在应用启动期间获取当前位置

问题描述

美好的一天！我正在开发一个监控用户位置的安卓应用程序.我正在使用 LocationManager 获取用户位置，使用以下方法

Good Day! I am working on an android app which monitors user location. I am using LocationManager to get users location, using the following method

public void onLocationChanged(Location theLocation) {}

通过上述方法，每当有用户移动时，我都会收到位置坐标.

Through the above method, whenever there was a user movement, I am receiving location coordinates.

但是，现在我计划在用户登录应用后立即获取用户的位置.有什么方法可以通过 LocationManager 在我的应用启动后手动获取位置坐标?

But, now I am planning to get user's location immediately after their app login. Is there any way through LocationManager through which I can manually get the location coordinates after my app launch?

推荐答案

使用这个技巧:

LocationManager locManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);

boolean network_enabled = locManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);

Location location;

if(network_enabled){

   location = locManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);

if(location!=null){
   longitude = location.getLongitude();
   latitude = location.getLatitude();
    }                
}

在这种情况下，您甚至不需要使用 GPS，只需移动网络即可.

In this case you even no need to on GPS only your mobile network will do.

别忘了在 Manifest 中给予以下权限:

Don't forget to give the following permission in Manifest:

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

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