Continuously increase integer value as the button is pressed

Question

I\'m new to Android so sorry if the question is easy to answer. I have two buttons, a decrease and an increase button, and in the middle of them a TextView which displays a

Answer 1

My way to increment value on long click is to use Timer used to check periodically if button is still pressed and than increase value, otherwise cancel timer. To update UI use Handler.

vh.bttAdd.setOnLongClickListener(new View.OnLongClickListener() {
        @Override
        public boolean onLongClick(View v) {

            final Timer timer = new Timer();
            timer.schedule(new TimerTask() {
                @Override
                public void run() {
                 if(vh.bttAdd.isPressed()) {
                     final int track = ((ChannelAudioTrack) channels.get(vh.getAdapterPosition())).goToNextTrack();
                  updateUI(vh,track);
                 }
                else
                timer.cancel();
            }
            },100,200);

            return true;
        }
    });

Handler:

private void updateUI(final TrackViewHolder vh, final int track)
 {
new Handler(Looper.getMainLooper()).post(new Runnable() {
                        @Override
                        public void run() {
                                  vh.tvTrackNumber.setText(Integer.toString(track));
                        }
                    }) ;
}