1 files changed, 74 insertions, 0 deletions
diff --git a/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla32898.cs b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla32898.cs
new file mode 100644
index 00000000..ceb91e2b
--- /dev/null
+++ b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla32898.cs
@@ -0,0 +1,74 @@
+using System;
+
+using Xamarin.Forms.CustomAttributes;
+using System.Threading.Tasks;
+
+#if UITEST
+using Xamarin.UITest;
+using NUnit.Framework;
+#endif
+
+namespace Xamarin.Forms.Controls
+{
+	[Preserve (AllMembers = true)]
+	[Issue (IssueTracker.Bugzilla, 32898, "Memory leak when TabbedPage is popped out ")]
+	public class Bugzilla32898 : TestContentPage
+	{
+		WeakReference _page2Tracker;
+		WeakReference _tabTracker;
+
+		protected override void Init ()
+		{
+			var stack = new StackLayout () { VerticalOptions = LayoutOptions.Center };
+
+			stack.Children.Add (new Label () {
+				VerticalOptions = LayoutOptions.Center,
+				XAlign = TextAlignment.Center,
+				Text = "Page 1"
+			});
+
+			Content = stack;
+		}
+
+		protected override async void OnAppearing ()
+		{
+			base.OnAppearing ();
+
+			if (_page2Tracker == null) {
+				var page2 = new TabbedPage () { Children = { new ContentPage () { Title = "tab" } } };
+				page2.Appearing += async delegate {
+					await Task.Delay (1000);
+					await page2.Navigation.PopModalAsync ();
+				};
+
+				_page2Tracker = new WeakReference (page2, false);
+				_tabTracker = new WeakReference (page2.Children [0], false);
+
+				await Task.Delay (1000);
+				await Navigation.PushModalAsync (page2);
+
+				StartTrackPage2 ();
+			}
+		}
+
+		async void StartTrackPage2 ()
+		{
+			while (true) {
+				((Label)((StackLayout)Content).Children [0]).Text =
+						$"Page1. But Page2 IsAlive = {_page2Tracker.IsAlive}, tab IsAlive = {_tabTracker.IsAlive}";
+
+				await Task.Delay (1000);
+				GC.Collect ();
+			}
+		}
+
+		#if UITEST
+		[Test]
+		public async void Issu32898Test ()
+		{
+			await Task.Delay (5000);
+			RunningApp.WaitForElement (q => q.Marked ("Page1. But Page2 IsAlive = False, tab IsAlive = False"));
+		}
+		#endif
+	}
+}