在 Android Studio 中永远不会调用 onLocationUpdate

Posted 2023-04-14

【中文标题】在 Android Studio 中永远不会调用 onLocationUpdate

【英文标题】：onLocationUpdate is never called in Android Studio

【发布时间】：2020-02-13 11:10:40

【问题描述】：

我正在尝试获取用户的位置，但似乎从未触发过 onLocationUpdate，我尝试在多个设备上运行此应用，结果相同。

我在此处发布之前尝试了 Google，但找不到任何解决方案。并且，在 manifest 文件中添加了 android Internet、GPS COARSE 和 GPS FINE 权限。

这是我的整个活动代码

public class AnotherActivity extends AppCompatActivity 
    LocationManager locationManager;
    LocationListener locationListener;



    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) 
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);

        // Checking if we got permission
        if(grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED)
            if(ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED)
                locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,0,0,locationListener);
            
        
    

    @Override
    protected void onCreate(Bundle savedInstanceState) 
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_nearby_restaurants);

        locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);

        locationListener = new LocationListener() 
            @Override
            public void onLocationChanged(Location location) 
                Toast.makeText(NearbyRestaurants.this, location.getLatitude()+String.valueOf(location.getLongitude()), Toast.LENGTH_SHORT).show();
                   Log.i("Location Update!", location.toString())
            

            @Override
            public void onStatusChanged(String s, int i, Bundle bundle) 

            

            @Override
            public void onProviderEnabled(String s) 

            

            @Override
            public void onProviderDisabled(String s) 

            
        ;
        if(ContextCompat.checkSelfPermission(this,Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED)
            ActivityCompat.requestPermissions(this,new String[] Manifest.permission.ACCESS_FINE_LOCATION,1);
        else
            Log.i("Checking Location","Checking Location Wait");

            locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener);

        
    

【参考方案1】：

能否在请求位置时也尝试添加 NETWORK_PROVIDER

requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locationListener);