android emulator browser not connecting to internet

<application android:icon="@drawable/icon" android:label="@string/app_name">
    <activity android:name=".reader"
              android:label="@string/app_name">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
             <category android:name="android.intent.category.BROWSABLE" />
        </intent-filter>
        <intent-filter>
            <action android:name="android.intent.action.VIEW" />
            <category android:name="android.intent.category.DEFAULT" />


        </intent-filter>
    </activity>

</application>
 <uses-permission android:name="android.permission.INTERNET" />
 <uses-permission android:name="android.permission.WRITE_EXTERN开发者_如何转开发AL_STORAGE" />
  <supports-screens
    android:smallScreens="true"
    android:normalScreens="true"
    android:largeScreens="true"
    android:anyDensity="true" />
    </manifest>