int32_t deviceId = AInputEvent_getDeviceId( event );
float x = AMotionEvent_getX( event, 0 );
float y = AMotionEvent_getY( event, 0 );
int32_t deviceId = AInputEvent_getDeviceId( event );
float x = AMotionEvent_getX( event, 0 );
float y = AMotionEvent_getY( event, 0 );