Simulate Long press by Touch events

Question

How can we simulate long press by touch event? or how can we calculate the time that screen is touched, all in ACTION_DOWN state?

score 14 · Accepted Answer · answered Jul 27 '13 at 10:19

I have implemented a Touch screen long click finally , thx all:

textView.setOnTouchListener(new View.OnTouchListener() {

    private static final int MIN_CLICK_DURATION = 1000;
    private long startClickTime;

    @Override
    public boolean onTouch(View v, MotionEvent event) {

        switch (event.getAction()) {
        case MotionEvent.ACTION_UP:
            longClickActive = false;
            break;
        case MotionEvent.ACTION_DOWN:
            if (longClickActive == false) {
                longClickActive = true;
                startClickTime = Calendar.getInstance().getTimeInMillis();
            }
            break;
        case MotionEvent.ACTION_MOVE:
            if (longClickActive == true) {
                long clickDuration = Calendar.getInstance().getTimeInMillis() - startClickTime;
                if (clickDuration >= MIN_CLICK_DURATION) {
                    Toast.makeText(MainActivity.this, "LONG PRESSED!",Toast.LENGTH_SHORT).show();
                    longClickActive = false;
                }
            }
            break;
        }
        return true;
    }
});

in which private boolean longClickActive = false; is a class variable.

the problem is long tap is waiting for ACTION_MOVE which sometimes is not called but the long tap must be captured — sadegh saati, Jun 05 '15 at 20:07

score 3 · Answer 2 · answered Nov 29 '17 at 11:52

Try this. You don't need to find hack for this.

final GestureDetector gestureDetector = new GestureDetector(new GestureDetector.SimpleOnGestureListener() {
 public void onLongPress(MotionEvent e) {
  Log.e("", "Longpress detected");
 }
});

public boolean onTouchEvent(MotionEvent event) {
 if (gestureDetector.onTouchEvent(event)) {
  return true;
 }
 switch (event.getAction()) {
  case MotionEvent.ACTION_UP:
   break;
  case MotionEvent.ACTION_DOWN:
   break;
  case MotionEvent.ACTION_MOVE:
   break;
 }
 return true;
}
};

score 2 · Answer 3 · edited May 23 '17 at 12:09

2

For calculating touch count you can get getPointerCount() of your event like here

and for Long click maybe this helps

Edit: and hope this link help you determining getting touch duration

edited May 23 '17 at 12:09

Community

1
1

answered Jul 27 '13 at 09:23

Arash GM

10,316
6
58
76

I need time not count dude. – Soheil Setayeshi Jul 27 '13 at 09:27
1

maybe i couldn't understand you well , so hope edited answer and attached link help you more , good luck – Arash GM Jul 27 '13 at 09:33
It was not completely my answer but inspired me by using Boolean flags. thx :D – Soheil Setayeshi Jul 27 '13 at 09:36

score 1 · Answer 4 · answered Jul 27 '13 at 09:31

1

You have to count time between ACTION_DOWN and ACTION_UP events. It's impossible to calculate this time only in ACTOIN_DOWN state, cause it's the START event of sequence of events representing TAP of LONG TAP event

answered Jul 27 '13 at 09:31

Sergey Brazhnik

661
4
13

Thx , I did it by using ACTION_DOWN and ACTION_MOVE. – Soheil Setayeshi Jul 27 '13 at 10:21

Simulate Long press by Touch events

4 Answers4

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