如何打开前台服务通知

Question

我有一个前台服务通知，我希望当用户关闭应用程序并按下通知再次打开应用程序时。我实施了onclicklistener使用onClick((方法，但它什么也没做。如果这不可能，我希望"播放"按钮显示在通知中，因为它只在我展开通知时显示。

这是服务类别：

public class MyForeGroundService extends Service {
public MyForeGroundService() {
}
@Override
public IBinder onBind(Intent intent) {
// TODO: Return the communication channel to the service.
throw new UnsupportedOperationException("Not yet implemented");
}
@Override
public void onCreate() {
super.onCreate();
Log.d(TAG_FOREGROUND_SERVICE, "My foreground service onCreate().");
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
if (intent != null) {
String action = intent.getAction();
switch (action) {
case ACTION_START_FOREGROUND_SERVICE:
startForegroundService();
Toast.makeText(getApplicationContext(), "Foreground service is started.", Toast.LENGTH_LONG).show();
break;
case ACTION_STOP_FOREGROUND_SERVICE:
stopForegroundService();
Toast.makeText(getApplicationContext(), "Foreground service is stopped.", Toast.LENGTH_LONG).show();
break;
case ACTION_PLAY:
Toast.makeText(getApplicationContext(), "You click Play button.", Toast.LENGTH_LONG).show();
break;
case ACTION_PAUSE:
Toast.makeText(getApplicationContext(), "You click Pause button.", Toast.LENGTH_LONG).show();
break;
}
}
return super.onStartCommand(intent, flags, startId);
}
/* Used to build and start foreground service. */
private void startForegroundService() {
Log.d(TAG_FOREGROUND_SERVICE, "Start foreground service.");
// Create notification default intent.
Intent intent = new Intent();
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);
// Create notification builder.
NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
// Make notification show big text.
NotificationCompat.BigTextStyle bigTextStyle = new NotificationCompat.BigTextStyle();
bigTextStyle.setBigContentTitle("Music player implemented by foreground service.");
bigTextStyle.bigText("Android foreground service is a android service which can run in foreground always, it can be controlled by user via notification.");
// Set big text style.
builder.setStyle(bigTextStyle);
builder.setWhen(System.currentTimeMillis());
builder.setSmallIcon(R.mipmap.ic_launcher);
Bitmap largeIconBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.strava);
builder.setLargeIcon(largeIconBitmap);
// Make the notification max priority.
builder.setPriority(Notification.PRIORITY_MAX);
// Make head-up notification.
builder.setFullScreenIntent(pendingIntent, true);
// Add Play button intent in notification.
Intent playIntent = new Intent(this, MyForeGroundService.class);
playIntent.setAction(ACTION_PLAY);
PendingIntent pendingPlayIntent = PendingIntent.getService(this, 0, playIntent, 0);
NotificationCompat.Action playAction = new NotificationCompat.Action(android.R.drawable.ic_media_play, "Play", pendingPlayIntent);
builder.addAction(playAction);
// Build the notification.
Notification notification = builder.build();
// Start foreground service.
startForeground(1, notification);
}
private void stopForegroundService() {
Log.d(TAG_FOREGROUND_SERVICE, "Stop foreground service.");
// Stop foreground service and remove the notification.
stopForeground(true);
// Stop the foreground service.
stopSelf();
}
}

Answer 1

因此，要在通知中添加"onClick"效果，您应该在NotificationCompat.Builder.中使用".setContentIntent(pendingIntent("方法

从我读到的内容来看，播放按钮始终可见有点棘手，有人说"setPriority(Notification.PRIORITY_MAX(+setWhen(0("可以解决这个问题，也有人说这取决于设备，如果你有其他通知，你是否连接到USB等，并且没有单一的工作解决方案。