garage_opener/wear/res/activity_wear.xml

<?xml version="1.0" encoding="utf-8"?>

<android.support.wearable.view.WatchViewStub
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        xmlns:tools="http://schemas.android.com/tools"
        android:id="@+id/watch_view_stub"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context=".WearActivity"
        tools:deviceIds="wear"
        app:rectLayout="@layout/rect_activity_wear"
        app:roundLayout="@layout/round_activity_wear">
</android.support.wearable.view.WatchViewStub>