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using System;
using Xamarin.Forms.CustomAttributes;
using System.Threading.Tasks;
using Xamarin.Forms.Internals;
#if UITEST
using Xamarin.UITest;
using NUnit.Framework;
#endif
namespace Xamarin.Forms.Controls
{
[Preserve (AllMembers = true)]
[Issue (IssueTracker.Bugzilla, 32615, "OnAppearing is not called on previous page when modal page is popped")]
public class Bugzilla32615 : TestContentPage // or TestMasterDetailPage, etc ...
{
int _counter;
Label _textField;
protected override void Init ()
{
var btnModal = new Button { AutomationId = "btnModal", Text = "open", HorizontalOptions = LayoutOptions.FillAndExpand, VerticalOptions = LayoutOptions.FillAndExpand };
btnModal.Clicked += async (sender, e) => await Navigation.PushModalAsync (new Bugzilla32615Page2 ());
_textField = new Label { AutomationId = "lblCount"};
var layout = new StackLayout ();
layout.Children.Add (btnModal);
layout.Children.Add (_textField);
// Initialize ui here instead of ctor
Content = layout;
}
protected override void OnAppearing()
{
_textField.Text = _counter++.ToString();
}
class Bugzilla32615Page2 : ContentPage
{
public Bugzilla32615Page2 ()
{
var btnPop = new Button { AutomationId = "btnPop", Text = "pop", HorizontalOptions = LayoutOptions.FillAndExpand, VerticalOptions = LayoutOptions.FillAndExpand };
btnPop.Clicked += async (sender, e) => await Navigation.PopModalAsync ();
Content = btnPop;
}
protected override void OnDisappearing ()
{
System.Diagnostics.Debug.WriteLine ("Disappearing Modal");
base.OnDisappearing ();
}
protected override void OnAppearing ()
{
System.Diagnostics.Debug.WriteLine ("Appearing Modal");
base.OnAppearing ();
}
}
#if UITEST
[Test]
public async Task Bugzilla32615Test ()
{
RunningApp.Tap (q => q.Marked ("btnModal"));
RunningApp.Tap (q => q.Marked ("btnPop"));
await Task.Delay (1000);
var lbl = RunningApp.WaitForElement (c => c.Marked("lblCount"));
Assert.AreEqual ("1", lbl [0].Text);
}
#endif
}
}
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