When I switched to observable, I noticed a strange behavior of the ViewModel. The ViewModel is created 3x times. And my question is:
How to properly initialize the ViewModel via state?
Below is a minimal example with log output:
ViewModel INIT : EBBB2C41
ViewModel INIT : D8E490DA
ViewModel INIT : 54407300
ViewModel DEINIT: D8E490DA
@Observable
final class ViewModel {
@ObservationIgnored let idd: UUID
init() {
idd = UUID()
print("ViewModel INIT : \(idd.uuidString.prefix(8))")
}
deinit {
print("ViewModel DEINIT: \(idd.uuidString.prefix(8))")
}
}
struct SimpleView: View {
@Environment(ViewModel.self) private var viewModel
var body: some View {
@Bindable var viewModel = viewModel
Text("SimpleView: \(viewModel.idd.uuidString.prefix(8))")
}
}
struct ContentView: View {
@State private var viewModel = ViewModel()
var body: some View {
SimpleView()
.environment(mainViewModel)
}
}
nikita_cz
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