The ScrollPosition type is all you need to programmatically read or change the scroll position. Still, it doesn’t provide enough information when a user interacts with a scroll view using gestures. SwiftUI solves this problem by introducing the new ScrollGeometry type. This week, we will learn how to use the new onScrollGeometryChange view modifier to monitor scroll geometry.

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Learn how to efficiently track and monitor scroll geometry changes in SwiftUI using the onScrollGeometryChange view modifier. The post explains the limitations of the existing ScrollPosition type and introduces the new ScrollGeometry type. Detailed examples show how to bind scroll views to state properties and use the onScrollGeometryChange modifier to read content offset, track the Y-axis, and combine various properties like content size and visible rectangle.

Mastering ScrollView in SwiftUI. Scroll Geometry