SwiftUI slow list update?

Question

Created Jul ’20

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I have a fairly complicated ObservedObject with the following setup:

class ThreadDataStore: ObservableObject {
@Published var childCommentList: [Int]
@Published var childComments: [Int: CommentDataStore]
}

View: some View {
ForEach(threadDataStore.childCommentList, \.self) { id in
CommentView(comment: childComments[id]!)
}
}

When I have let's say 100-200 comments, then each loading becomes slower and slower.

Is the way I'm setting up my ObservableObjects not intended?

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Answer 1

byaruhaf OP

Jul ’20

The ForEach should be wrapped in a list

Code Block     View: some View {
        List {
            ForEach(threadDataStore.childCommentList, \.self) { id in
                CommentView(comment: childComments[id]!)
            }
        }
    }

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