安卓:GPS失去定位

Question

我在Android上实现GPS时遇到问题。问题是GPS丢失定位。位置图标正在脉冲，几秒钟后吐司显示位置，然后GPS失去定位并尝试再次连接。

我的服务：

public class LocationService extends Service {
    private static final long MIN_TIME = 15000;
    private static final float MIN_DISTANCE = 1;
    private final IBinder binder = new LocalBinder();
    private LocationManager locationManager;
    @Override
    public void onCreate() {
        super.onCreate();
        locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);     
    }
    @Override
    public IBinder onBind(Intent intent) {
        return binder;
    }
    public class LocalBinder extends Binder {
        LocationService getService() {
            return LocationService.this;
        }
    }
    public void setListener(LocationListener listener) {
        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, MIN_TIME, MIN_DISTANCE, listener);
    }
    public void removeListener(LocationListener listener) {
        locationManager.removeUpdates(listener);
    }
}

我的活动：

public class MainMapActivity extends CustomMapActivity implements LocationListener {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.map_layout);
        Intent i = new Intent(this, LocationService.class);
        startService(i);
        bindService(i, conn, BIND_AUTO_CREATE);
    }
    @Override
    public void onDestroy() {
        super.onDestroy();
        unbindService(conn);
    }
    ServiceConnection conn = new ServiceConnection() {
        @Override
        public void onServiceDisconnected(ComponentName name) {
        }
        @Override
        public void onServiceConnected(ComponentName name, IBinder service) {
            // TODO Auto-generated method stub
            serv = ((LocalBinder)service).getService();
            serv.setListener(MainMapActivity.this);
        }
    };
    @Override
    public void onLocationChanged(Location location) {
        Toast.makeText(this, Double.toString(location.getLatitude())+Double.toString(location.getLongitude()),     Toast.LENGTH_SHORT).show();
    }
    @Override
    public void onProviderDisabled(String provider) {
    }
    @Override
    public void onProviderEnabled(String provider) {
    }
    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) {
    }
}

这不是设备的问题，因为在谷歌地图应用程序中它可以完美地工作。

感谢您的帮助

Answer 1

您已将 15 秒的最小时间参数传递给位置侦听器。在大多数设备/操作系统版本中，这将在重新启用之前关闭 GPS 一段时间。