Read more: Loading async data for SwiftUI views
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License: MIT License
Read more: Loading async data for SwiftUI views
While testing this implementation, I found that updating the view state from the task block does not work. Simply changing the ContentView
to the following will show that Text("Hello, \(data)!")
will be printed as Hello, First!
on the screen. I am expecting to see Hello, Third!
struct ContentView: View {
@State private var data = "First"
var body: some View {
ContentPrepareView {
VStack {
Image(systemName: "globe")
.imageScale(.large)
.foregroundStyle(.tint)
Text("Hello, \(data)!")
}
.padding()
} task: {
data = "Second"
try await Task.sleep(nanoseconds: 2_000_000_000)
data = "Third"
}
}
}
If I change data = "Third"
to Task { data = "Third" }
, Hello, Third!
will be shown. Is this expected behaviour?
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