Created
July 26, 2021 08:22
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SwiftUI + Kotlin Flow
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| struct ExampleView: View { | |
| let viewModel: AuthViewModel = AuthViewModel() | |
| var body: some View { | |
| ObservingView(statePublisher: asPublisher(viewModel.viewStates()), | |
| actionPublisher: asPublisher(viewModel.viewActions()), | |
| content: { state, action in | |
| // your view here | |
| }) | |
| } |
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| private class ObservableModel<State, Action>: ObservableObject { | |
| @Published var state: State? | |
| @Published var action: Action? | |
| init(statePublisher: AnyPublisher<State, Never>, | |
| actionPublisher: AnyPublisher<Action, Never>) { | |
| statePublisher | |
| .compactMap { $0 } | |
| .receive(on: DispatchQueue.main) | |
| .assign(to: &$state) | |
| actionPublisher | |
| .compactMap { $0 } | |
| .receive(on: DispatchQueue.main) | |
| .assign(to: &$action) | |
| } | |
| } |
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| public struct ObservingView<State, Action, Content>: View where Content: View { | |
| @ObservedObject private var model: ObservableModel<State, Action> | |
| private let content: (State, Action?) -> Content | |
| public init(statePublisher: AnyPublisher<State, Never>, | |
| actionPublisher: AnyPublisher<Action, Never>, | |
| @ViewBuilder content: @escaping (State, Action?) -> Content) { | |
| self.model = ObservableModel(statePublisher: statePublisher, | |
| actionPublisher: actionPublisher) | |
| self.content = content | |
| } | |
| public var body: some View { | |
| let view: AnyView | |
| if let state = self.model.state { | |
| view = AnyView(content(state, model.action)) | |
| } else { | |
| view = AnyView(Text("Render error")) | |
| } | |
| return view | |
| } | |
| } |
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