Question

In an application I’m working on, I have the requirement that a user must click & hold a component for a period time before a certain action occurs.

I’m currently using an OnLongClickListener to listen for the longclick, but I find that the length of a click to trigger the OnLongClick event is too short.

For example, let’s say the LongClick event triggers after a 400ms click, but I want the user to have to click & hold for 1200ms before the event triggers.

Is there any way I can configure the LongClick event to require a longer click?
Or is there perhaps another construct that would allow me to listen for longer clicks?

Answer 1

It is not possible to change the timer on the onLongClick event, it is managed by android itself.

What is possible is to use .setOnTouchListener().

Then register when the MotionEvent is a ACTION_DOWN.
Note the current time in a variable.
Then when a MotionEvent with ACTION_UP is registered and the current_time – actionDown time > 1200 ms then do something.

so pretty much:

Button button = new Button();
long then = 0;
    button.setOnTouchListener(new OnTouchListener() {

        @Override
        public boolean onTouch(View v, MotionEvent event) {
            if(event.getAction() == MotionEvent.ACTION_DOWN){
                then = (Long) System.currentTimeMillis();
            }
            else if(event.getAction() == MotionEvent.ACTION_UP){
                if(((Long) System.currentTimeMillis() - then) > 1200){
                    return true;
                }
            }
            return false;
        }
    })