samples/wearable/WatchViewStub/Wearable/src/main/res/layout/main_activity.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">

    <android.support.wearable.view.WatchViewStub
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/stub"
        app:rectLayout="@layout/rect_layout"
        app:roundLayout="@layout/round_layout"/>

    <android.support.wearable.view.DismissOverlayView
        android:id="@+id/dismiss_overlay"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

</FrameLayout>