samples/wearable/SynchronizedNotifications/Wearable/src/main/res/layout/activity_wearable.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".WearableActivity">

</RelativeLayout>