[iOS] Fixed the RemainingItemsThresholdReachedCommand not firing issue in CollectionView #26067
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Issue Detail
The RemainingItemsThresholdReachedCommand is not triggered as expected on macOS and iOS platforms.
Root Cause
On macOS and iOS, the index of the items was only being updated based on the currently visible items. During scrolling, the index was not recalculated correctly, which caused the command to fail when the remaining items threshold was reached.
Description of Change
Updated the logic to ensure the index of items is recalculated accurately during scrolling. This change ensures that the RemainingItemsThresholdReachedCommand is triggered correctly when the threshold condition is met on macOS and iOS.
Tested the behaviour in the following platforms
Issues Fixed
Fixes #25889
Screenshots
Before.Fix.mov
After.Fix.mov