Android Question search in codesnippets

Search for the term you want i.e. Radiobutton, then use the filters at the top of the results to select B4a from the' All Products' dropdown, and Code Snippets from the 'Any Prefix' dropdown. That should get you close.

Example: https://www.b4x.com/android/forum/pages/results/?query=wildcard&prefix=19,23,20,30&product=b4a