Sidebar - Collapsible Sections?

Question

Created Jun ’20

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I'm looking for any pointers or sample code that may exist for how to implement collapsible sections in a sidebar just like the new Photos app (and several other Apple apps).

It looks like it should be a standard component but I can't find it anywhere.

Thanks

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Answer 1

col_harris OP

Jun ’20

To clarify, I'm trying to do this with SwiftUI. From what I can see the collapsible sections is a new UICollectionView feature.

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Answer 2

jl_siewert OP

Jun ’20

You can use the new [OutlineGroup](https://developer.apple.com/documentation/swiftui/outlinegroup) view for your elements, wrap them in a List, and display them with the SidebarListStyle. The items collapse only when tapping the chevron.

Using the FileItem from the OutlineGroup example, that would simply mean something like this:

Code Block `		List {
   			OutlineGroup(data, children: \.children) { item in
       		Text ("\(item.description)")
   			}
		}.listStyle(SidebarListStyle())

`

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