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diff --git a/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla39489.cs b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla39489.cs
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index 0000000..266b0fa
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+++ b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla39489.cs
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+using Xamarin.Forms.CustomAttributes;
+using Xamarin.Forms.Internals;
+using System.Threading;
+using System;
+using System.Threading.Tasks;
+using Xamarin.Forms.Maps;
+
+#if UITEST
+using Xamarin.UITest;
+using NUnit.Framework;
+#endif
+
+namespace Xamarin.Forms.Controls
+{
+ [Preserve(AllMembers = true)]
+ [Issue(IssueTracker.Bugzilla, 39489, "Memory leak when using NavigationPage with Maps", PlatformAffected.Android)]
+ public class Bugzilla39489 : TestNavigationPage
+ {
+ protected override void Init()
+ {
+ PushAsync(new Bz39489Content());
+ }
+
+ #if UITEST
+ [Test]
+ public async void Bugzilla39458Test()
+ {
+ // Original bug report (https://bugzilla.xamarin.com/show_bug.cgi?id=39489) had a crash (OOM) after 25-30
+ // page loads. Obviously it's going to depend heavily on the device and amount of available memory, but
+ // if this starts failing before 50 we'll know we've sprung another serious leak
+ int iterations = 50;
+
+ for (int n = 0; n < iterations; n++)
+ {
+ RunningApp.WaitForElement(q => q.Marked("New Page"));
+ RunningApp.Tap(q => q.Marked("New Page"));
+ RunningApp.WaitForElement(q => q.Marked("New Page"));
+ await Task.Delay(1000);
+ RunningApp.Back();
+ }
+ }
+ #endif
+ }
+
+ [Preserve(AllMembers = true)]
+ public class Bz39489Content : ContentPage
+ {
+ public Bz39489Content()
+ {
+ var button = new Button { Text = "New Page" };
+
+ var gcbutton = new Button { Text = "GC" };
+
+ var map = new Map();
+
+ button.Clicked += Button_Clicked;
+ gcbutton.Clicked += GCbutton_Clicked;
+
+ Content = new StackLayout { Children = { button, gcbutton, map } };
+ }
+
+ void GCbutton_Clicked(object sender, EventArgs e)
+ {
+ System.Diagnostics.Debug.WriteLine(">>>>>>>> Running Garbage Collection");
+ GC.Collect();
+ GC.WaitForPendingFinalizers();
+ System.Diagnostics.Debug.WriteLine($">>>>>>>> GC.GetTotalMemory = {GC.GetTotalMemory(true):n0}");
+ }
+
+ void Button_Clicked(object sender, EventArgs e)
+ {
+ Navigation.PushAsync(new Bz39489Content());
+ }
+ }
+} \ No newline at end of file