this is Backster. it addresses the missing back key touch that some users may be experiencing.
for devices running < sdk 33, the back key functions as normal. you don't need Backster.
starting with android 13 and running through android 16 (and sdk 33 through 36), google phased out what...
In my original project which did not use B4XPages I was able to trap back key by following code in Main Activity
Objective here is trap back key and close drawer if open else ask if user wants to exit without saving
Sub Activity_KeyPress (KeyCode As Int) As Boolean
Select KeyCode...
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