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No leaks now in the first ListView test. #1

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Feb 12, 2021
Merged

No leaks now in the first ListView test. #1

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191 changes: 99 additions & 92 deletions XFMVXTestApp.Core/ViewModels/ListViewTestViewModel.cs
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Original file line number Diff line number Diff line change
@@ -1,94 +1,101 @@
using System;
using System.Collections.ObjectModel;
using System.Threading.Tasks;
using MvvmCross.Navigation;
using MvvmCross.Plugin.Messenger;
using MvvmCross.ViewModels;
using XFMVXTestApp.Core.Models;

namespace XFMVXTestApp.Core.ViewModels
{
public class ListViewTestViewModel : BaseViewModel, IMvxViewModel<ListViewTestParameter>
{
#region Properties

private int _number;
public int Number
{
get { return _number; }
set { SetProperty(ref _number, value); }
}

private bool _largeStyle;
private IMvxNavigationService _navService;
private IMvxMessenger _messenger;

public bool LargeStyle
{
get => _largeStyle;
set => SetProperty(ref _largeStyle, value);
}

public ObservableCollection<TestItem> TestItems { get; } = new ObservableCollection<TestItem>();

public bool TestItemsUpdated { get; private set; }

private bool _isExpanded = true;

public bool IsExpanded
{
get
{
return _isExpanded;
}
set
{
SetProperty(ref _isExpanded, value);
}
}
#endregion

#region Commands

#endregion

public ListViewTestViewModel(
IMvxNavigationService navService,
IMvxMessenger messenger)
{
_navService = navService;
_messenger = messenger;
}

public override void ViewAppeared()
{
base.ViewAppeared();

RaisePropertyChanged(() => TestItemsUpdated);
}

public override async Task Initialize()
{
await base.Initialize();
}

public void Prepare(ListViewTestParameter parameter)
{
PopulateTestItems(parameter.NumberOfItems);
}

private void PopulateTestItems(int numberOfItems)
{
for (int i = 1; i <= numberOfItems; i++)
{
TestItems.Add(new TestItem()
{
Height = 20 + 10 * (i % 5),
SequenceNumber = i.ToString(),
CreatedTime = DateTime.Now.ToString("HH:mm:ss.fff")
});
}
}
}

}
using System.Threading.Tasks;
using MvvmCross.Navigation;
using MvvmCross.Plugin.Messenger;
using MvvmCross.ViewModels;
using XFMVXTestApp.Core.Models;

namespace XFMVXTestApp.Core.ViewModels
{
public class ListViewTestViewModel : BaseViewModel, IMvxViewModel<ListViewTestParameter>
{
#region Properties

private int _number;
public int Number
{
get { return _number; }
set { SetProperty(ref _number, value); }
}

private bool _largeStyle;
private IMvxNavigationService _navService;
private IMvxMessenger _messenger;

public bool LargeStyle
{
get => _largeStyle;
set => SetProperty(ref _largeStyle, value);
}

public ObservableCollection<TestItem> TestItems { get; } = new ObservableCollection<TestItem>();

public bool TestItemsUpdated { get; private set; }

private bool _isExpanded = true;

public bool IsExpanded
{
get
{
return _isExpanded;
}
set
{
SetProperty(ref _isExpanded, value);
}
}
#endregion

#region Commands

#endregion

public ListViewTestViewModel(
IMvxNavigationService navService,
IMvxMessenger messenger)
{
_navService = navService;
_messenger = messenger;
}

//public override void ViewAppeared()
//{
// base.ViewAppeared();

// RaisePropertyChanged(() => TestItemsUpdated);
//}

public override async Task Initialize()
{
await base.Initialize();
}

public void Prepare(ListViewTestParameter parameter)
{
if (Number == 0)
{
Number = parameter.NumberOfItems;
}
PopulateTestItems(Number);
}

private void PopulateTestItems(int numberOfItems)
{
for (int i = 1; i <= numberOfItems; i++)
{
if (IsExpanded || (i % 2 == 0))
{
TestItems.Add(new TestItem()
{
Height = 20 + 10 * (i % 5),
SequenceNumber = i.ToString(),
CreatedTime = DateTime.Now.ToString("HH:mm:ss.fff")
});
}
}
}
}

}