ReactiveCoordinator
ReactiveCoordinator 是一个基于 Coordinator 模式的框架，由 RxSwift 实现。
要求
- iOS 11.0
- Swift 5
安装
CocoaPods
CocoaPods 是 Cocoa 项目的依赖管理器。对于用法和安装说明，请访问其网站。要在 CocoaPods 中使用 CocoaPods 同步到您的 Xcode 项目中，请在您的 Podfile 中将其指定。
pod 'ReactiveCoordinator', '4.0.0'如何使用
在 Coordinator 子类中继承 ReactiveCoordinator
class HolidaysCoordinator: ReactiveCoordinator<Void> {
let rootViewController: UIViewController
init(rootViewController: UIViewController) {
self.rootViewController = rootViewController
}
override func start() -> Observable<Void> {
let viewController = HolidaysViewController()
let viewModel = HolidaysViewModel()
viewController.viewModel = viewModel
rootViewController.navigationController?.pushViewController(viewController, animated: true)
return Observable.empty()
}
}用ReactiveCoordinator替换委托
在提到的协调器中
enum ChooseCountryCoordinationResult {
case country(String)
case cancel
}
class ChooseCountryCoordinator: ReactiveCoordinator<ChooseCountryCoordinationResult> {
private let rootViewController: UIViewController
init(rootViewController: UIViewController) {
self.rootViewController = rootViewController
}
override func start() -> Observable<CoordinationResult> {
let viewController = ChooseCountryViewController()
let navigationController = UINavigationController(rootViewController: viewController)
let viewModel = ChooseCountryViewModel()
viewController.viewModel = viewModel
let country = viewModel.selectedCountry.map { CoordinationResult.country($0) }
let cancel = viewModel.didClose.map { _ in
CoordinationResult.cancel
}
rootViewController.present(navigationController, animated: true, completion: nil)
return Observable.merge(country, cancel)
.take(1)
.do(onNext: { _ in
viewController.dismiss(animated: true, completion: nil)
})
}
}在提出的协调器中
class HolidaysCoordinator: ReactiveCoordinator<Void> {
let rootViewController: UIViewController
init(rootViewController: UIViewController) {
self.rootViewController = rootViewController
}
override func start() -> Observable<Void> {
let viewController = HolidaysViewController()
let viewModel = HolidaysViewModel()
viewController.viewModel = viewModel
viewModel.chooseCountry
.flatMap { [weak self] _ -> Observable<String?> in
guard let `self` = self else { return .empty() }
return self.coordinateToChooseCountry()
}
.filter { $0 != nil }
.map { $0! }
.bind(to: viewModel.selectedCountry)
.disposed(by: disposeBag)
return Observable.never()
}
// MARK: - Coordination
private func coordinateToChooseCountry() -> Observable<String?> {
let chooseCountryCoordinator = ChooseCountryCoordinator(rootViewController: rootViewController)
return coordinate(to: chooseCountryCoordinator)
.map { result in
switch result {
case .country(let country): return country
case .cancel: return nil
}
}
}
}许可
ReactiveCoordinator遵循MIT许可。详情请见LICENSE。