VideoView-全屏播放

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">

<VideoView
android:id="@+id/vv_video"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_centerInParent="true"/>

</RelativeLayout>

vv_video为VideoView

RelativeLayout.LayoutParams layoutParams=new RelativeLayout.LayoutParams(LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT);
layoutParams.addRule(RelativeLayout.ALIGN_PARENT_TOP);
layoutParams.addRule(RelativeLayout.ALIGN_PARENT_LEFT);
layoutParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);
layoutParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
vv_video.setLayoutParams(layoutParams);