Android 中橫豎屏的設定

將android:screenOrientation="portrait"，轉換橫屏豎屏無效，始終顯示豎屏。

  <application         android:allowBackup="true"        android:icon="@drawable/ic_launcher"        android:label="@string/app_name"        android:theme="@style/AppTheme" >        <activity android:screenOrientation="portrait"            android:name="com.example.expandablelistdemo.ExpandableList3"            android:label="@string/app_name" >            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>    </application>