1 files changed, 106 insertions, 0 deletions
diff --git a/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Issue1680.cs b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Issue1680.cs
new file mode 100644
index 00000000..eb98b5ed
--- /dev/null
+++ b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Issue1680.cs
@@ -0,0 +1,106 @@
+using System;
+using System.Collections.ObjectModel;
+
+using Xamarin.Forms.CustomAttributes;
+
+namespace Xamarin.Forms.Controls
+{
+	[Preserve (AllMembers=true)]
+	[Issue (IssueTracker.Github, 1680, "Disposed object updating ListView ItemSource", PlatformAffected.Android)]
+	public class Issue1680 : ContentPage
+	{
+		XamarinListViewBug _page1 = new XamarinListViewBug();
+
+		public Issue1680()
+		{
+			var button1 = new Button { Text = "PAGE1" };
+
+			button1.Clicked += (sender, e) => Navigation.PushAsync (_page1);
+
+			var root = new StackLayout {
+				HorizontalOptions = LayoutOptions.FillAndExpand,
+				VerticalOptions = LayoutOptions.FillAndExpand,
+				Children = {
+					button1,
+				}
+			};
+
+			Content = root;
+		}
+
+		public class XamarinListViewBug : MasterDetailPage
+		{
+			bool _flag;
+
+			readonly ObservableCollection<Tuple<string, string>> _collection = new ObservableCollection<Tuple<string, string>>();
+
+			void FillTheList()
+			{
+				_collection.Clear();
+
+				for (int i = 0; i < 100; i++) {
+					var item = new Tuple<string, string> (
+						string.Format ("{0} {0} {0} {0} {0} {0}", _flag ? i : 100 - i),
+						string.Format ("---- i ----{0} {0} {0} {0} {0} {0}", _flag ? i : 100 - i)
+						);
+
+
+					_collection.Add (item);
+				}
+
+				_flag = !_flag;
+			}
+
+			public XamarinListViewBug()
+			{
+				Title = "XamarinListViewBug";
+
+				SearchBar search = new SearchBar();
+				search.SearchButtonPressed += (sender, e) => FillTheList();
+
+				ListView list = new ListView {
+					HorizontalOptions = LayoutOptions.FillAndExpand,
+					VerticalOptions = LayoutOptions.FillAndExpand,
+					HasUnevenRows = true,
+					ItemsSource = _collection,
+					ItemTemplate = new DataTemplate (typeof (CellTemplate))
+				};
+
+				StackLayout root = new StackLayout {
+					HorizontalOptions = LayoutOptions.FillAndExpand,
+					VerticalOptions = LayoutOptions.FillAndExpand,
+					Children = {
+						search,
+						list,
+					}
+				};
+
+				Master = new ContentPage { Title = "Master" };
+				Detail = new ContentPage {
+					Title = "Detail",
+					Content = root
+				};
+			}
+
+			class CellTemplate : ViewCell
+			{
+				public CellTemplate()
+				{
+					Label cellLabel = new Label{
+						HorizontalOptions = LayoutOptions.FillAndExpand,
+					};
+
+					cellLabel.SetBinding (Label.TextProperty, new Binding ("Item1", BindingMode.OneWay));
+
+					StackLayout root = new StackLayout {
+						Children = {
+							cellLabel
+						}
+					};
+
+					View = root;
+				}
+			}
+		}
+	}
+}
+\ No newline at end of file