1<?xml version="1.0" encoding="utf-8"?> 2<RelativeLayout 3 xmlns:android="http://schemas.android.com/apk/res/android" 4 xmlns:tools="http://schemas.android.com/tools" 5 android:layout_width="match_parent" 6 android:layout_height="match_parent" 7 tools:context=".MainActivity"> 8 9 <com.example.android.rs.nbody_gl.BasicGLSurfaceView 10 android:layout_width="match_parent" 11 android:layout_height="match_parent" 12 android:id="@+id/surfaceView" 13 android:layout_alignParentTop="true" 14 android:layout_alignParentRight="true" 15 android:layout_alignParentEnd="true" 16 /> 17</RelativeLayout> 18