Integrando sua app Android com Chromecast

Integrando sua app
Android com
Chromecast
Athila Santos
athila@ciandt.com

Formado em Engenharia da Computação pela
Universidade Federal de Itajubá em 2007. Trabalho
com desenvolvimento Mobile desde então e com
Android desde 2009 (Android 1.5)
26

Cast device
Provedor de
conteúdo

Cast device
Renderizador
Provedor de
conteúdo

Cast device
Renderizador
Controle
Provedor de
conteúdo

Amazon Fire TV
Roku 3 Apple TV Google
Chromecast
Processador Quad core Dual core Single core Single core
Memória 2 GB 512 MB 512 MB 512 MB
Controle
Comando por
voz; controle
físico
Controle físico;
app iOS
disponível
Controle físico;
app iOS
Controlado por
app (iOS,
Android, Chrome)
HDMI SIM SIM SIM SIM
Preço $99 $99 $99 $35

Chromecast: Requisitos
● Sender app

● Sender app
● Receiver app

● Sender app
● Receiver app
Default Receiver (pronto para uso)

● Sender app
● Receiver app
Styled Media Receiver
Custom Receiver

● Sender app
● Receiver app
Styled Media Receiver
Custom Receiver
Web browser limitado!

Chromecast: Application lifecycle

App
ID

App
ID
App
ID

App
ID
App
ID
URL

App
ID
App
ID
URL
URL

App
ID
App
ID
URL
URL
HTML

App
ID
App
ID
URL
URL
HTML
Canal de dados

Sender app: Dependências
● Android Support Library v7

● Android Support Media Router Library

● Android Support Media Router Library
● Google Play Services

Sender app: Os passos para o sucesso...
1. Descoberta de dispositivos
2. Gerenciamento de sessão
3. Transimissão de dados

Sender app: Descoberta de dispositivos

Sender app: Descoberta de dispositivos
<?xml version="1.0" encoding="utf-8"?><menu
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto" >
<item
android:id="@+id/media_route_menu_item"
android:title="@string/media_route_menu_title"
app:actionProviderClass="android.support.v7.app.MediaRouteActionProvider"
app:showAsAction="always"/></menu>

Descoberta de dispositivos: Media Router Selector

public class MediaRouterPlaybackActivity extends ActionBarActivity {
private MediaRouteSelector mSelector;
@Override
protected void onCreate(Bundle savedInstanceState) {
(...)
// Create a route selector for the type of routes your app supports.
mSelector = new MediaRouteSelector.Builder()
// These are the framework-supported intents
.addControlCategory(MediaControlIntent.CATEGORY_LIVE_AUDIO)
.addControlCategory(MediaControlIntent.CATEGORY_LIVE_VIDEO)
.addControlCategory(MediaControlIntent.CATEGORY_REMOTE_PLAYBACK)
.build();
(...)
}
}

public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
// Inflate the menu and configure the media router action provider.
getMenuInflater().inflate(R.menu.sample_media_router_menu, menu);
// Attach the MediaRouteSelector to the menu item
MenuItem mediaRouteMenuItem = menu.findItem(R.id.media_route_menu_item);
MediaRouteActionProvider mediaRouteActionProvider =
(MediaRouteActionProvider) MenuItemCompat.getActionProvider(mediaRouteMenuItem);
mediaRouteActionProvider.setRouteSelector(mSelector);
// Return true to show the menu.
return true;
}

Gerenciamento de sessão: Media Router Callback
private final MediaRouter.Callback mMediaRouterCallback = new MediaRouter.Callback() {
@Override
public void onRouteSelected(MediaRouter router, RouteInfo route) {
}
@Override
public void onRouteUnselected(MediaRouter router, RouteInfo route) {
}
@Override
public void onRoutePresentationDisplayChanged(MediaRouter router, RouteInfo route) {
}
}

Gerenciamento de sessão: Media Router Callback
public class MediaRouterPlaybackActivity extends ActionBarActivity {
mMediaRouter = MediaRouter.getInstance(this);
}
public void onStart() {
mMediaRouter.addCallback(mSelector, mMediaRouterCallback,
MediaRouter.CALLBACK_FLAG_REQUEST_DISCOVERY);
}
public void onStop() {
mMediaRouter.removeCallback(mMediaRouterCallback);
super.onStop();
}
}

Transmissão de dados: Mensagem genérica
Cast.CastApi.sendMessage (com.google.android.gms.common.api.GoogleApiClient, NAMESPACE, message)
.setResultCallback (
new ResultCallback<Status>() {
@Overridepublic void onResult(Status result) {
if (!result.isSuccess()) {
Log.e(TAG, "Sending message failed");
}
}
});

Transmissão de dados: Remote playback
Bundle mediaInfo = new Bundle();
mediaInfo.putString(MediaMetadata.KEY_TITLE, "Big Buck Bunny");
mediaInfo.putString(MediaMetadata.KEY_SUBTITLE, "Blender Foundation");
mediaInfo.putString(MediaMetadata.KEY_STUDIO, "Fusce id nisi turpis. Praesent viverra
bibendum semper. Donec tristique, orci");
(...)
}

Transmissão de dados: Remote playback
public void onRouteSelected(MediaRouter router, RouteInfo route) {
mRemotePlaybackClient = new RemotePlaybackClient(this, route);
mRemotePlaybackClient.play(Uri.parse("http://meu_video.mp4"),
"video/mp4", mediaInfo, 0, null, new ItemActionCallback() {
@Override
public void onResult(Bundle data, String sessionId, MediaSessionStatus sessionStatus,
String itemId, MediaItemStatus itemStatus) {
logStatus("play: succeeded for item " + itemId);
}
@Override
public void onError(String error, int code, Bundle data) {
}
});
}

Google Cast User Guidelines
https://developers.google.com/cast/docs/design_checklist#sender

Integrando sua app Android com Chromecast

CastCompanionLibrary - Registrando receiver app
public class CastApplication extends Application {
private static VideoCastManager mCastMgr = null;
public static VideoCastManager getCastManager(Context context) {
if (null == mCastMgr) {
mCastMgr = VideoCastManager.initialize(context, APPLICATION_ID, null, null);
}
mCastMgr.setContext(context);
return mCastMgr;
}
}

CastCompanionLibrary - Registrando receiver app
if (null == mCastMgr) {
}
mCastMgr.setContext(context);
return mCastMgr;
}
}
Default Receiver App:
CastMediaControlIntent.DEFAULT_MEDIA_RECEIVER_APPLICATION_ID

CastCompanionLibrary - Descoberta de devices
public class PlayerActivity extends ActionBarActivity {
private VideoCastManager mCastManager;
private MediaInfo mSelectedMedia;
private VideoCastConsumerImpl mCastConsumer;
mCastManager = CastApplication.getCastManager(this);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
getMenuInflater().inflate(R.menu.main, menu);
mCastManager.addMediaRouterButton(menu, R.id.media_route_menu_item);
return true;
}
}

CastCompanionLibrary - Gerenciando sessão
mCastConsumer = new VideoCastConsumerImpl() {
public void onApplicationConnected(ApplicationMetadata appMetadata, String sessionId,
boolean wasLaunched) { }
public void onApplicationDisconnected(int errorCode) { }
public void onDisconnected() { }
public void onRemoteMediaPlayerMetadataUpdated() { }
public void onFailed(int resourceId, int statusCode) { }
public void onConnectionSuspended(int cause) { }
public void onConnectivityRecovered() { }
};
}
protected void onResume() {
super.onResume();
mCastManager.addVideoCastConsumer(mCastConsumer);
}

CastCompanionLibrary - Reproduzindo vídeo remoto
Bundle mediaInfo = new Bundle();
mediaInfo.putString(MediaMetadata.KEY_STUDIO, "Fusce id nisi turpis. Praesent viverra bibendum
semper. Donec tristique, orci");
mediaInfo.putString(com.google.sample.castcompanionlibrary.utils.Utils.KEY_URL, http://url.mp4);
mediaInfo.putString(com.google.sample.castcompanionlibrary.utils.Utils.KEY_CONTENT_TYPE,
"video/mp4");
ArrayList<String> images = new ArrayList<String>();
images.add("http://image_url_480");
mediaInfo.putStringArrayList(com.google.sample.castcompanionlibrary.utils.Utils.KEY_IMAGES,
images);
mSelectedMediaInfo = com.google.sample.castcompanionlibrary.utils.Utils.toMediaInfo(mediaInfo);
}

mediaInfo.putString(MediaMetadata.KEY_STUDIO, "Fusce id nisi turpis. Praesent viverra bibendum
semper. Donec tristique, orci");

public void onApplicationConnected(ApplicationMetadata appMetadata,
String sessionId, boolean wasLaunched) {
if (null != mSelectedMedia) {
mCastManager.startCastControllerActivity(this, mSelectedMedia, 0, true);
finish();
return;
}
}

CCL - CastControllerActivity

CCL - CastControllerActivity
<activity
android:name="com.google.sample.castcompanionlibrary.cast.player.VideoCastControllerActivity"
android:launchMode="singleTask"
android:screenOrientation="portrait"
android:theme="@style/Theme.CastVideoOverlayYellow" >
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="<parentActivity>" />
<intent-filter>
<action android:name="android.intent.action.MAIN" />
</intent-filter>
</activity>

CCL - MiniController
<com.google.sample.castcompanionlibrary.widgets.MiniController
android:id="@+id/miniController1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:visibility="gone" >
</com.google.sample.castcompanionlibrary.widgets.MiniController>

CCL - MiniController
super.onCreate(savedInstanceState);
// -- Adding MiniController
mMini = (MiniController) findViewById(R.id.miniController1);
mCastManager.addMiniController(mMini);
}
protected void onDestroy() {
if (null != mCastManager) {
mCastManager.removeMiniController(mMini);
}
super.onDestroy();
}

CCL - OnGoing Notification
<receiver android:name="com.google.sample.castcompanionlibrary.remotecontrol.VideoIntentReceiver" >
<intent-filter>
<action android:name="com.google.sample.castcompanionlibrary.action.toggleplayback" />
<action android:name="com.google.sample.castcompanionlibrary.action.stop" />
</intent-filter>
</receiver>
<service
android:name="com.google.sample.castcompanionlibrary.notification.VideoCastNotificationService"
android:exported="false" >
<intent-filter>
<action android:name="com.google.sample.castcompanionlibrary.action.toggleplayback" />
<action android:name="com.google.sample.castcompanionlibrary.action.stop" />
<action android:name="com.google.sample.castcompanionlibrary.action.notificationvisibility" />
</intent-filter></service>

CCL - OnGoing Notification
protected void onResume() {
mCastManager = CastApplication.getCastManager(this);
mCastManager.incrementUiCounter();
}
protected void onPause() {
mCastManager.decrementUiCounter();
}
mCastMgr.enableFeatures(VideoCastManager.FEATURE_NOTIFICATION );
return mCastMgr;
}
}

CCL - LockScreen
mCastMgr.enableFeatures(VideoCastManager.FEATURE_NOTIFICATION |
VideoCastManager.FEATURE_LOCKSCREEN);
return mCastMgr;
}
}

Obrigado!
Athila Santos
athila@ciandt.com
athilahs@gmail.com
br.linkedin.com/pub/athila-henrique-dos-santos/
6/41/744/

Integrando sua app Android com Chromecast

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