext();
AlertDialog.Builder builder = new AlertDialog.Builder(context);
@@ -235,19 +288,19 @@ public class PresentationActivity extends Activity
new DisplayManager.DisplayListener() {
@Override
public void onDisplayAdded(int displayId) {
Log.d(TAG, "Display " + displayId + " added.");
Log.d(TAG, "Display #" + displayId + " added.");
mDisplayListAdapter.updateContents();
}
@Override
public void onDisplayChanged(int displayId) {
Log.d(TAG, "Display " + displayId + " changed.");
Log.d(TAG, "Display #" + displayId + " changed.");
mDisplayListAdapter.updateContents();
}
@Override
public void onDisplayRemoved(int displayId) {
Log.d(TAG, "Display " + displayId + " removed.");
Log.d(TAG, "Display #" + displayId + " removed.");
mDisplayListAdapter.updateContents();
}
};
@@ -261,7 +314,7 @@ public class PresentationActivity extends Activity
public void onDismiss(DialogInterface dialog) {
DemoPresentation presentation = (DemoPresentation)dialog;
int displayId = presentation.getDisplay().getDisplayId();
Log.d(TAG, "Presentation on display " + displayId + " was dismissed.");
Log.d(TAG, "Presentation on display #" + displayId + " was dismissed.");
mActivePresentations.delete(displayId);
mDisplayListAdapter.notifyDataSetChanged();
}
@@ -300,7 +353,7 @@ public class PresentationActivity extends Activity
TextView tv = (TextView)v.findViewById(R.id.display_id);
tv.setText(v.getContext().getResources().getString(
R.string.presentation_display_id_text, displayId));
R.string.presentation_display_id_text, displayId, display.getName()));
Button b = (Button)v.findViewById(R.id.info);
b.setTag(display);
@@ -316,7 +369,8 @@ public class PresentationActivity extends Activity
public void updateContents() {
clear();
Display[] displays = mDisplayManager.getDisplays();
String displayCategory = getDisplayCategory();
Display[] displays = mDisplayManager.getDisplays(displayCategory);
addAll(displays);
Log.d(TAG, "There are currently " + displays.length + " displays connected.");
@@ -324,12 +378,17 @@ public class PresentationActivity extends Activity
Log.d(TAG, " " + display);
}
}
private String getDisplayCategory() {
return mShowAllDisplaysCheckbox.isChecked() ? null :
DisplayManager.DISPLAY_CATEGORY_PRESENTATION;
}
}
/**
* The presentation to show on the secondary display.
*
* Note that this display may have different metrics from the display on which
* Note that the presentation display may have different metrics from the display on which
* the main activity is showing so we must be careful to use the presentation's
* own {@link Context} whenever we load resources.
*/
@@ -356,15 +415,16 @@ public class PresentationActivity extends Activity
final Display display = getDisplay();
final int displayId = display.getDisplayId();
final int channel = mContents.channel;
final int photo = mContents.photo;
// Show a text message to describe what's going on.
// Show a caption to describe what's going on.
TextView text = (TextView)findViewById(R.id.text);
text.setText(r.getString(R.string.presentation_channel_text, channel, displayId));
text.setText(r.getString(R.string.presentation_photo_text,
photo, displayId, display.getName()));
// Show a n image for visual interest.
ImageView image = (ImageView)findViewById(R.id.image);
image.setImageDrawable(r.getDrawable(CHANNELS[channel]));
image.setImageDrawable(r.getDrawable(PHOTOS[photo]));
GradientDrawable drawable = new GradientDrawable();
drawable.setShape(GradientDrawable.RECTANGLE);
@@ -379,15 +439,49 @@ public class PresentationActivity extends Activity
}
}
private final static class PresentationContents {
final int channel;
/**
* Information about the content we want to show in a presentation.
*/
private final static class PresentationContents implements Parcelable {
final int photo;
final int[] colors;
public PresentationContents(int channel) {
this.channel = channel;
public static final Creator<PresentationContents> CREATOR =
new Creator<PresentationContents>() {
@Override
public PresentationContents createFromParcel(Parcel in) {
return new PresentationContents(in);
}
@Override
public PresentationContents[] newArray(int size) {
return new PresentationContents[size];
}
};
public PresentationContents(int photo) {
this.photo = photo;
colors = new int[] {
((int) (Math.random() * Integer.MAX_VALUE)) | 0xFF000000,
((int) (Math.random() * Integer.MAX_VALUE)) | 0xFF000000 };
}
private PresentationContents(Parcel in) {
photo = in.readInt();
colors = new int[] { in.readInt(), in.readInt() };
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeInt(photo);
dest.writeInt(colors[0]);
dest.writeInt(colors[1]);
}
}
}
//END_INCLUDE(activity)

290
samples/ApiDemos/src/com/example/android/apis/app/PresentationWithMediaRouterActivity.java Normal file
View File

@@ -0,0 +1,290 @@
/*
* Copyright (C) 2012 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.apis.app;
import com.example.android.apis.R;
import com.example.android.apis.graphics.CubeRenderer;
import android.app.Activity;
import android.app.MediaRouteActionProvider;
import android.app.Presentation;
import android.content.Context;
import android.content.DialogInterface;
import android.content.res.Resources;
import android.media.MediaRouter;
import android.media.MediaRouter.RouteInfo;
import android.opengl.GLSurfaceView;
import android.os.Bundle;
import android.util.Log;
import android.view.Display;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.WindowManager;
import android.widget.TextView;
//BEGIN_INCLUDE(activity)
/**
* <h3>Presentation Activity</h3>
*
* <p>
* This demonstrates how to create an activity that shows some content
* on a secondary display using a {@link Presentation}.
* </p><p>
* The activity uses the {@link MediaRouter} API to automatically detect when
* a presentation display is available and to allow the user to control the
* media routes using a menu item. When a presentation display is available,
* we stop showing content in the main activity and instead open up a
* {@link Presentation} on the preferred presentation display. When a presentation
* display is removed, we revert to showing content in the main activity.
* We also write information about displays and display-related events to
* the Android log which you can read using <code>adb logcat</code>.
* </p><p>
* You can try this out using an HDMI or Wifi display or by using the
* "Simulate secondary displays" feature in Development Settings to create a few
* simulated secondary displays. Each display will appear in the list along with a
* checkbox to show a presentation on that display.
* </p><p>
* See also the {@link PresentationActivity} sample which
* uses the low-level display manager to enumerate displays and to show multiple
* simultaneous presentations on different displays.
* </p>
*/
public class PresentationWithMediaRouterActivity extends Activity {
private final String TAG = "PresentationWithMediaRouterActivity";
private MediaRouter mMediaRouter;
private DemoPresentation mPresentation;
private GLSurfaceView mSurfaceView;
private TextView mInfoTextView;
private boolean mPaused;
/**
* Initialization of the Activity after it is first created. Must at least
* call {@link android.app.Activity#setContentView setContentView()} to
* describe what is to be displayed in the screen.
*/
@Override
protected void onCreate(Bundle savedInstanceState) {
// Be sure to call the super class.
super.onCreate(savedInstanceState);
// Get the media router service.
mMediaRouter = (MediaRouter)getSystemService(Context.MEDIA_ROUTER_SERVICE);
// See assets/res/any/layout/presentation_with_media_router_activity.xml for this
// view layout definition, which is being set here as
// the content of our screen.
setContentView(R.layout.presentation_with_media_router_activity);
// Set up the surface view for visual interest.
mSurfaceView = (GLSurfaceView)findViewById(R.id.surface_view);
mSurfaceView.setRenderer(new CubeRenderer(false));
// Get a text view where we will show information about what's happening.
mInfoTextView = (TextView)findViewById(R.id.info);
}
@Override
protected void onResume() {
// Be sure to call the super class.
super.onResume();
// Listen for changes to media routes.
mMediaRouter.addCallback(MediaRouter.ROUTE_TYPE_LIVE_VIDEO, mMediaRouterCallback);
// Update the presentation based on the currently selected route.
mPaused = false;
updatePresentation();
}
@Override
protected void onPause() {
// Be sure to call the super class.
super.onPause();
// Stop listening for changes to media routes.
mMediaRouter.removeCallback(mMediaRouterCallback);
// Pause rendering.
mPaused = true;
updateContents();
}
@Override
protected void onStop() {
// Be sure to call the super class.
super.onStop();
// Dismiss the presentation when the activity is not visible.
if (mPresentation != null) {
Log.i(TAG, "Dismissing presentation because the activity is no longer visible.");
mPresentation.dismiss();
mPresentation = null;
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Be sure to call the super class.
super.onCreateOptionsMenu(menu);
// Inflate the menu and configure the media router action provider.
getMenuInflater().inflate(R.menu.presentation_with_media_router_menu, menu);
MenuItem mediaRouteMenuItem = menu.findItem(R.id.menu_media_route);
MediaRouteActionProvider mediaRouteActionProvider =
(MediaRouteActionProvider)mediaRouteMenuItem.getActionProvider();
mediaRouteActionProvider.setRouteTypes(MediaRouter.ROUTE_TYPE_LIVE_VIDEO);
// Return true to show the menu.
return true;
}
private void updatePresentation() {
// Get the current route and its presentation display.
MediaRouter.RouteInfo route = mMediaRouter.getSelectedRoute(
MediaRouter.ROUTE_TYPE_LIVE_VIDEO);
Display presentationDisplay = route != null ? route.getPresentationDisplay() : null;
// Dismiss the current presentation if the display has changed.
if (mPresentation != null && mPresentation.getDisplay() != presentationDisplay) {
Log.i(TAG, "Dismissing presentation because the current route no longer "
+ "has a presentation display.");
mPresentation.dismiss();
mPresentation = null;
}
// Show a new presentation if needed.
if (mPresentation == null && presentationDisplay != null) {
Log.i(TAG, "Showing presentation on display: " + presentationDisplay);
mPresentation = new DemoPresentation(this, presentationDisplay);
mPresentation.setOnDismissListener(mOnDismissListener);
try {
mPresentation.show();
} catch (WindowManager.InvalidDisplayException ex) {
Log.w(TAG, "Couldn't show presentation! Display was removed in "
+ "the meantime.", ex);
mPresentation = null;
}
}
// Update the contents playing in this activity.
updateContents();
}
private void updateContents() {
// Show either the content in the main activity or the content in the presentation
// along with some descriptive text about what is happening.
if (mPresentation != null) {
mInfoTextView.setText(getResources().getString(
R.string.presentation_with_media_router_now_playing_remotely,
mPresentation.getDisplay().getName()));
mSurfaceView.setVisibility(View.INVISIBLE);
mSurfaceView.onPause();
if (mPaused) {
mPresentation.getSurfaceView().onPause();
} else {
mPresentation.getSurfaceView().onResume();
}
} else {
mInfoTextView.setText(getResources().getString(
R.string.presentation_with_media_router_now_playing_locally,
getWindowManager().getDefaultDisplay().getName()));
mSurfaceView.setVisibility(View.VISIBLE);
if (mPaused) {
mSurfaceView.onPause();
} else {
mSurfaceView.onResume();
}
}
}
private final MediaRouter.SimpleCallback mMediaRouterCallback =
new MediaRouter.SimpleCallback() {
@Override
public void onRouteSelected(MediaRouter router, int type, RouteInfo info) {
Log.d(TAG, "onRouteSelected: type=" + type + ", info=" + info);
updatePresentation();
}
@Override
public void onRouteUnselected(MediaRouter router, int type, RouteInfo info) {
Log.d(TAG, "onRouteUnselected: type=" + type + ", info=" + info);
updatePresentation();
}
@Override
public void onRoutePresentationDisplayChanged(MediaRouter router, RouteInfo info) {
Log.d(TAG, "onRoutePresentationDisplayChanged: info=" + info);
updatePresentation();
}
};
/**
* Listens for when presentations are dismissed.
*/
private final DialogInterface.OnDismissListener mOnDismissListener =
new DialogInterface.OnDismissListener() {
@Override
public void onDismiss(DialogInterface dialog) {
if (dialog == mPresentation) {
Log.i(TAG, "Presentation was dismissed.");
mPresentation = null;
updateContents();
}
}
};
/**
* The presentation to show on the secondary display.
* <p>
* Note that this display may have different metrics from the display on which
* the main activity is showing so we must be careful to use the presentation's
* own {@link Context} whenever we load resources.
* </p>
*/
private final static class DemoPresentation extends Presentation {
private GLSurfaceView mSurfaceView;
public DemoPresentation(Context context, Display display) {
super(context, display);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
// Be sure to call the super class.
super.onCreate(savedInstanceState);
// Get the resources for the context of the presentation.
// Notice that we are getting the resources from the context of the presentation.
Resources r = getContext().getResources();
// Inflate the layout.
setContentView(R.layout.presentation_with_media_router_content);
// Set up the surface view for visual interest.
mSurfaceView = (GLSurfaceView)findViewById(R.id.surface_view);
mSurfaceView.setRenderer(new CubeRenderer(false));
}
public GLSurfaceView getSurfaceView() {
return mSurfaceView;
}
}
}
//END_INCLUDE(activity)

26
samples/ApiDemos/src/com/example/android/apis/app/SecureSurfaceViewActivity.java
View File

@@ -51,6 +51,8 @@ import android.view.WindowManager;
* </p>
*/
public class SecureSurfaceViewActivity extends Activity {
private GLSurfaceView mSurfaceView;
/**
* Initialization of the Activity after it is first created. Must at least
* call {@link android.app.Activity#setContentView setContentView()} to
@@ -69,13 +71,31 @@ public class SecureSurfaceViewActivity extends Activity {
// Set up the surface view.
// We use a GLSurfaceView in this demonstration but ordinary
// SurfaceViews also support the same secure surface functionality.
GLSurfaceView surfaceView = (GLSurfaceView)findViewById(R.id.surface_view);
surfaceView.setRenderer(new CubeRenderer(false));
mSurfaceView = (GLSurfaceView)findViewById(R.id.surface_view);
mSurfaceView.setRenderer(new CubeRenderer(false));
// Make the surface view secure. This must be done at the time the surface view
// is created before the surface view's containing window is attached to
// the window manager which happens after onCreate returns.
// It cannot be changed later.
surfaceView.setSecure(true);
mSurfaceView.setSecure(true);
}
@Override
protected void onResume() {
// Be sure to call the super class.
super.onResume();
// Resume rendering.
mSurfaceView.onResume();
}
@Override
protected void onPause() {
// Be sure to call the super class.
super.onPause();
// Pause rendering.
mSurfaceView.onPause();
}
}