I found an unexpected behavior with the pinnedViews (header, footer) in LazyVStack. When you have a LazyVStack with buttons and scroll through it, you can sometimes click the button even it's behind a pinned view.
When you have a VStack with a View and a LazyVStack and scroll though the list, sometimes the buttons will trigger even through the top view above the LazyVStack.
Example Code -> Scroll the List and click e.g. in the Top Area or Header. Sometimes the button is triggered. Especially if the list scrolls slow and sometimes even without scrolling.
struct Test3: View {
		var headerView: some View {
				ZStack{
						Rectangle()
								.opacity(0.8)
						Text("Header")
								.foregroundColor(.orange)
				}.frame(height: 50)
		}
		
		var footerView: some View {
				ZStack{
						Rectangle()
								.opacity(0.8)
						Text("Footer")
								.foregroundColor(.orange)
				}.frame(height: 50)
		}
		
		var body: some View {
				VStack{
						ZStack{
								Rectangle()
										.opacity(0.9)
								Text("Top Area")
										.foregroundColor(.orange)
						}
						.frame(height: 40)
						ScrollView {
								LazyVStack(alignment: .center, spacing: 10, pinnedViews: [.sectionHeaders, .sectionFooters], content: {
										ForEach(1...4, id: \.self) { section in
												Section(header: headerView, footer: footerView) {
														ForEach(1..<121) { item in
																Button(action: {
																		print("action")
																},
																label: {
																		ZStack{
																				Rectangle()
																						.frame(height: 34)
																				Text("Section: \(section), Item: \(item)")
																						.foregroundColor(.orange)
																		}
																		.padding(.horizontal, 20)
																})
														}
												}
										}
								})
						}
				}
		}
}
HeGer
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Will the menus come to SwiftUI for iPhone?
My app crashes on iPhone/iPad Simulator when I'm using 2 ForEach in a LazyVStack. In the Canvas is works perfectly fine.
Error message is: 'Fatal error: each layout item may only occur once'
Minimum example:
struct ContentView: View {
var body: some View {
ScrollView {
LazyVStack{
ForEach(0...2, id: \.self) { _ in
Section {
ForEach(0..<2, id: \.self) { idx in
Text("Section Cell \(idx)")
}
}
}
}
}
}
}
If you change the LazyVStack with Vstack it work and if you delete one of the ForEach it work also on the simulator.
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