1<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 2 android:layout_width="match_parent" 3 android:layout_height="match_parent" 4 android:layout_gravity="center" 5 android:gravity="center" 6 android:orientation="vertical" 7 android:padding="10dp"> 8 9 <com.example.android.vdmdemo.demos.StylusDrawingView 10 android:layout_width="match_parent" 11 android:layout_height="match_parent" /> 12 13</LinearLayout>