我的应用场景是我想跟踪员工的位置。我有一个广播接收器，它收听设备启动广播并注册一个警报管理器。当警报管理器滴答作响时，它会注册两个位置监听器，一个用于监听 gps，另一个用于网络。我希望当我在 onLocationChange() 方法中获得第一个位置更新时，保存位置并取消注册该位置监听器，以便当警报管理器再次滴答时，它不会重复。要取消注册，我将位置监听器作为静态对象在 onLocationChange() 中访问它们。但我发现它没有删除位置监听器。这是我的代码示例:

 public class BootTimeServiceActivator extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        // TODO Auto-generated method stub
        Calendar calendar = Calendar.getInstance();
        AlarmManager am = (AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
        Intent mIntent = new Intent(context, MyBroadCastReceiver.class);
        PendingIntent mPendingIntent = PendingIntent.getBroadcast(context, 0, mIntent, PendingIntent.FLAG_CANCEL_CURRENT);
        am.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), 20 * 60 * 1000, mPendingIntent);


    }

    }

//..........

    public class MyBroadCastReceiver extends BroadcastReceiver{

    public static LocationManager locationManager;
    public static MyLocationListener networkLocationListener;
    public static MyLocationListener gpsLocationListener;



    @Override
    public void onReceive(Context context, Intent intent) {
        // TODO Auto-generated method stub
        Toast.makeText(context, "Alarm has been called...", Toast.LENGTH_SHORT).show();
        initLocationListeners(context);
        registerLocationListeners();

    }

    public void initLocationListeners(Context context) {
        locationManager = (LocationManager)context.getSystemService(Context.LOCATION_SERVICE);
        networkLocationListener = new MyLocationListener(context);
        gpsLocationListener = new MyLocationListener(context);

    }

    public void registerLocationListeners() {
        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 100, 0, gpsLocationListener);
        locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 100, 0, gpsLocationListener);

    }

}

\\.....

    public class MyLocationListener implements LocationListener {

    Context context;

    public MyLocationListener(Context context) {
        this.context = context;
    }

    @Override
    public void onLocationChanged(Location location) {
        if(location != null) {
            SDCardService sdService = new SDCardService(context);
            try {
                sdService.logToDB(location);
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            Log.d("provider",location.getProvider());
            if(location.getProvider().equals(LocationManager.GPS_PROVIDER)) {
                MyBroadCastReceiver.locationManager.removeUpdates(MyBroadCastReceiver.gpsLocationListener);
            }
            else if(location.getProvider().equals(LocationManager.NETWORK_PROVIDER)) {
                MyBroadCastReceiver.locationManager.removeUpdates(MyBroadCastReceiver.networkLocationListener);
            }



        }


    }

谁能指导我哪里错了？

最佳答案

试试这个..

lmNetwork.removeUpdates(networkLocationListener);
lmGps.removeUpdates(gpsLocationListener);

关于android - LocationManager.removeUpdates(listener) 不删除位置监听器，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/12458070/