为此,您需要使用service
你这样称呼
Intent svc=new Intent(this, BackgroundSoundService.class);
startService(svc);
public class BackgroundSoundService extends Service {
private static final String TAG = null;
MediaPlayer player;
public IBinder onBind(Intent arg0) {
return null;
}
@Override
public void onCreate() {
super.onCreate();
player = MediaPlayer.create(this, R.raw.trck);
//configure other settings
}
public int onStartCommand(Intent intent, int flags, int startId) {
player.start();
return 1;
}
public void onStart(Intent intent, int startId) {
// TO DO
}
public IBinder onUnBind(Intent arg0) {
// TO DO Auto-generated method
return null;
}
public void onStop() {
}
public void onPause() {
}
@Override
public void onDestroy() {
player.stop();
player.release();
}
}
请在以下位置注册此服务Manifest
.
<service android:enabled="true" android:name=".BackgroundSoundService" />
你可以在小部件中这样做
public class ClockWidget extends AppWidgetProvider {
private final String ACTION_WIDGET_PLAY = "PlaySong";
private final String ACTION_WIDGET_PAUSE = "PauseSong";
private final String ACTION_WIDGET_STOP = "StopSong";
private final int INTENT_FLAGS = 0;
private final int REQUEST_CODE = 0;
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
int[] appWidgetIds) {
RemoteViews controlButtons = new RemoteViews(context.getPackageName(),
R.layout.main);
Intent playIntent = new Intent(this, BackgroundSoundService.class);
Intent pauseIntent = new Intent(this, BackgroundSoundService.class);
Intent stopIntent = new Intent(this, BackgroundSoundService.class);
PendingIntent playPendingIntent = PendingIntent.getService(
this, REQUEST_CODE, playIntent, INTENT_FLAGS);
PendingIntent pausePendingIntent = PendingIntent.getService(
this, REQUEST_CODE, pauseIntent, INTENT_FLAGS);
PendingIntent stopPendingIntent = PendingIntent.getService(
this, REQUEST_CODE, stopIntent, INTENT_FLAGS);
controlButtons.setOnClickPendingIntent(
R.id.btnPlay, playPendingIntent);
controlButtons.setOnClickPendingIntent(
R.id.btnPause, pausePendingIntent);
controlButtons.setOnClickPendingIntent(
R.id.btnStop, stopPendingIntent);
appWidgetManager.updateAppWidget(appWidgetIds, controlButtons);
}
}