Question

我想要的是只获取一个新位置，并在第一次更新位置并将其添加到领域后删除位置更新，但是面临的问题是有时一次更新会获得100个以上的位置，并且在领域崩溃时执行100个事务应用

public void getCurrentLocation(final Context context) {

    LocationRequest mLocationRequest;
    final LocationCallback mLocationCallback;
    final FusedLocationProviderClient mFusedLocationClient;
    mFusedLocationClient = LocationServices.getFusedLocationProviderClient(context);
    mLocationRequest = new LocationRequest();
    mLocationRequest.setInterval(60000);
    mLocationRequest.setFastestInterval(60000);
    mLocationRequest.setNumUpdates(1);
    mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
    if (ActivityCompat.checkSelfPermission(context, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(context, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
        return;
    }


    mLocationCallback = new LocationCallback() {
        @Override
        public void onLocationResult(LocationResult locationResult)
        {
            if (locationResult == null)
            {
                return;
            }
            mFusedLocationClient.removeLocationUpdates(this);

            Location tempLocation = locationResult.getLastLocation();
            if (locationResult.getLocations().size() > 0)
            {
                tempLocation = locationResult.getLocations().get(0);
            }
            if(tempLocation != null )
            {
                RealmManager.writeLocationInRealm(context, tempLocation, true, 0);
            }
        }
    };

    mFusedLocationClient.requestLocationUpdates(mLocationRequest, mLocationCallback, null);
}

Answer 1

您可以通过以下代码实现

此代码在Kotlin中

private var fusedLocationClient: FusedLocationProviderClient?=null

在您的onCreate（）

中

fusedLocationClient = LocationServices.getFusedLocationProviderClient(this@YourActivity)
        fusedLocationClient!!.lastLocation
                .addOnSuccessListener { location: Location? ->
                        //Your lattitude location!!.latitude
                        //Your Longitude location.longitude
                    }

Answer 2

我遇到了同样的问题，这就是我在Kotlin中解决问题的方式

fusedLocationClient = LocationServices.getFusedLocationProviderClient(this)

        locationCallback = object : LocationCallback() {
            override fun onLocationResult(locationResult: LocationResult) {
                super.onLocationResult(locationResult)


                if (locationResult.lastLocation != null && locationResult.lastLocation.latitude > 0 && locationResult.lastLocation.longitude > 0) {

                    UserLocationObject.lastLocation = locationResult.lastLocation

                    fusedLocationClient.removeLocationUpdates(locationCallback)

                }
            }


}

如何使用融合的位置客户端仅获得一个位置？

2 个答案: