Question

我只想在距离当前位置3米处移动时获取当前位置更新

FusedLocationClient.requestLocationUpdates

为此我做了这样的LocationRequest：

 private LocationRequest requestLocation(){

 LocationRequest mLocationRequest = new LocationRequest();                                                                                                              
 mLocationRequest.setSmallestDisplacement(3.81f);                                                                                                                                                 
 mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);            
 return mLocationRequest;                                                         
 }

并实现如下：连接到播放服务后

@Override
public void onConnected(Bundle bundle) {                                                                  

mFusedLocationClient.requestLocationUpdates(requestLocation(), 
new LocationCallback() {               
    @Override                                                                                         
    public void onLocationResult(LocationResult locationResult) {                                     
        for (final Location location : locationResult.getLocations()) {                               

            tvLat.setText(Double.toString(location.getLatitude()));                                   
            tvLng.setText(Double.toString(location.getLongitude()));                                  

           //changing position of marker and camera                                                                                    
            changeCameraPosition(CameraUpdateFactory.newLatLngZoom(                                   
             new LatLng(location.getLatitude(), location.getLongitude()),                      
                    16), new GoogleMap.CancelableCallback() {                                         

      @Override                                                                             
      public void onFinish() {}                                                          


      @Override                                                                             
      public void onCancel() { }                                                             

            });                                                                                       

        }                                                                                             
    }                                                                                                 
    }, Looper.myLooper());

但是我离这个距离我现在的位置至少650米远的地方，即使我没有移动，这里是我在清单中的权限：

<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="permission.READ_GSERVICES" />

Answer 1

也许您可以查看这个：Android map Update location to server when there is difference of x meters between current location and last location并查看移动时距离的差异，这样您就会知道过度移动的来源发生在哪里。

为什么FusedLocationClient.requestLocationUpdates提供的当前位置和位置之间存在差异

1 个答案: