1<?xml version="1.0" encoding="utf-8"?> 2<FrameLayout 3 xmlns:android="http://schemas.android.com/apk/res/android" 4 xmlns:app="http://schemas.android.com/apk/res-auto" 5 xmlns:tools="http://schemas.android.com/tools" 6 android:id="@+id/content" 7 android:layout_width="match_parent" 8 android:layout_height="match_parent" 9 tools:context=".PlayerActivity"/>