This is what I simply have in my code:

        RxKeyboard.instance.visibleHeight.drive(onNext: { [weak self] value in
            // do sth with value
        }).disposed(by: disposeBag)

but this is called twice with values: 291, 336. And because of this my view jumps. It happens just when I focus on UITextField. Keyboard is already on the screen, but it is called twice. Why? Is there a way to remove it? I thought it will be possible with:

        .debounce(.milliseconds(100), scheduler: MainScheduler.instance)

but it will not work with RxKeyboard.