[Android] Fix SwipeGestureRecognizer not firing on CollectionView/ListView

src/Controls/src/Core/Platform/Android/TapAndPanGestureDetector.cs

@@ -40,19 +40,21 @@ public void UpdateLongPressSettings()
 
 		public override bool OnTouchEvent(MotionEvent ev)
 		{
-			if (base.OnTouchEvent(ev))
-				return true;
+			var handled = base.OnTouchEvent(ev);
 
 			if (_pointerGestureHandler != null && ev?.Action is
 				MotionEventActions.Up or MotionEventActions.Down or MotionEventActions.Cancel)
 			{
 				_pointerGestureHandler.OnTouch(ev);
 			}
 
+			// Always call EndScrolling on ACTION_UP to ensure swipe gestures are completed,
+			// regardless of whether the base gesture detector consumed the event.
+			// This fixes SwipeGestureRecognizer not working on scrollable views like CollectionView.
 			if (_listener != null && ev?.Action == MotionEventActions.Up)
 				_listener.EndScrolling();
 
-			return false;
+			return handled;
 		}
 
 		protected override void Dispose(bool disposing)

src/Controls/tests/TestCases.HostApp/Issues/Issue16624.xaml

@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
+             x:Class="Maui.Controls.Sample.Issues.Issue16624"
+             Title="Issue16624">
+    <VerticalStackLayout Padding="10">
+        <Label x:Name="StatusLabel"
+               AutomationId="StatusLabel" 
+               Text="Swipe left on the CollectionView to trigger the swipe gesture" 
+               FontSize="14"
+               Margin="0,0,0,10" />
+
+        <CollectionView AutomationId="TestCollectionView"
+                        HeightRequest="300"
+                        BackgroundColor="LightGray">
+            <CollectionView.GestureRecognizers>
+                <SwipeGestureRecognizer Direction="Left" Swiped="SwipeGestureRecognizer_Swiped" />
+                <SwipeGestureRecognizer Direction="Right" Swiped="SwipeGestureRecognizer_Swiped" />
+            </CollectionView.GestureRecognizers>
+            <CollectionView.ItemsSource>
+                <x:Array Type="{x:Type x:String}">
+                    <x:String>Item 1</x:String>
+                    <x:String>Item 2</x:String>
+                    <x:String>Item 3</x:String>
+                    <x:String>Item 4</x:String>
+                    <x:String>Item 5</x:String>
+                    <x:String>Item 6</x:String>
+                    <x:String>Item 7</x:String>
+                    <x:String>Item 8</x:String>
+                    <x:String>Item 9</x:String>
+                    <x:String>Item 10</x:String>
+                </x:Array>
+            </CollectionView.ItemsSource>
+            <CollectionView.ItemTemplate>
+                <DataTemplate>
+                    <Label Text="{Binding}" Padding="10" />
+                </DataTemplate>
+            </CollectionView.ItemTemplate>
+        </CollectionView>
+    </VerticalStackLayout>
+</ContentPage>

src/Controls/tests/TestCases.HostApp/Issues/Issue16624.xaml.cs

@@ -0,0 +1,15 @@
+namespace Maui.Controls.Sample.Issues;
+
+[Issue(IssueTracker.Github, 16624, "SwipeGesture is not working on a ListView/CollectionView", PlatformAffected.Android)]
+public partial class Issue16624 : ContentPage
+{
+	public Issue16624()
+	{
+		InitializeComponent();
+	}
+
+	private void SwipeGestureRecognizer_Swiped(object sender, SwipedEventArgs e)
+	{
+		StatusLabel.Text = $"Swiped {e.Direction}";
+	}
+}

src/Controls/tests/TestCases.Shared.Tests/Tests/Issues/Issue16624.cs

@@ -0,0 +1,71 @@
+#if ANDROID
+using NUnit.Framework;
+using UITest.Appium;
+using UITest.Core;
+
+namespace Microsoft.Maui.TestCases.Tests.Issues
+{
+	public class Issue16624 : _IssuesUITest
+	{
+		public Issue16624(TestDevice testDevice) : base(testDevice)
+		{
+		}
+
+		public override string Issue => "SwipeGesture is not working on a ListView/CollectionView";
+
+		[Test]
+		[Category(UITestCategories.Gestures)]
+		public void SwipeGestureOnCollectionViewShouldWork()
+		{
+			// Wait for the page to load
+			App.WaitForElement("TestCollectionView");
+			App.WaitForElement("StatusLabel");
+
+			// Get the CollectionView element to perform swipe on
+			var collectionView = App.WaitForElement("TestCollectionView");
+			var rect = collectionView.GetRect();
+			var centerX = rect.X + rect.Width / 2;
+			var centerY = rect.Y + rect.Height / 2;
+
+			// Perform a left swipe on the CollectionView
+			App.DragCoordinates(centerX + 100, centerY, centerX - 100, centerY);
+
+			// Wait for the status label to update
+			App.WaitForElement("StatusLabel");
+
+			// Verify the swipe was detected
+			var statusLabel = App.WaitForElement("StatusLabel");
+			var labelText = statusLabel.GetText();
+
+			Assert.That(labelText, Does.Contain("Swiped"), "Swipe gesture should be detected on CollectionView");
+		}
+
+		[Test]
+		[Category(UITestCategories.Gestures)]
+		public void SwipeRightGestureOnCollectionViewShouldWork()
+		{
+			// Wait for the page to load
+			App.WaitForElement("TestCollectionView");
+			App.WaitForElement("StatusLabel");
+
+			// Get the CollectionView element to perform swipe on
+			var collectionView = App.WaitForElement("TestCollectionView");
+			var rect = collectionView.GetRect();
+			var centerX = rect.X + rect.Width / 2;
+			var centerY = rect.Y + rect.Height / 2;
+
+			// Perform a right swipe on the CollectionView
+			App.DragCoordinates(centerX - 100, centerY, centerX + 100, centerY);
+
+			// Wait for the status label to update
+			App.WaitForElement("StatusLabel");
+
+			// Verify the swipe was detected
+			var statusLabel = App.WaitForElement("StatusLabel");
+			var labelText = statusLabel.GetText();
+
+			Assert.That(labelText, Does.Contain("Swiped"), "Swipe gesture should be detected on CollectionView");
+		}
+	}
+}
+#endif