SwiftUI-MVVM-Example

A basic example of reactive View-ViewModel binding (MVVM Architecture) in SwiftUI using ObservableObject, @ObservedObject and @Published

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Basic steps:

1. Ensure that your View Model class conforms to ObservableObject

    class ViewModel: ObservableObject {...}

2. Ensure that the bindable property in your View Model class is marked as @Published

    class ViewModel: ObservableObject {

        @Published var model: Model = ...

    }

3. Ensure that the viewModel instance is marked as @ObservedObject

    struct ContentView: View {

        @ObservedObject var viewModel = ViewModel()

        var body: some View {
            ...
        }
    }

4. Finally, use the property to set up the bind between the View and View Model

    struct ContentView: View {

        @ObservedObject var viewModel = ViewModel()

        var body: some View {
            Text("\(viewModel.model.property)")
        }
    }