[iOS] SwipeView: Fix reenabling parent scrolling after cancelled swipe (#23442)

Redth · web-flow · commit 760cbb2c9aa2 · 2024-09-09T13:59:57.000-04:00
### Description of Change Fixes an issue where scrolling of SwipeView's parent is disabled during swipe but not reenabled when the swipe is cancelled by manually moving the touch below the threshold. ### Issues Fixed Fixes #23441 Fixes #16856
diff --git a/src/Core/src/Platform/iOS/MauiSwipeView.cs b/src/Core/src/Platform/iOS/MauiSwipeView.cs
@@ -517,7 +517,7 @@ void IsParentScrollEnabled(bool scrollEnabled)
 		{
 			var swipeThresholdPercent = MinimumOpenSwipeThresholdPercentage * GetSwipeThreshold();
 
-			if (Math.Abs(_swipeOffset) < swipeThresholdPercent)
+			if (!scrollEnabled && Math.Abs(_swipeOffset) < swipeThresholdPercent)
 				return;
 
 			if (scrollEnabled == _isScrollEnabled)

Original file line number	Diff line number	Diff line change
`@@ -517,7 +517,7 @@ void IsParentScrollEnabled(bool scrollEnabled)`
`517`	`517`	`{`
`518`	`518`	`var swipeThresholdPercent = MinimumOpenSwipeThresholdPercentage * GetSwipeThreshold();`
`519`	`519`
`520`		`- if (Math.Abs(_swipeOffset) < swipeThresholdPercent)`
	`520`	`+ if (!scrollEnabled && Math.Abs(_swipeOffset) < swipeThresholdPercent)`
`521`	`521`	`return;`
`522`	`522`
`523`	`523`	`if (scrollEnabled == _isScrollEnabled)`