Disable touch screen in Android in accessibility service

Question

I am developing an Android application for the deaf and blind using the accessibility service

Need to disable the touch screen, because android app is controlled through a third-party device

I tried to add a view to WindowManager and disable everything there ( FLAG_NOT_FOCUSABLE , FLAG_NOT_TOUCHABLE ), but as far as I understand, it disabled the touch screen only in this view, but not at all

I can request any type of permission except the root

EDIT:

Due to Android security, disabling the touchscreen is not possible without root

Answer 1

Congratulations and good will for you are working for a good cause.

Not sure exactly how to do this but One way is to create a full screen activity - hide navigation bar and soft navigation buttons also -- please refer this documentation

And 2. override onBackPressed and never allow it to call super.onBackPressed() or relaunch your app in OnPause() method.

Hope this helps somewhat.