我最近开始研究API Chromecast并设法制作一个简单的连接示例。但是，我仍然无法为电视发送一个helloword。有没有人有一个简单的例子？
这是我的代码：
public class CastTest extends ActionBarActivity{
private static final String TAG = CastTest.class
.getSimpleName();
private MediaRouter mMediaRouter;
private MediaRouteSelector mMediaRouteSelector;
private MediaRouter.Callback mMediaRouterCallback;
private CastDevice mSelectedDevice;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.cast);
mMediaRouter = MediaRouter.getInstance(getApplicationContext());
// Create a MediaRouteSelector for the type of routes your app supports
mMediaRouteSelector = new MediaRouteSelector.Builder()
.addControlCategory(
CastMediaControlIntent.categoryForCast("794B7BBF")).build();
// Create a MediaRouter callback for discovery events
mMediaRouterCallback = new MyMediaRouterCallback();
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
Toast.makeText(CastTest.this,
"Teste", Toast.LENGTH_LONG).show();
super.onActivityResult(requestCode, resultCode, data);
}
@Override
protected void onResume() {
super.onResume();
// Add the callback to start device discovery
mMediaRouter.addCallback(mMediaRouteSelector, mMediaRouterCallback,
MediaRouter.CALLBACK_FLAG_REQUEST_DISCOVERY);
}
@Override
protected void onPause() {
// Remove the callback to stop device discovery
mMediaRouter.removeCallback(mMediaRouterCallback);
super.onPause();
}
//Adicionar as opções para o usuário escolher
//Por exemplo: um chromecast ou um dispositivo wireless
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
getMenuInflater().inflate(R.menu.main, menu);
MenuItem mediaRouteMenuItem = menu.findItem(R.id.media_route_menu_item);
MediaRouteActionProvider mediaRouteActionProvider = (MediaRouteActionProvider) MenuItemCompat
.getActionProvider(mediaRouteMenuItem);
// Set the MediaRouteActionProvider selector for device discovery.
mediaRouteActionProvider.setRouteSelector(mMediaRouteSelector);
return true;
}
private class MyMediaRouterCallback extends MediaRouter.Callback {
@Override
public void onRouteSelected(MediaRouter router, RouteInfo info) {
Log.d(TAG, "onRouteSelected");
// Handle route selection.
mSelectedDevice = CastDevice.getFromBundle(info.getExtras());
// Just display a message for now; In a real app this would be the
// hook to connect to the selected device and launch the receiver
// app
Toast.makeText(CastTest.this,
"Este aplicativo não vai lançar uma aplicação", Toast.LENGTH_LONG).show();
}
@Override
public void onRouteUnselected(MediaRouter router, RouteInfo info) {
Log.d(TAG, "onRouteUnselected: info=" + info);
mSelectedDevice = null;
}
}
public void voltar(View v) {
Intent i = new Intent();
i = new Intent(this, Main.class);
startActivity(i);
this.finish();
}
}