How to distinguish between move and click in onTouchEvent()?

Question

In my application, I need to handle both move and click events.

A click is a sequence of one ACTION_DOWN action, several ACTION_MOVE actions and one ACTION_UP action

Answer 1

To get most optimized recognition of click event We have to consider 2 things:

1. Time difference between ACTION_DOWN and ACTION_UP.
2. Difference between x's,y's when user touch and when release the finger.

Actually i combine the logic given by Stimsoni and Neethirajan

So here is my solution:

        view.setOnTouchListener(new OnTouchListener() {

        private final int MAX_CLICK_DURATION = 400;
        private final int MAX_CLICK_DISTANCE = 5;
        private long startClickTime;
        private float x1;
        private float y1;
        private float x2;
        private float y2;
        private float dx;
        private float dy;

        @Override
        public boolean onTouch(View view, MotionEvent event) {
            // TODO Auto-generated method stub

                    switch (event.getAction()) 
                    {
                        case MotionEvent.ACTION_DOWN: 
                        {
                            startClickTime = Calendar.getInstance().getTimeInMillis();
                            x1 = event.getX();
                            y1 = event.getY();
                            break;
                        }
                        case MotionEvent.ACTION_UP: 
                        {
                            long clickDuration = Calendar.getInstance().getTimeInMillis() - startClickTime;
                            x2 = event.getX();
                            y2 = event.getY();
                            dx = x2-x1;
                            dy = y2-y1;

                            if(clickDuration < MAX_CLICK_DURATION && dx < MAX_CLICK_DISTANCE && dy < MAX_CLICK_DISTANCE) 
                                Log.v("","On Item Clicked:: ");

                        }
                    }

            return  false;
        }
    });