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Ho scritto Music Player completo per lo streaming di musica dal Web, ma non so come inserire i controlli del lettore multimediale in Notifica e quando lo schermo è Blocco.Controlli di Media Player in Notification
Seguo this tutorial per mostrare controlli nella barra di notifica, ma ancora non ottenere Come usare stessa funzionalità nel mio programma, ho importato classi richieste come: NotificationService.java e Constants.java.
Questo è quello che sto ottenendo in Notifica Bar:
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Sono confuso. Perché non sono sempre il titolo della canzone che sto giocando, perché pausa, prev e prossimi pulsanti non funzionano, ecc ...
NotificationService.java:
public class NotificationService extends Service {
Notification status;
private final String LOG_TAG = "NotificationService";
@Override
public void onDestroy() {
super.onDestroy();
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
if (intent.getAction().equals(Constants.ACTION.STARTFOREGROUND_ACTION)) {
showNotification();
Toast.makeText(this, "Service Started", Toast.LENGTH_SHORT).show();
} else if (intent.getAction().equals(Constants.ACTION.PREV_ACTION)) {
Toast.makeText(this, "Clicked Previous", Toast.LENGTH_SHORT).show();
Log.i(LOG_TAG, "Clicked Previous");
} else if (intent.getAction().equals(Constants.ACTION.PLAY_ACTION)) {
Toast.makeText(this, "Clicked Play", Toast.LENGTH_SHORT).show();
Log.i(LOG_TAG, "Clicked Play");
} else if (intent.getAction().equals(Constants.ACTION.NEXT_ACTION)) {
Toast.makeText(this, "Clicked Next", Toast.LENGTH_SHORT).show();
Log.i(LOG_TAG, "Clicked Next");
} else if (intent.getAction().equals(Constants.ACTION.STOPFOREGROUND_ACTION)) {
Log.i(LOG_TAG, "Received Stop Foreground Intent");
Toast.makeText(this, "Service Stoped", Toast.LENGTH_SHORT).show();
stopForeground(true);
stopSelf();
}
return START_STICKY;
}
private void showNotification() {
// Using RemoteViews to bind custom layouts into Notification
RemoteViews views = new RemoteViews(getPackageName(), R.layout.status_bar);
RemoteViews bigViews = new RemoteViews(getPackageName(), R.layout.status_bar_expanded);
// showing default album image
views.setViewVisibility(R.id.status_bar_icon, View.VISIBLE);
views.setViewVisibility(R.id.status_bar_album_art, View.GONE);
bigViews.setImageViewBitmap(R.id.status_bar_album_art,
Constants.getDefaultAlbumArt(this));
Intent notificationIntent = new Intent(this, MusicPlayerActivity.class);
notificationIntent.setAction(Constants.ACTION.MAIN_ACTION);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
| Intent.FLAG_ACTIVITY_CLEAR_TASK);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
Intent previousIntent = new Intent(this, NotificationService.class);
previousIntent.setAction(Constants.ACTION.PREV_ACTION);
PendingIntent ppreviousIntent = PendingIntent.getService(this, 0, previousIntent, 0);
Intent playIntent = new Intent(this, NotificationService.class);
playIntent.setAction(Constants.ACTION.PLAY_ACTION);
PendingIntent pplayIntent = PendingIntent.getService(this, 0, playIntent, 0);
Intent nextIntent = new Intent(this, NotificationService.class);
nextIntent.setAction(Constants.ACTION.NEXT_ACTION);
PendingIntent pnextIntent = PendingIntent.getService(this, 0, nextIntent, 0);
Intent closeIntent = new Intent(this, NotificationService.class);
closeIntent.setAction(Constants.ACTION.STOPFOREGROUND_ACTION);
PendingIntent pcloseIntent = PendingIntent.getService(this, 0, closeIntent, 0);
views.setOnClickPendingIntent(R.id.status_bar_play, pplayIntent);
bigViews.setOnClickPendingIntent(R.id.status_bar_play, pplayIntent);
views.setOnClickPendingIntent(R.id.status_bar_next, pnextIntent);
bigViews.setOnClickPendingIntent(R.id.status_bar_next, pnextIntent);
views.setOnClickPendingIntent(R.id.status_bar_prev, ppreviousIntent);
bigViews.setOnClickPendingIntent(R.id.status_bar_prev, ppreviousIntent);
views.setOnClickPendingIntent(R.id.status_bar_collapse, pcloseIntent);
bigViews.setOnClickPendingIntent(R.id.status_bar_collapse, pcloseIntent);
views.setImageViewResource(R.id.status_bar_play,
R.drawable.apollo_holo_dark_pause);
bigViews.setImageViewResource(R.id.status_bar_play,
R.drawable.apollo_holo_dark_pause);
views.setTextViewText(R.id.status_bar_track_name, "Song Title");
bigViews.setTextViewText(R.id.status_bar_track_name, "Song Title");
views.setTextViewText(R.id.status_bar_artist_name, "Artist Name");
bigViews.setTextViewText(R.id.status_bar_artist_name, "Artist Name");
bigViews.setTextViewText(R.id.status_bar_album_name, "Album Name");
status = new Notification.Builder(this).build();
status.contentView = views;
status.bigContentView = bigViews;
status.flags = Notification.FLAG_ONGOING_EVENT;
status.icon = R.drawable.ic_launcher;
status.contentIntent = pendingIntent;
startForeground(Constants.NOTIFICATION_ID.FOREGROUND_SERVICE, status);
}
}
Constants.java:
public class Constants {
public interface ACTION {
public static String MAIN_ACTION = "com.marothiatechs.customnotification.action.main";
public static String INIT_ACTION = "com.marothiatechs.customnotification.action.init";
public static String PREV_ACTION = "com.marothiatechs.customnotification.action.prev";
public static String PLAY_ACTION = "com.marothiatechs.customnotification.action.play";
public static String NEXT_ACTION = "com.marothiatechs.customnotification.action.next";
public static String STARTFOREGROUND_ACTION = "com.marothiatechs.customnotification.action.startforeground";
public static String STOPFOREGROUND_ACTION = "com.marothiatechs.customnotification.action.stopforeground";
}
public interface NOTIFICATION_ID {
public static int FOREGROUND_SERVICE = 101;
}
public static Bitmap getDefaultAlbumArt(Context context) {
Bitmap bm = null;
BitmapFactory.Options options = new BitmapFactory.Options();
try {
bm = BitmapFactory.decodeResource(context.getResources(),
R.drawable.default_album_art, options);
} catch (Error ee) {
} catch (Exception e) {
}
return bm;
}
}
MusicPlayerActivity.java:
public class MusicPlayerActivity extends Activity {
// ....
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_music_player);
mediaPlayer = new MediaPlayer();
audiosArrayList = new ArrayList<MusicPlayer>();
listview = (ListView) findViewById(R.id.list_slidermenu);
// ...
btnPlay.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
try {
play();
} catch (Exception exception){
Log.v("exception:play", exception.toString());
}
}
});
btnPause.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
try {
pause();
} catch (Exception exception){
Log.v("exception:pause", exception.toString());
}
}
});
btnNext.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
try {
next();
} catch (Exception exception){
Log.v("exception:next", exception.toString());
}
}
});
btnPrev.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
try {
prev();
} catch (Exception exception){
Log.v("exception:pause", exception.toString());
}
}
});
new JSONAsyncTask().execute("http://myurl/json/musics.json");
listview.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
if (mediaPlayer != null && mediaPlayer.isPlaying())
try {
mediaPlayer.stop();
} catch (Exception e) {
}
play();
}
});
......
}
// ...
public void startService(View v) {
Intent serviceIntent = new Intent(MusicPlayerActivity.this, NotificationService.class);
serviceIntent.setAction(Constants.ACTION.STARTFOREGROUND_ACTION);
startService(serviceIntent);
}
controllo di questo codice https://github.com/googlesamples/android-UniversalMusicPlayer –