Show soft keyboard even though a hardware keyboard is connected

Question

Is there any way to show software keyboard with USB keyboard connected (in my case RFID reader)?
I tried to force show it using InputManager (with these or similar para

Answer 1

If your app has the WRITE_SECURE_SETTINGS permission (available to system apps or Android Things apps) it can set the show_ime_with_hard_keyboard system setting which will enable soft keyboard even if a hard keyboard is plugged:

Settings.Secure.putInt(getContentResolver(), "show_ime_with_hard_keyboard", 1);