调用stopService()时,Android服务不会停止

Question

我有一个停止我已经开始的服务的问题.

用户登录时会调用该服务,并开始跟踪用户的位置.这工作正常.当用户按下注销按钮并成功注销时,该服务将停止.

这是一个Android服务,通过HTML按钮通过JavaScript界面​​调用.

这是我的Main Class,它包含启动和停止服务的方法:

public class CasesMain extends DroidGap {
Intent gpsTracking;
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    super.init();

    appView.addJavascriptInterface(this, "StartGPS");

    super.loadUrl(Config.getStartUrl());
}
public void startGPS(){
    gpsTracking = new Intent(this, MyService.class);
    startService(gpsTracking);
}

public void stopGPS(){
    stopService( gpsTracking );
}

}

这是MyService类:

public class MyService extends Service {
private LocationManager locManager;
private LocationListener locListener = new myLocationListener();

private boolean gps_enabled = false;
private boolean network_enabled = false;

private Handler handler = new Handler();
Thread t;

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

@Override
public void onCreate() {
}

@Override
public void onDestroy() {
}

@Override
public void onStart(Intent intent, int startid) {
}

public int onStartCommand(Intent intent, int flags, int startId) {

    Toast.makeText(getBaseContext(), "Service Started", Toast.LENGTH_SHORT)
            .show();

    final Runnable r = new Runnable() {
        public void run() {
            location();
            handler.postDelayed(this, 10000);
        }
    };
    handler.postDelayed(r, 10000);
    return START_STICKY;
}

public void location() {
    locManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

    try {
        gps_enabled = locManager
                .isProviderEnabled(LocationManager.GPS_PROVIDER);
    } catch (Exception ex) {
    }
    try {
        network_enabled = locManager
                .isProviderEnabled(LocationManager.NETWORK_PROVIDER);
    } catch (Exception ex) {
    }
    if (gps_enabled) {
        locManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0,
                0, locListener);
    }
    if (network_enabled) {
        locManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER,
                0, 0, locListener);
    }
}

private class myLocationListener implements LocationListener {
    double lat_old = 0.0;
    double lon_old = 0.0;
    double lat_new;
    double lon_new;

    @Override
    public void onLocationChanged(Location location) {

        if (location != null) {
            locManager.removeUpdates(locListener);
            lon_new = location.getLongitude();
            lat_new = location.getLatitude();
            String longitude = "Longitude: " + location.getLongitude();
            String latitude = "Latitude: " + location.getLatitude();
            Log.v("Debug",  "Latt: " + latitude + " Long: " + longitude);
            Toast.makeText(getApplicationContext(),
                    longitude + "\n" + latitude, Toast.LENGTH_SHORT).show();
            lat_old = lat_new;
            lon_old = lon_new;
        }
    }

    @Override
    public void onProviderDisabled(String provider) {
    }

    @Override
    public void onProviderEnabled(String provider) {
    }

    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) {
    }
}

}

这是我停止服务的呼吁: window.StartGPS.stopGPS();

开始工作完美,但当我退出时,应用程序继续显示字符和长的消息意味着调用stopService()要么不起作用,要么不被调用.

任何人都可以看到我的错误在哪里或出了什么问题？

任何帮助将不胜感激!

固定 添加修复它handler.removeCallbacksAndMessages(null);的onDestroy()方法MyService给我.

Answer 1

任何人都可以看到我的错误在哪里或出了什么问题？

你有一个空onDestroy()方法.你需要removeCallbacks()在Handler那里打电话.