[Android] CollectionView selection with drag/drop gestures on Android - fix

src/Controls/src/Core/Platform/GestureManager/GesturePlatformManager.Android.cs

@@ -282,7 +282,37 @@ void OnPlatformViewTouched(object? sender, AView.TouchEventArgs e)
 			}
 
 			if (e.Event != null)
+			{
+				// Process the touch event for this view's gestures
 				OnTouchEvent(e.Event);
+
+				// Allow event bubbling when only drag/drop recognizers are present
+				// For other gestures, allow bubbling so parent behaviors (like item selection) work
+				if (ShouldAllowEventBubbling())
+				{
+					e.Handled = false;
+				}
+			}
+		}
+
+		bool ShouldAllowEventBubbling()
+		{
+			if (View == null)
+				return false;
+
+			var recognizers = View.GetCompositeGestureRecognizers();
+			if (recognizers == null || recognizers.Count == 0)
+				return false;
+
+			// Don't allow bubbling if we other recognizers than drag and drop
+			foreach (var recognizer in recognizers)
+			{
+				if (recognizer is not DragGestureRecognizer && recognizer is not DropGestureRecognizer)
+					return false;
+			}
+
+			// Only drag/drop recognizers present, allow bubbling
+			return true;
 		}
 
 		void SetupElement(VisualElement? oldElement, VisualElement? newElement)

src/Controls/tests/TestCases.HostApp/Issues/Issue32702.xaml

@@ -0,0 +1,36 @@
+<?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.Issue32702"
+             Title="Issue 32702 - CollectionView Selection with Drag/Drop Gestures">
+
+    <VerticalStackLayout Padding="20" Spacing="10">
+        <Label Text="Tap items to select them"
+               AutomationId="InstructionLabel"/>
+
+        <Label x:Name="StatusLabel" 
+               Text="No selection"
+               AutomationId="StatusLabel"/>
+
+        <CollectionView x:Name="TestCollectionView" 
+                        SelectionMode="Single" 
+                        SelectionChanged="OnSelectionChanged"
+                        AutomationId="TestCollectionView">
+            <CollectionView.ItemTemplate>
+                <DataTemplate>
+                    <Label Text="{Binding .}" 
+                           HeightRequest="50"
+                           Padding="16,8"
+                           BackgroundColor="LightGray"
+                           Margin="4"
+                           AutomationId="{Binding .}">
+                        <Label.GestureRecognizers>
+                            <DropGestureRecognizer AllowDrop="True" />
+                            <DragGestureRecognizer />
+                        </Label.GestureRecognizers>
+                    </Label>
+                </DataTemplate>
+            </CollectionView.ItemTemplate>
+        </CollectionView>
+    </VerticalStackLayout>
+</ContentPage>

src/Controls/tests/TestCases.HostApp/Issues/Issue32702.xaml.cs

@@ -0,0 +1,38 @@
+using System.Collections.ObjectModel;
+
+namespace Maui.Controls.Sample.Issues;
+
+[Issue(IssueTracker.Github, 32702, "CollectionView item selection doesn't work when DragGestureRecognizer or DropGestureRecognizer is attached to item content", PlatformAffected.Android)]
+public partial class Issue32702 : ContentPage
+{
+	public ObservableCollection<string> Items { get; set; }
+
+	public Issue32702()
+	{
+		InitializeComponent();
+
+		Items = new ObservableCollection<string>
+			{
+				"Item 1",
+				"Item 2",
+				"Item 3",
+				"Item 4",
+				"Item 5"
+			};
+
+		TestCollectionView.ItemsSource = Items;
+	}
+
+	private void OnSelectionChanged(object sender, SelectionChangedEventArgs e)
+	{
+		if (e.CurrentSelection.Count > 0)
+		{
+			var selectedItem = e.CurrentSelection[0].ToString();
+			StatusLabel.Text = $"Selected: {selectedItem}";
+		}
+		else
+		{
+			StatusLabel.Text = "No selection";
+		}
+	}
+}

src/Controls/tests/TestCases.Shared.Tests/Tests/Issues/Issue32702.cs

@@ -0,0 +1,38 @@
+using NUnit.Framework;
+using UITest.Appium;
+using UITest.Core;
+
+namespace Microsoft.Maui.TestCases.Tests.Issues;
+
+public class Issue32702 : _IssuesUITest
+{
+	public Issue32702(TestDevice device) : base(device)
+	{
+	}
+
+	public override string Issue => "CollectionView item selection doesn't work when DragGestureRecognizer or DropGestureRecognizer is attached to item content";
+
+	[Test]
+	[Category(UITestCategories.CollectionView)]
+	public void CollectionViewSelectionWorksWithDragDropGestures()
+	{
+		// Wait for CollectionView to load
+		App.WaitForElement("TestCollectionView");
+
+		// Verify initial state
+		var statusLabel = App.WaitForElement("StatusLabel");
+		Assert.That(statusLabel.GetText(), Is.EqualTo("No selection"));
+
+		// Tap on first item
+		App.Tap("Item 1");
+
+		// Verify selection changed
+		Assert.That(statusLabel.GetText(), Is.EqualTo("Selected: Item 1"));
+
+		// Tap on second item
+		App.Tap("Item 2");
+
+		// Verify selection changed again
+		Assert.That(statusLabel.GetText(), Is.EqualTo("Selected: Item 2"));
+	}
+}