stopForeground(真)调用一个服务，给我一个类名为空的问题

Question

我就是这样开始服务的：

    public void startService(){
        if (!isRunningInForeground()) {
            Log.i("#foregroundservice", "Starting service");
            bindIntent = new Intent(PSLocationService.this, PSLocationService.class);
            startService(bindIntent);
        }
    }

我在onStartCommand上这样做：

   @Override
public int onStartCommand(Intent intent, int flags, int startId) {
    PSLocationService.startId = startId;
    if (PSApplicationClass.getInstance().isAutoPilotAllowed() || PSTrip.getActiveTrip() != null) {
        Log.i("#foregroundservice", "onStartCommand");
        Intent notificationIntent = new Intent(this, PSTimelineFragmentsActivity.class);
        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
        Notification notification = new Notification.Builder(this)
                .setPriority(Notification.PRIORITY_MAX)
                .setContentTitle(getText(R.string.passenger_name))
                .setContentText(getText(R.string.getStarted_switch_on_toplabel))
                .setSmallIcon(R.drawable.notification_icon)
                .setContentIntent(pendingIntent)
                .build();
        startForeground(1338, notification);
    }
    return super.onStartCommand(intent, flags, startId);
}

当我断开与googleApiClient的连接时，我想这样阻止它：

  if (isRunningInForeground()) {
        Log.i("#foregroundservice", "Stopping service: " + bindIntent);
        stopForeground(true);
        stopSelf();
    }

它总是在stopForeground(true)方法处崩溃，出现此错误：

11-10 12:59:50.026: E/AndroidRuntime(10731): java.lang.NullPointerException: class name is null
11-10 12:59:50.026: E/AndroidRuntime(10731):    at android.content.ComponentName.<init>(ComponentName.java:114)
11-10 12:59:50.026: E/AndroidRuntime(10731):    at android.app.Service.stopForeground(Service.java:671)
11-10 12:59:50.026: E/AndroidRuntime(10731):    at nl.hgrams.passenger.core.tracking.PSLocationService.disconnectLocationClient(PSLocationService.java:272)

Answer 1

通过调用活动类中的stopForeground(true) (而不是我的ApplicationClass )，确实成功地使其工作。另外，我没有使用stopForeground，而是这样做：

Intent serviceIntent = new Intent(context, PSLocationService.class);
context.stopService(serviceIntent);