I\'m working in an Android app that must use a RFID tag reader. I\'m using this reader as an extra device connected in my microUSB with an OTG wire. Android is detecting thi
In kotlin, I am using KeyEvent to determine whether input is from external RFID tag reader. When I don't want to allow inserting values to edit_text from RFID reader I am using this:
edit_text.setOnKeyListener { _, _, event -> !event.device.isVirtual }
also see docs and try to use it in relation to your problem