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[Catalyst] Click-Dragging Behavior in CollectionView #29616

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Merged
merged 2 commits into from
May 28, 2025
Merged

[Catalyst] Click-Dragging Behavior in CollectionView #29616

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dddf88c
CollectionView drag changes on Mac
Tamilarasan-Paranthaman May 22, 2025
4b09a5b
Mac drag changes
Tamilarasan-Paranthaman May 23, 2025
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10 changes: 10 additions & 0 deletions src/Controls/src/Core/Handlers/Items/iOS/ReorderableItemsViewController.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,10 @@ public class ReorderableItemsViewController<TItemsView> : GroupableItemsViewCont
bool _disposed;
UILongPressGestureRecognizer _longPressGestureRecognizer;

#if MACCATALYST
const double defaultMacCatalystPressDuration = 0.1;
#endif

public ReorderableItemsViewController(TItemsView reorderableItemsView, ItemsViewLayout layout)
: base(reorderableItemsView, layout)
{
Expand Down Expand Up @@ -162,6 +166,12 @@ public void UpdateCanReorderItems()
if (_longPressGestureRecognizer == null)
{
_longPressGestureRecognizer = new UILongPressGestureRecognizer(HandleLongPress);
#if MACCATALYST
// On Mac Catalyst, we disable the default drag interaction and instead handle dragging using a long press gesture recognizer.
// Since a long press typically takes more time to trigger than the system's default drag interaction,
// we reduce the minimum press duration to 0.1 seconds to better match the previous behavior.
_longPressGestureRecognizer.MinimumPressDuration = defaultMacCatalystPressDuration;
#endif
CollectionView.AddGestureRecognizer(_longPressGestureRecognizer);
}
}
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10 changes: 10 additions & 0 deletions src/Controls/src/Core/Handlers/Items2/iOS/ReorderableItemsViewController2.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,10 @@ public class ReorderableItemsViewController2<TItemsView> : GroupableItemsViewCon
bool _disposed;
UILongPressGestureRecognizer _longPressGestureRecognizer;

#if MACCATALYST
const double defaultMacCatalystPressDuration = 0.1;
#endif

public ReorderableItemsViewController2(TItemsView reorderableItemsView, UICollectionViewLayout layout)
: base(reorderableItemsView, layout)
{
Expand Down Expand Up @@ -162,6 +166,12 @@ public void UpdateCanReorderItems()
if (_longPressGestureRecognizer == null)
{
_longPressGestureRecognizer = new UILongPressGestureRecognizer(HandleLongPress);
#if MACCATALYST
// On Mac Catalyst, we disable the default drag interaction and instead handle dragging using a long press gesture recognizer.
// Since a long press typically takes more time to trigger than the system's default drag interaction,
// we reduce the minimum press duration to 0.1 seconds to better match the previous behavior.
_longPressGestureRecognizer.MinimumPressDuration = defaultMacCatalystPressDuration;
#endif
CollectionView.AddGestureRecognizer(_longPressGestureRecognizer);
}
}
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