input/multitouch/BasicMultitouch/BasicMultitouch/src/main/res/layout/layout_mainactivity.xml

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

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:padding="75dp"
        android:text="@string/explanation" />

    <com.example.android.input.multitouch.basicMultitouch.TouchDisplayView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</FrameLayout>