正在获取java.lang.SecurityException：ConnectivityService：用户10062或当前进程都没有android.permission.ACCESS_NETWORK_STATE。”

Question

Want to check Internet connection.Following is the code :

  public boolean isNetworkConnected() {
    ConnectivityManager cm = (ConnectivityManager) getSystemService(this.CONNECTIVITY_SERVICE);
    NetworkInfo networkinfo = cm.getActiveNetworkInfo();
    if(networkinfo != null){
        return true;
    }
    else {
        return false;
    }
}

Following is the xml file :

 <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.vinitmandlesha.logintestform"> <uses-permission android:name="android.permission.INTERNET"> <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /> <uses-permission android:name="ANDROID.PERMISSION.ACCESS_NETWORK_STATE" /> </uses-permission> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:supportsRtl="true" android:theme="@style/AppTheme"> <activity android:name=".LoginActivity" android:label="@string/app_name" android:theme="@style/AppTheme.NoActionBar"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name=".sample" android:label="sample" android:theme="@style/AppTheme.NoActionBar" /> </application> </manifest> 

Getting this exception on calling isNetworkConnected method.I have set all required permission in manifest file. Also the 3G connection is active on emulator. Where am I am going wrong ?

Answer 1

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="ANDROID.PERMISSION.ACCESS_NETWORK_STATE" />

Permission tags ending is not proper that why permissions are not being applied in the app.

Answer 2

Android permissions are case sensitive, so pl change

<uses-permission android:name="ANDROID.PERMISSION.ACCESS_NETWORK_STATE" />

to

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

Answer 3

Try this.

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

or .

private boolean isNetworkConnected() {
   ConnectivityManager cm = (ConnectivityManager)  
  getSystemService(Context.CONNECTIVITY_SERVICE);
   return cm.getActiveNetworkInfo() != null;

}

Answer 4

I think it should be

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

instead of

<uses-permission android:name="ANDROID.PERMISSION.ACCESS_NETWORK_STATE" />

. Case sensitive.

Answer 5

还要检查您是否在棉花糖上运行，必须为此提供动态运行时权限