<?xml version="1.0" encoding="utf-8"?> <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <com.google.android.exoplayer2.ui.PlayerView android:id="@+id/video_view" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_gravity="center" android:gravity="center" app:player_layout_id="@layout/media_preview_exoplayer_layout"/> </FrameLayout>