How to make Video to Full screen in Xamarin android app

Question

I use <VideoView> to make an online streaming app. How can I have a full-screen video when I rotate the phone?

    <VideoView
        android:layout_width="match_parent"
        android:layout_height="240sp"
        android:layout_gravity="center_horizontal"
        android:id="@+id/StreamingVideo"
        android:layout_marginBottom="0.0dp" 
        />

```