标签: android-location

我添加了一个测试提供者，使用LocationManager.GPS_PROVIDER提供者名称，如此处所述

https://mobiarch.wordpress.com/2012/07/17/testing-with-mock-location-data-in-android/

在 Google 地图应用程序中，我看到位置在模拟位置和真实位置之间跳转，然后又返回模拟位置。

为什么会跳转到真实位置？我该如何阻止它？

也许我误解了如何使用模拟位置。我还没有找到任何可用的官方文档。

我想检测用户是否在运行时关闭了该位置。我可以检查他是否打开了它，或者在应用程序启动之前用户是否关闭了位置，但我无法检查他是否在之后关闭了它。

代码示例： MapEntity扩展LocationListener

class MapViewer(a: MainActivity, parentView: ViewGroup) : MapEntity(a, parentView) {

    override fun onProviderEnabled(provider: String?) {
        activity.hideGpsSnackbar()
    }

    override fun onProviderDisabled(provider: String?) {
        activity.showGpsSnackbar()
    }

}

对于实时 GPS 位置检查，我正在使用 GnssStatus.Callback()

更新：

我已经BroadcastReceiver根据下面的答案创建了。

abstract class GPSReceiver : BroadcastReceiver() {

    override fun onReceive(context: Context, intent: Intent) {
        try {
           val locationManager = context.getSystemService(LOCATION_SERVICE) as LocationManager

             if(locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
                    onGpsChanged(true)
                } else {
                    onGpsChanged(false)
                }
            } catch (ex: Exception) {
                App.log("IsGPSEnabled: $ex")
            }

        }

        abstract fun onGpsChanged(isEnabled: Boolean)
    } …

我正在我的应用程序中使用LocationServices。在使用位置服务之前，我尝试验证具有所需设置的位置是否已打开，但我面临的问题SettingsClient.checkSettings始终是failing。请参阅我LocationRequest和LocationSettingRequest建造者：

位置请求

 mLocationRequest = LocationRequest()
        mLocationRequest.interval = interval
        mLocationRequest.fastestInterval = interval

        Log.v(TAG, "distance => $distance")
        if(distance > 0) {
            mLocationRequest.smallestDisplacement = distance
        }

        mLocationRequest.priority = LocationRequest.PRIORITY_HIGH_ACCURACY

        buildLocationSettingsRequest()

位置设置RequestBuilder

private fun buildLocationSettingsRequest() {
        val builder = LocationSettingsRequest.Builder()
        builder.addLocationRequest(mLocationRequest)
        mLocationSettingsRequest = builder.build()

        mSettingsClientInit = true
    }

我checkSettings要求

mSettingsClient.checkLocationSettings(mLocationSettingsRequest)
                .addOnSuccessListener(this, object : OnSuccessListener<LocationSettingsResponse> {

                    override fun onSuccess(locationSettingsResponse: LocationSettingsResponse) {
                        Log.i(TAG, "LocationManager: All location settings are satisfied.");
                        mLocationCallback?.let {
                            fusedLocationClient?.requestLocationUpdates(mLocationRequest, mLocationCallback, Looper.myLooper()); …

我创建了一个服务，用于查找用户的坐标并将其存储在 SQLite 数据库中。

public class GPS_Service extends Service {

DatabaseHelper myDb;

private LocationListener locationListener;
private LocationManager locationManager;

private String latitude, longitude;

@Override
public void onCreate() {
    super.onCreate();

    myDb = new DatabaseHelper(this);

}

@SuppressLint("MissingPermission")
@Override
public int onStartCommand(Intent intent, int flags, int startId) {

    Intent notificationIntent = new Intent(this, MainActivity.class);
    PendingIntent pendingIntent = PendingIntent.getActivity(this,0, notificationIntent, 0);

    Notification notification = new NotificationCompat.Builder(this, CHANNEL_ID)
            .setContentTitle("Service")
            .setContentText("Coordinates Location Running")
            .setContentIntent(pendingIntent)
            .build();

    startForeground(1, notification);

    locationListener = new LocationListener() {

        @Override
        public void onLocationChanged(Location location) { …

我正在尝试检测模拟位置。我已经安装了假位置应用程序并在“设置”（在“开发人员选项”下）中启用了“模拟位置”。但是当我尝试使用Geolocator检测模拟位置时，它根本不起作用。

Future<Position> _determinePosition() async {
bool serviceEnabled;
LocationPermission permission;

serviceEnabled = await Geolocator.isLocationServiceEnabled();
if (!serviceEnabled) {
  return Future.error('Location services are disabled.');
}

permission = await Geolocator.checkPermission();
if (permission == LocationPermission.deniedForever) {
  return Future.error(
      'Location permissions are permanently denied, we cannot request permissions.');
}

if (permission == LocationPermission.denied) {
  permission = await Geolocator.requestPermission();
  if (permission != LocationPermission.whileInUse &&
      permission != LocationPermission.always) {
    return Future.error(
        'Location permissions are denied (actual value: $permission).');
  }
}
return await Geolocator.getCurrentPosition(
    desiredAccuracy: LocationAccuracy.high);
} …

如何检查是否LocationManager.NETWORK_PROVIDER可用？

我已启用AndroidManifest.xml但我需要在代码中检查它,如果无法使用GPS_PROVIDER.有人能帮我吗 ？