using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Xamarin.Forms;

namespace Gesture
{
    public partial class MainPage : ContentPage
    {
        // liczba tapnieć
        int tapCount = 0;
        
        public MainPage()
        {
            InitializeComponent();
        }
        // obsługa zdarzenia tap
        void OnTapGestureRecognizerTapped(object sender, EventArgs args)
        {
            tapCount++;
            var imageSender = (Image)sender;
            
            // po dwukrotnym tapnieciu zmiana obrazka
            if (tapCount % 2 == 0)
            {
                imageSender.Source = "green.png";
            }
            else
            {
                imageSender.Source = "red.png";
            }

        }
    }
}