How to handle triple (or configured numbers) of tap gesture on Xamarin.Android?

Question

I'm using GestureDetector.SimpleOnGestureListener class for handling some simple gestures on my app. And it's works perfectly.

But now I'm faced with a problem of handling multiple tap gesture. I Just want to configure NumbersOfTaps and handle appropriate gesture.

But can't find any details or notes How to implement it on Andoid or Xamarin.Android documentation.

Answer 1

            DateTime _firstTap;
            int _tapCount = 0;
            const int TAP_COUNT_TRESHOLD = 5; //number of taps
            const int TIME_TRESHOLD 200; //ms time

            protected override void OnResume()
            {
                myButton.Clicked += ButtonTapped;
            }

            protected override void OnPause()
            {
                myButton.Clicked -= ButtonTapped;
            }

            void ButtonTapped(object sender, EventArgs e){

                var time = Math.Round((DateTime.Now - _firstTap).TotalMilliseconds, MidpointRounding.AwayFromZero);

                if (time > TIME_TRESHOLD)
                {
                    _tapCount = 1;
                    _firstTap = DateTime.Now;
                }
                else
                    _tapCount++;

                if (_tapCount == TAP_COUNT_TRESHOLD)
                {
                   //do your logic here
                }
            }

Time limit and number of clicks are configurable.

Answer 2

Use that code, I do not believe if it is good approach but it works. Check it out.

long milliSeconds = 0;
        var tapCount = 0;
        var millisecondsPeriod = 200;
        button.Click += (object sender, EventArgs e) => {
            if (milliSeconds == 0) {
                milliSeconds = DateTime.Now.Ticks / TimeSpan.TicksPerMillisecond;
                tapCount++;
            } else {
                var currMill = DateTime.Now.Ticks / TimeSpan.TicksPerMillisecond - milliSeconds;
                if (currMill < millisecondsPeriod) {
                    milliSeconds = DateTime.Now.Ticks / TimeSpan.TicksPerMillisecond;
                    tapCount++;
                    if (tapCount == 3) {
                        Toast.MakeText (this, "triple", ToastLength.Long).Show ();
                    }
                } else {
                    tapCount = 0;
                    milliSeconds = 0;
                }
            }
        };

You can change the millisecondsPeriod how you wish.