CODEWITHSUNDEEP
androidonlongclicklistener
brunoais
brunoais

Reputation: 6836

How to consume only an ACTION_DOWN on onTouch and allow the default action for the rest

The objective here is to place markers on google maps.

I want to place the marker when the user does a longClick().

Problem. The long click listener does not have the data about where the user clicked. I can only know that he actually clicked. Also, if I use the touch event and I don't consume it (I require that for the map to use its default listener for the scrolling) I don't be listening to any other touch events, even if the touch resets. (that does not happen for the other events, afaik).

How to I know where the user did the longClick so that I can place a marker there in the map?

Upvotes: 0

Views: 1101

Answers (2)

Vishal Vyas
Vishal Vyas

Reputation: 2581

Check if this helps to detect long click. The onFinish() method of the CountdownTimer is the where you need to place your code to add markers.

It will work for detecting long click, not sure whether it will override scrolling behavior of MapView ;)

        public boolean onTouch(View v, MotionEvent event) {
            // TODO Auto-generated method stub
            switch (event.getAction()) {
            case MotionEvent.ACTION_DOWN:
                Log.d("action down", "action down started");
                countDownTimer = new CountDownTimer(2500, 1000) {

                    @Override
                    public void onTick(long millisUntilFinished) {
                        // TODO Auto-generated method stub

                    }

                    @Override
                    public void onFinish() {
                        // TODO Auto-generated method stub
                        Toast.makeText(getApplicationContext(),
                                "long clicked", Toast.LENGTH_SHORT).show();
                    }
                };
                countDownTimer.start();
                Log.d("action down", "action down ended");
                break;

            case MotionEvent.ACTION_UP:
                countDownTimer.cancel();
                countDownTimer = null;
                break;

            default:
                break;
            }
            return false;
        }

Upvotes: 0

David M
David M

Reputation: 2541

public boolean onTouchEvent(MotionEvent event) {
   switch(event.getAction()) {
   case MotionEvent.ACTION_DOWN:
       dosomething
       return true; // processed the event
   default:
       return false;
   }
}

this will allow you to process the ACTION_DOWN event, and have default processing for all others.

Upvotes: 1

Related Questions