我心中已经已经检查设置中的位置与安全性，并启用使用无线网络。但isProviderEnabled（LocationManager.NETWORK_PROVIDER）总是返回假。

谁能帮助我？预先感谢您！

下面是我的code：

  LocationManager locManager =（LocationManager）getSystemService（Context.LOCATION_SERVICE）;
布尔isEnableGPS = locManager.isProviderEnabled（LocationManager.GPS_PROVIDER）;
布尔isEnableNTW = locManager.isProviderEnabled（LocationManager.NETWORK_PROVIDER）;
Log.d（TAG，isEnableGPS +，+ isEnableNTW）;
 

在AndroidMainfest.xml许可

 ＆LT;使用-权限的Andr​​oid：名称=android.permission.INTERNET对/＆GT;
＆LT;使用-权限的Andr​​oid：名称=android.permission.ACCESS_FINE_LOCATION/＆GT;
＆LT;使用-权限的Andr​​oid：名称=android.permission.ACCESS_COARSE_LOCATION/＆GT;
 

解决方案

确认，基于网络的位置在手机的设置中启用。您可以检测到这种情况并提示用户启用它，如果你真的需要它。

我相信这是code线，推出这一活动。

  activity.startActivity（新意图（android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS）;
 

ACTION_LOCATION_SOURCE_SETTINGS

这篇文章解释了它的http://emobiledude.com/fix-waiting-for-location-in-google-maps-after-android-4-2-update/

I am using NETWORK_PROVIDER to get latitude and longitude of the place.

I'v already check the setting in the "location & security" and enable "use wireless networks". But "isProviderEnabled(LocationManager.NETWORK_PROVIDER)" always return false.

Can anyone help me? Thank you in advance!

Here is my code :

LocationManager locManager=(LocationManager) getSystemService(Context.LOCATION_SERVICE);
boolean isEnableGPS=locManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
boolean isEnableNTW=locManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
Log.d(TAG, isEnableGPS+", "+isEnableNTW);

permission in the AndroidMainfest.xml

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

Make sure that network based location is enabled in the phone's settings. You can detect this situation and prompt the user to enable it if you really need it.

I believe this is the line of code to launch this activity.

activity.startActivity(new Intent(android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS);

ACTION_LOCATION_SOURCE_SETTINGS

This article explains it http://emobiledude.com/fix-waiting-for-location-in-google-maps-after-android-4-2-update/