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Call LayoutIfNeeded on ObservableGroupedSource.Reload #15439

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Call LayoutIfNeeded on ObservableGroupedSource.Reload #15439

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12 changes: 2 additions & 10 deletions Xamarin.Forms.Platform.iOS/CollectionView/ObservableGroupedSource.cs
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Expand Up @@ -131,7 +131,7 @@ void CollectionChanged(object sender, NotifyCollectionChangedEventArgs args)
{
if (Device.IsInvokeRequired)
{
Device.BeginInvokeOnMainThread(() => CollectionChanged(args));
Device.BeginInvokeOnMainThread(() => CollectionChanged(args));
}
else
{
Expand Down Expand Up @@ -168,15 +168,7 @@ void Reload(bool collectionWasReset = false)
ResetGroupTracking();

_collectionView.ReloadData();

// I'm trying to modify as little as possible
// due to possible unpredictable consequences including perf. degradation
// https://github.com/xamarin/Xamarin.Forms/issues/13268
if (collectionWasReset)
{
_collectionView.LayoutIfNeeded();
}

_collectionView.LayoutIfNeeded();
_collectionView.CollectionViewLayout.InvalidateLayout();
}

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