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using System.Collections.ObjectModel;
using System.Linq;
using Xamarin.Forms.CustomAttributes;
using Xamarin.Forms.Internals;
#if UITEST
using Xamarin.Forms.Core.UITests;
using Xamarin.UITest;
using NUnit.Framework;
#endif
namespace Xamarin.Forms.Controls.Issues
{
[Preserve(AllMembers = true)]
[Issue(IssueTracker.Bugzilla, 53834, "incorrect row heights on ios when using groupheadertemplate in Xamarin.Forms 2.3.4.214-pre5", PlatformAffected.iOS)]
public class Bugzilla53834 : TestContentPage
{
const string Instructions = "";
ObservableCollection<GroupedItem> grouped { get; set; }
ListView lstView;
class MyViewCell : ViewCell
{
public MyViewCell()
{
var label = new Label { HeightRequest = 66, VerticalOptions = LayoutOptions.Start };
label.SetBinding(Label.TextProperty, ".");
View = new StackLayout { Padding = 10, Children = { label } };
}
}
class MyHeaderViewCell : ViewCell
{
public MyHeaderViewCell()
{
Height = 25;
var label = new Label { VerticalOptions = LayoutOptions.Center };
label.SetBinding(Label.TextProperty, nameof(GroupedItem.LongName));
View = label;
}
}
class GroupedItem : ObservableCollection<string>
{
public string LongName { get; set; }
public string ShortName { get; set; }
}
protected override void Init()
{
var label = new Label { Text = Instructions };
grouped = new ObservableCollection<GroupedItem>();
lstView = new ListView()
{
IsGroupingEnabled = true,
HasUnevenRows = true,
ItemTemplate = new DataTemplate(typeof(MyViewCell)),
GroupHeaderTemplate = new DataTemplate(typeof(MyHeaderViewCell)),
ItemsSource = grouped,
};
var grp1 = new GroupedItem() { LongName = "Group 1", ShortName = "1" };
var grp2 = new GroupedItem() { LongName = "Group 2", ShortName = "2" };
for (int i = 1; i < 4; i++)
{
grp1.Add($"I am a short text #{i}");
grp1.Add($"I am a long text that should cause the line to wrap, and I should not be cut off or overlapping in any way. #{i}");
grp2.Add($"I am a short text #{i}");
grp2.Add($"I am a long text that should cause the line to wrap, and I should not be cut off or overlapping in any way. #{i}");
}
grouped.Add(grp1);
grouped.Add(grp2);
Content = new StackLayout
{
Children = {
label,
lstView
}
};
}
#if (UITEST && __IOS__)
[Test]
[Category(UITestCategories.ManualReview)]
public void Bugzilla53834Test()
{
RunningApp.Screenshot("incorrect row heights test");
}
#endif
}
}
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