Android Question Disable ESC key on physical keyboard

[mauro vicamini]

Hello everyone,
I need to disable the ESC key in a totem Android app that use a physical keyboard.
How can achive it? (pls don't tell me to physically remove the ESC button...).

Thanks for your attention.

Mauro

 

[DonManfred]

Android does not have a "ESC Key". So there is no way to disable it.

 

[mauro vicamini]

Android does not have a "ESC Key". So there is no way to disable it.

Buy if you press the Esc button on a physical keyboard It acts like a home button.

 

[aeric]

I tried plug in a physical keyboard to the type-C connector but Escape key is not triggering the keypress event.

 

[Daestrum]

Could you not override the onKeyDown / OnKeyUp and simply consume the key event if the keycode is KEYCODE_ESCAPE.

 

[aeric]

Could you not override the onKeyDown / OnKeyUp and simply consume the key event if the keycode is KEYCODE_ESCAPE.

There is no KEYCODE_ESCAPE

B4A - Constants (Core)

 

[mauro vicamini]

So, no solutions...?

 

[aeric]

You need to catch the KeyCode value in debug. If it returns value such as 27, then you may able to handle the event such as returning False in Activity_KeyPress event.

Sub Activity_KeyPress (KeyCode As Int) As Boolean
    If KeyCode = KeyCodes.KEYCODE_BACK Then
        Return B4XPages.Delegate.Activity_KeyPress(KeyCode)
    End If
    B4XPages.GetManager.RaiseEvent(B4XPages.GetManager.GetTopPage, "B4XPage_KeyPress", Array(KeyCode))
    Return False
End Sub

https://www.b4x.com/android/forum/threads/b4xpages-intercepting-keypress.139118/#post-880705

 

[Daestrum]

There is no KEYCODE_ESCAPE

Maybe not in B4A but in android there is KeyEvent.KEYCODE_ESCAPE

 

[drgottjr]

on my keyboard, hitting the ESC key = android's home button, which - i understand - cannot be trapped. at least not easily, from what i've read. i've tried with inline hooks (_oncreate, _onkeydown, onkeyup), and dispatchkeyevent. key touches on the physical keyboard using these methods register fine except when i hit esc: right to user close(false) with no indication of the keycode or scancode was when i touch esc. in other words, even though there is a KeyEvent.KEYCODE_ESCAPE, code in onkeyup or onkeydown never gets a chance to evaluate which key was touched. app is closed.

i'm led to understand that you have to setcontentview() and pass the view (presumably an edittext), but setconteview is already run when the app launches. whether or not successfully using setcontentview() to the edittext (instead of the layout) has any effect on trapping the esc key i don't know.