android - How to handle MotionEvents (Gamepad Joystick Movement, etc) from AccessibilityService

Question

I have an AccessibilityService that takes in input from game controllers (ps5 controller, xbox controller, etc.).

I use the onKeyEvent() method to handle button presses and releases, so I can handle those easily. The problem I am facing is how to handle the Joystick movements and top trigger presses, as I am unaware how to handle them through an AccessibilityService.

Normally, I would simply use onGenericMotionEvent() to handle these MotionEvents, but unfortunately AccessibilityService does not provide me with such a method. I have looked at the docs and official codelabs for almost 3 weeks with no luck, if someone could tell me how to handle MotionEvents through an AccessibilityService I would be very relieved.

The MotionEvents I want to handle are these:

AXIS_X, AXIS_Y, AXIS_Y, AXIS_RZ, AXIS_RY, AXIS_RX, AXIS_HAT_X, AXIS_HAT_Y, AXIS_LTRIGGER, AXIS_RTRIGGER, AXIS_BRAKE,AXIS_GAS.

There may be others depending on the controller, but these are the main ones I need to handle input from my controller.

Regards, 0xB01b

question from:https://stackoverflow.com/questions/66049278/how-to-handle-motionevents-gamepad-joystick-movement-etc-from-accessibilityse

Answer 1

The API doesn't support these because AccessibilityServices can only filter KeyEvents, and the buttons as you say do not produce KeyEvents.

Can you explain what you're building? Understanding the impact of adding this api to the lives of people with disabilities would help us prioritize this work along with other stuff we're planning.