Java 当应用程序被破坏或进入后台时，Android定位服务将停止工作

我正在构建一个基于位置的应用程序，并创建了一个在后台工作的服务。当应用程序进入后台或被破坏时，若我在我的服务类中循环播放音频，那个么它工作得非常好

即使我销毁了应用程序，音频仍在继续播放。为了获取用户位置，我正在使用FusedLocationProviderClient API，它也可以从服务中工作，但只有当应用程序位于前台时，当应用程序用户转到其他应用程序或销毁应用程序时，它无法获取位置，但媒体播放器在同一服务中工作正常

我的服务班

根据报告：

此方法适用于前台用例。对于后台用例，建议使用该方法的PendingEvent版本，请参阅requestLocationUpdatesLocationRequest，PendingEvent

看一看悬挂式帐篷

public class ServiceClass extends Service {

    private MediaPlayer mediaplayer;
    private FusedLocationProviderClient fusedLocationProviderClient;
    private LocationRequest locationRequest;
    private Context mContext;
    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {

        //Toast.makeText(this, "Service Started", Toast.LENGTH_SHORT).show();
        mContext = this;
        mediaplayer = MediaPlayer.create(this,Settings.System.DEFAULT_RINGTONE_URI);
        mediaplayer.setLooping(true);
        mediaplayer.start();
        getLocation();

        return START_STICKY;
    }

    public void getLocation() {

        Toast.makeText(mContext, "Engine X started YO", Toast.LENGTH_SHORT).show();

        fusedLocationProviderClient = new FusedLocationProviderClient(this);
        locationRequest = new LocationRequest();
        locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
        locationRequest.setFastestInterval(1000);
        locationRequest.setInterval(1000);

        fusedLocationProviderClient.requestLocationUpdates(locationRequest, new LocationCallback(){

            @Override
            public void onLocationResult(LocationResult locationResult) {
                super.onLocationResult(locationResult);
                 Log.d("X_loc_BAck", ""+locationResult.getLastLocation().getAccuracy());
                Toast.makeText(mContext, ""+locationResult.getLastLocation().getLatitude(), Toast.LENGTH_SHORT).show();



            }
        },getMainLooper());

    }



    @Override
    public void onDestroy() {
        super.onDestroy();
        mediaplayer.stop();
        //Toast.makeText(this, "Service Desttroyed", Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onTaskRemoved(Intent rootIntent) {
        super.onTaskRemoved(rootIntent);
        mediaplayer.stop();
        Intent i = new Intent(this, ServiceStopped.class);
        sendBroadcast(i);
        //Toast.makeText(this, "Service Task Removed", Toast.LENGTH_SHORT).show();
    }

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }
}