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134 changes: 134 additions & 0 deletions
134
...es/ComposableNavigation-Examples/ShowCases/Advanced/AlertPlayground/AlertPlayground.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,134 @@ | ||
| import UIKit | ||
| import SwiftUI | ||
| import ComposableNavigation | ||
| import ComposableArchitecture | ||
|
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| struct AlertPlayground { | ||
|
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| // MARK: TCA | ||
|
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| enum ModalScreen: Hashable { | ||
| case resetAlert | ||
| case actionSheet | ||
| } | ||
|
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| struct State: Equatable { | ||
| static let initialCount = 5 | ||
|
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| var counter = Counter.State(id: 0, count: Self.initialCount) | ||
| var alertNavigation = ModalNavigation<ModalScreen>.State() | ||
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| var isResetDisabled: Bool { | ||
| counter.count == Self.initialCount | ||
| } | ||
| } | ||
|
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| enum Action: Equatable { | ||
| case counter(Counter.Action) | ||
| case resetCounter | ||
| case alertNavigation(ModalNavigation<ModalScreen>.Action) | ||
| } | ||
|
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| struct Environment {} | ||
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| private static let privateReducer = Reducer<State, Action, Environment> { state, action, environment in | ||
| switch action { | ||
| case .resetCounter: | ||
| state.counter.count = State.initialCount | ||
| default: | ||
| break | ||
| } | ||
| return .none | ||
| } | ||
|
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| static let reducer: Reducer<State, Action, Environment> = Reducer.combine([ | ||
| ModalNavigation<ModalScreen>.reducer() | ||
| .pullback( | ||
| state: \.alertNavigation, | ||
| action: /Action.alertNavigation, | ||
| environment: { _ in () } | ||
| ), | ||
| Counter.reducer | ||
| .pullback( | ||
| state: \.counter, | ||
| action: /Action.counter, | ||
| environment: { _ in .init() } | ||
| ), | ||
| privateReducer | ||
| ]) | ||
|
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| // MARK: View creation | ||
|
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| struct ModalViewProvider: ViewProviding { | ||
| let store: Store<State, Action> | ||
|
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| func makePresentable(for navigationItem: ModalScreen) -> Presentable { | ||
| let viewStore = ViewStore(store) | ||
| switch navigationItem { | ||
| case .resetAlert: | ||
| let alert = UIAlertController( | ||
| title: "Warning", | ||
| message: "Reset counter?", | ||
| preferredStyle: .alert | ||
| ) | ||
| alert.addAction(.init(title: "Cancel", style: .cancel, handler: { _ in | ||
| viewStore.send(.alertNavigation(.dismiss)) | ||
| })) | ||
| alert.addAction(.init(title: "Reset", style: .destructive, handler: { _ in | ||
| viewStore.send(.alertNavigation(.dismiss)) | ||
| viewStore.send(.resetCounter) | ||
| })) | ||
| return alert | ||
| case .actionSheet: | ||
| let alert = UIAlertController( | ||
| title: "Choose from following options:", | ||
| message: nil, | ||
| preferredStyle: .actionSheet | ||
| ) | ||
| alert.addAction(.init(title: "Cancel", style: .cancel, handler: { _ in | ||
| viewStore.send(.alertNavigation(.dismiss)) | ||
| })) | ||
| alert.addAction(.init(title: "Up", style: .default, handler: { _ in | ||
| viewStore.send(.alertNavigation(.dismiss)) | ||
| viewStore.send(.counter(.up)) | ||
| })) | ||
| alert.addAction(.init(title: "Down", style: .default, handler: { _ in | ||
| viewStore.send(.alertNavigation(.dismiss)) | ||
| viewStore.send(.counter(.down)) | ||
| })) | ||
| let resetAction = UIAlertAction(title: "Reset", style: .destructive, handler: { _ in | ||
| viewStore.send(.alertNavigation(.dismiss)) | ||
| viewStore.send(.alertNavigation(.presentFullScreen(.resetAlert))) | ||
| }) | ||
| resetAction.isEnabled = !viewStore.isResetDisabled | ||
| alert.addAction(resetAction) | ||
| return alert | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| struct AlertPlaygroundView: View, Presentable { | ||
| let store: Store<AlertPlayground.State, AlertPlayground.Action> | ||
|
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| var body: some View { | ||
| WithViewStore(store) { viewStore in | ||
| VStack { | ||
| Text("Count: \(viewStore.counter.count)") | ||
| .font(.largeTitle) | ||
| .padding() | ||
|
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| Button("Options") { | ||
| viewStore.send(.alertNavigation(.presentFullScreen(.actionSheet))) | ||
| } | ||
| .padding() | ||
|
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| Button("Reset") { | ||
| viewStore.send(.alertNavigation(.presentFullScreen(.resetAlert))) | ||
| } | ||
| .disabled(viewStore.isResetDisabled) | ||
| .padding() | ||
| } | ||
| } | ||
| } | ||
| } |
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