Is there a build-in reaction of the textbox to the back-key

Bugs and Other Issues
1

On my e-reader, I do a call of TextBox.RequestFocus, TaifunTools1.ShowKeyboard and ExtraComponents1.AddEnterPressListener. On the e-reader a big textbox will appear, the keyboard is opened and the textbox gets smaller, I can enter text. When I press the BACK-key, with or without first entering text, the keyboard is cleared, textbox will get bigger and will keep the focus. If I press a second time on the BACK-key screen.Backpressed will be triggered and execute the code I programmed. If I exit from the textbox with the ENTER-key, ExtraComponents1.InputEnterPressed will execute and work as programmed. Is there a build-in reaction of the textbox to the back-key can it be trapped in some way?

2

????

Which distribution are you using, doesn't sound like MIT AppInventor AI2?
Please ask on the forum for the distribution you are using (e.g. Kodular/Thunkable X/etc.)

3

Correction this is another extension by vishwas