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[iOS] Fix HEIC images picked via PickPhotosAsync not displayed #34954

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Merged
kubaflo merged 1 commit into from
Apr 15, 2026
Merged

[iOS] Fix HEIC images picked via PickPhotosAsync not displayed #34954

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8 changes: 8 additions & 0 deletions src/Essentials/src/MediaPicker/MediaPicker.ios.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -502,6 +502,14 @@ class PhotoPickerDelegate : PHPickerViewControllerDelegate

public override void DidFinishPicking(PHPickerViewController picker, PHPickerResult[] results)
{
// Null out the presentation delegate handler before dismiss to prevent a GC race condition.
// Without this, Dispose() on PhotoPickerPresentationControllerDelegate can fire tcs.TrySetResult([])
// while the async CompletedHandler is still processing (especially slow for HEIC transcoding).
if (picker.PresentationController?.Delegate is PhotoPickerPresentationControllerDelegate pd)
{
pd.Handler = null;
}

var captured = results?.Length > 0 ? results : [];
picker.DismissViewController(true, () => CompletedHandler?.Invoke(captured));
}
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