Yes I had ViewsEx 1.30+ and XUI Library installed.
I didn't realise the example is in the AppCompat.b4a file. Maybe a more obvious file name may help new users?
What I didn't realise was I needed the AppCompatLib4 library also. This isn't super obvious.
Thanks for the assistance and if I have any new questions I'll start a new thread.
Please feel free to close this thread.