One more use is that,
When u add static elements like button within the List, it wont be updated when view gets invalidated through a @Published property. We need ForEach within the List to get it updated.
@ObservedObject private(set) var viewModel: SongsViewModel
init() {
viewModel = SongsViewModel()
}
var body: some View {
VStack {
List {
ForEach(viewModel.songsList, id:\.self) { song in
Button(action: {
viewModel.didSelect(song: song)
}) {
FlatTileView(model: song)
.frame(height: 60)
}
}
}
}
}
}
In the above example, ViewModel gets updated when user gives us access to user's Media Library.
If i removed ForEach, the elements within the list will not be updated.
Sujananth
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