Xamarin Forms: SwipeGestureRecognizer is not working on android platform

Question

The SwipeGestureRecognizer is not working on the android platform and I found a lot of threads related to that.

I found an alternative solution here and this is the corresponding thread. All the swipes are implemented using a SwipeListener.cs and ISwipeCallBack.cs. But it is only work with a label, when I tried it with a listview the swipe events are not firing.

Here is my sample project to reproduce the issue.

This solution is an old on, so something on the implementation is deprecated, I can't understand what it is. Is there any way to make the swipe work for listviews?

SwipeListener.cs

using System;
using Xamarin.Forms;

namespace SwipeLib
{
	public class SwipeListener : PanGestureRecognizer
	{
		private ISwipeCallBack mISwipeCallback;
		private double translatedX = 0, translatedY = 0;

		public SwipeListener(View view, ISwipeCallBack iSwipeCallBack)
		{
			mISwipeCallback = iSwipeCallBack;
			var panGesture = new PanGestureRecognizer();
			panGesture.PanUpdated += OnPanUpdated;
			view.GestureRecognizers.Add(panGesture);
		}

		void OnPanUpdated(object sender, PanUpdatedEventArgs e)
		{

			View Content = (View)sender;

			switch (e.StatusType) {

				case GestureStatus.Running:

					try {
						translatedX = e.TotalX;
						translatedY = e.TotalY;
					} catch (Exception err) {
						System.Diagnostics.Debug.WriteLine("" + err.Message);
					}
					break;

				case GestureStatus.Completed:

					System.Diagnostics.Debug.WriteLine("translatedX : " + translatedX);
					System.Diagnostics.Debug.WriteLine("translatedY : " + translatedY);

					if (translatedX < 0 && Math.Abs(translatedX) > Math.Abs(translatedY)) {
						mISwipeCallback.onLeftSwipe(Content);
					} else if (translatedX > 0 && translatedX > Math.Abs(translatedY)) {
						mISwipeCallback.onRightSwipe(Content);
					} else if (translatedY < 0 && Math.Abs(translatedY) > Math.Abs(translatedX)) {
						mISwipeCallback.onTopSwipe(Content);
					} else if (translatedY > 0 && translatedY > Math.Abs(translatedX)) {
						mISwipeCallback.onBottomSwipe(Content);
					} else {
						mISwipeCallback.onNothingSwiped(Content);
					}

					break;

			}
		}
	}
}

ISwipeCallBack.cs

using System;
using Xamarin.Forms;
namespace SwipeLib
{  
	public interface ISwipeCallBack
	{

		void onLeftSwipe(View view);
		void onRightSwipe(View view);
		void onTopSwipe(View view);
		void onBottomSwipe(View view);
		void onNothingSwiped(View view);
	}
}

Answer 1

Hello,

This is a known issue reported at GitHub-  [Android] Swipe gestures don't work on page with ListView · Issue #6863 · xamarin/Xamarin.Forms · GitHub. You could follow the progress at GitHub.

And you could refer to the solution which is based on ScrollView and ScrollViewRenderer, then try to create a custom Listview, and implement the method in ListViewRenderer. Please refer to Customizing a ListView - Xamarin | Microsoft Learn.

Best Regards,

Wenyan Zhang

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