安卓用户权限错误(android.permission.ACCESS_WIFI_STATE)
安卓用户权限错误(android.permission.ACCESS_WIFI_STATE)
提问于 2014-10-09 13:57:04
我有个错误：
Caused by: java.lang.SecurityException: WifiService: Neither user 10132 nor current process has android.permission.ACCESS_WIFI_STATE.我试着得到wifi名称(ssid)。我使用以下代码：
WifiManager wifiManager = (WifiManager) getSystemService (Context.WIFI_SERVICE);
System.out.println(wifiManager.getConnectionInfo ().getSSID ());在我的清单文件中，我添加了这个权限：
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />我的全称：
10-09 16:08:23.705 31988-31988/com.example.android.navigationdrawerexample E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.android.navigationdrawerexample/com.example.android.navigationdrawerexample.MainActivity}: java.lang.SecurityException: WifiService: Neither user 10132 nor current process has android.permission.ACCESS_WIFI_STATE.
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2255)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2309)
at android.app.ActivityThread.access$700(ActivityThread.java:157)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1289)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:176)
at android.app.ActivityThread.main(ActivityThread.java:5319)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.SecurityException: WifiService: Neither user 10132 nor current process has android.permission.ACCESS_WIFI_STATE.
at android.os.Parcel.readException(Parcel.java:1425)
at android.os.Parcel.readException(Parcel.java:1379)
at android.net.wifi.IWifiManager$Stub$Proxy.getConnectionInfo(IWifiManager.java:991)
at android.net.wifi.WifiManager.getConnectionInfo(WifiManager.java:976)
at com.example.android.navigationdrawerexample.MainActivity$PlanetFragment.onCreateView(MainActivity.java:261)
at android.app.Fragment.performCreateView(Fragment.java:1699)
at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:903)
at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1075)
at android.app.BackStackRecord.run(BackStackRecord.java:682)
at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1455)
at android.app.Activity.performStart(Activity.java:5335)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2227)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2309)
at android.app.ActivityThread.access$700(ActivityThread.java:157)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1289)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:176)
at android.app.ActivityThread.main(ActivityThread.java:5319)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
at dalvik.system.NativeStart.main(Native Method)回答 4
Stack Overflow用户
回答已采纳
发布于 2014-10-09 14:18:43
考虑到您正在使用正确的权限，并且这些行在语法上是正确的，很可能您的将权限错误地放置在您的清单中，如果您在其他地方拥有它们，而不是清单节点的根，那么它们很可能根本无法工作。他们需要在 <manifest> 和 </manifest>之前，而不是在<application>或<activity>内部
<manifest xlmns:android...>
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
...YOUR APPLICATION & ACTIVITY HERE...
</manifest>注意，为了提高可读性，清单标记已经简化。
http://developer.android.com/guide/topics/manifest/uses-permission-element.html
Stack Overflow用户
发布于 2016-08-21 08:46:08
将此添加到您的AndroidManifest.xml中
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />对我来说没问题！
Stack Overflow用户
发布于 2017-02-08 07:15:31
if(provider!=null && !provider.equals("")){
// Get the location from the given provider
Location location = locationManager.getLastKnownLocation(provider); // error (call require permission which may be rejected by user)
locationManager.requestLocationUpdates(provider, 20000, 1, this);
if(location!=null)
onLocationChanged(location);
else
Toast.makeText(getBaseContext(), "Location can't be retrieved", Toast.LENGTH_SHORT).show();
}else{
Toast.makeText(getBaseContext(), "No Provider Found", Toast.LENGTH_SHORT).show();
}
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/26280347
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