Android: Basic touchscreen controller implementation

android/app/src/main/res/layout/activity_emulation.xml

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/frameLayout"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:background="#0099cc"