diff options
Diffstat (limited to 'Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla32206.cs')
| -rw-r--r-- | Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla32206.cs | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla32206.cs b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla32206.cs new file mode 100644 index 00000000..428538f6 --- /dev/null +++ b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla32206.cs @@ -0,0 +1,142 @@ +using System; +using System.Collections.Generic; +using Xamarin.Forms.CustomAttributes; +using Xamarin.Forms.Internals; +using System.Threading; + +#if UITEST +using Xamarin.UITest; +using NUnit.Framework; +#endif + +namespace Xamarin.Forms.Controls.Issues +{ + [Preserve(AllMembers = true)] + [Issue(IssueTracker.Bugzilla, 32206, "ContextActions cause memory leak: Page is never destroyed", PlatformAffected.iOS)] + public class Bugzilla32206 : TestNavigationPage + { + protected override void Init() + { + PushAsync(new LandingPage32206()); + } + +#if UITEST && __IOS__ + [Test] + public void Bugzilla32206Test() + { + for (var n = 0; n < 10; n++) + { + RunningApp.WaitForElement(q => q.Marked("Push")); + RunningApp.Tap(q => q.Marked("Push")); + + RunningApp.WaitForElement(q => q.Marked("ListView")); + RunningApp.Back(); + } + + // At this point, the counter can be any value, but it's most likely not zero. + // Invoking GC once is enough to clean up all garbage data and set counter to zero + RunningApp.WaitForElement(q => q.Marked("GC")); + RunningApp.Tap(q => q.Marked("GC")); + + RunningApp.WaitForElement(q => q.Marked("Counter: 0")); + } +#endif + } + + [Preserve(AllMembers = true)] + public class LandingPage32206 : ContentPage + { + public static int Counter; + public Label Label; + + public LandingPage32206() + { + Label = new Label + { + Text = "Counter: " + Counter, + HorizontalTextAlignment = TextAlignment.Center, + VerticalTextAlignment = TextAlignment.Center + }; + + Content = new StackLayout + { + Orientation = StackOrientation.Vertical, + HorizontalOptions = LayoutOptions.Center, + VerticalOptions = LayoutOptions.Center, + Spacing = 15, + Children = + { + new Label + { + Text = "Click Push to show a ListView. When you hit the Back button, Counter will show the number of pages that have not been finalized yet." + + " If you click GC, the counter should be 0." + }, + Label, + new Button + { + Text = "GC", + AutomationId = "GC", + Command = new Command(o => + { + GC.Collect(); + GC.WaitForPendingFinalizers(); + GC.Collect(); + Label.Text = "Counter: " + Counter; + }) + }, + new Button + { + Text = "Push", + AutomationId = "Push", + Command = new Command(async o => + { + await Navigation.PushAsync(new ContentPage32206()); + }) + } + } + }; + } + + protected override void OnAppearing() + { + base.OnAppearing(); + + if (Label != null) + Label.Text = "Counter: " + Counter; + } + } + + [Preserve(AllMembers = true)] + public class ContentPage32206 : ContentPage + { + public ContentPage32206() + { + Interlocked.Increment(ref LandingPage32206.Counter); + System.Diagnostics.Debug.WriteLine("Page: " + LandingPage32206.Counter); + + Content = new ListView + { + ItemsSource = new List<string> { "Apple", "Banana", "Cherry" }, + ItemTemplate = new DataTemplate(typeof(ViewCell32206)), + AutomationId = "ListView" + }; + } + + ~ContentPage32206() + { + Interlocked.Decrement(ref LandingPage32206.Counter); + System.Diagnostics.Debug.WriteLine("Page: " + LandingPage32206.Counter); + } + } + + [Preserve(AllMembers = true)] + public class ViewCell32206 : ViewCell + { + public ViewCell32206() + { + View = new Label(); + View.SetBinding(Label.TextProperty, "."); + ContextActions.Add(new MenuItem { Text = "Delete" }); + } + } +}
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