Is it possible to intercept an input event without an input field and an open soft keyboard?

Question

Android

Is it possible to somehow catch the text input message if there is no EditText (text input field) on the screen in the application and the soft keyboard is not open?
Android 4.1.2
PS. I will explain why this is needed: there is a Motorola TC55 device (a data collection terminal, a smartphone on Android 4.1.2 with a barcode reader (laser)), which has a scan button on its left side, after pressing it, the scanner laser turns on, after reading the barcode characters from the read barcode are programmatically pressed. And at its core, it's just a keyboard emulator.

Answer 1

Both the Activity and View class implement the KeyEvent.Callback interface, so you should generally override the callback methods in your extension of these classes as appropriate.
https://developer.android.com/training/keyboard-in...