Question

我的FusedLocationProviderClient在我调用

后没有停止

fusedLocationClient.removeLocationUpdates(locationCallback);

GPS位置图标会无限期地显示在通知栏中，直到我手动终止服务。

我也在onDestroy()方法中调用stopLocationUpdates。

要开始，我打电话：

fusedLocationClient.requestLocatonUpdates(locationRequest, locationCallback, null);

locationCallback是：

locationCallback = new LocationCallback() {
        @Override
        public void onLocationResult(LocationResult locationResult) {
            Location lastLocation = null;

            for (Location location : locationResult.getLocations()) {

                if (lastLocation != null) {
                    if (location.getTime() < lastLocation.getTime()) {
                        lastLocation = location;
                    }
                } else {
                    lastLocation = location;
                }
            }
            if (lastLocation != null) {
                String msg1 = "Best location: http://www.google.com/maps/search/?api=1&query=" + lastLocation.getLatitude() + "%2C" + lastLocation.getLongitude();
                sendSms(lastReceivedNumber, msg1);
            }

            stopLocationUpdates();
        }
    };

以下是stopLocationUpdates()：

private void stopLocationUpdates() {
    if (fusedLocationClient != null) {
        fusedLocationClient.removeLocationUpdates(locationCallback);
    }
    fusedLocationClient = null;

}

我无法理解为什么它不会停止。

任何帮助表示感谢。

Answer 1

这是我做的：

private void startLocationUpdates() {
    fusedLocationClient = new FusedLocationProviderClient(this);
    locationRequest = new LocationRequest().setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
    locationCallback = new LocationCallback() {
        @Override
        public void onLocationResult(LocationResult locationResult) {
            Location lastLocation = null;

            for (Location location : locationResult.getLocations()) {

                if (lastLocation != null) {
                    if (location.getTime() < lastLocation.getTime()) {
                        lastLocation = location;
                    }
                } else {
                    lastLocation = location;
                }
            }
            if (lastLocation != null) {
                String msg1 = "Best location: http://www.google.com/maps/search/?api=1&query=" + lastLocation.getLatitude() + "%2C" + lastLocation.getLongitude();
                sendSms(lastReceivedNumber, msg1);
            }

            stopLocationUpdates();
        }
    };
    try {
        fusedLocationClient.requestLocationUpdates(locationRequest, locationCallback, null);
    } catch (SecurityException e) {
        e.printStackTrace();
    }
}

private void stopLocationUpdates() {
    if (fusedLocationClient != null) {
        fusedLocationClient.removeLocationUpdates(locationCallback);
    }
    fusedLocationClient = null;
    locationRequest = null;
    locationCallback = null;
}

我只是将客户端归零，归零所有似乎都解决了问题。现在我所要做的就是打电话给startLocationUpdates()，它会照顾好自己，然后摧毁一切。

FusedLocationClient不会在请求后停止搜索gps

1 个答案: