2

语境：

我一直在使用FusedLocationProviderClient来获取用户的位置。当手机处于高精度模式时，一切都按预期工作。但是，并非所有手机都具有高精度。那么，我怎样才能设法仅通过 GPS 获取用户位置

到目前为止我已经尝试过：

1 - 试过这个FusedLocationProviderClient：

 providerClient = LocationServices.getFusedLocationProviderClient(this);

locationCallback = new LocationCallback() {
            @Override
            public void onLocationResult(LocationResult locationResult) {
                super.onLocationResult(locationResult);
                Log.e(TAG,"CALLBACK RECEIVED");
                processNewLocation(locationResult.getLastLocation());
            }
        };

locationRequest = new LocationRequest();
locationRequest.setInterval(LocationConstant.UPDATE_INTERVAL_IN_MILLISECONDS);
locationRequest.setFastestInterval(LocationConstant.FASTEST_UPDATE_INTERVAL_IN_MILLISECONDS);
locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);

providerClient.requestLocationUpdates(locationRequest,
                    locationCallback, Looper.myLooper());

当位置仅在设备中时，永远不会调用位置回调，但如果它是高精度的，则可以完美地工作（也更改setPriority()为每个优先级并且没有运气）。

2-尝试使用位置管理器：

locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, new MyLocationListener());
locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, new MyLocationListener());
locationManager.requestLocationUpdates(LocationManager.PASSIVE_PROVIDER, 0, 0, new MyLocationListener());

 private class MyLocationListener implements LocationListener {

        public void onLocationChanged(Location location) {
            String message = String.format(
                    "New Location \n Longitude: %1$s \n Latitude: %2$s",
                    location.getLongitude(), location.getLatitude()
            );
            Toast.makeText(MainActivity.this, message, Toast.LENGTH_LONG).show();
        }

        public void onStatusChanged(String s, int i, Bundle b) {
            Toast.makeText(MainActivity.this, "Provider status changed",
                    Toast.LENGTH_LONG).show();
        }

        public void onProviderDisabled(String s) {
            Toast.makeText(MainActivity.this,
                    "Provider disabled by the user. GPS turned off",
                    Toast.LENGTH_LONG).show();
        }

        public void onProviderEnabled(String s) {
            Toast.makeText(MainActivity.this,
                    "Provider enabled by the user. GPS turned on",
                    Toast.LENGTH_LONG).show();
        }

    }

结果还是一样

4

0 回答 0