当我将协调器与mvvm-c Rxswift一起使用时如何推送新视图？

Question

我使用MVVM-C（Rxswift），我必须创建homeVC，HomeViewModel和HomeCoordinator当我尝试将HomeCoordinator与HomeViewModel连接以将新的VC推送到Coordinator时，它没有采取任何措施任何人都可以帮我举例说明或解释如何解决此问题吗？

Answer 1

也许这个例子可以帮助您：

//
//  ExampleLiftData.swift
//
//  Created by Daniel Tartaglia on 2/18/20.
//  Copyright © 2020 Daniel Tartaglia. MIT License.
//
import UIKit
import RxSwift
import RxCocoa
import RxEnumKit
import EnumKit

// MARK: - ExamplePresenter
func presentExample(window: UIWindow) {
    let value = PublishSubject<String>()
    let storyboard = UIStoryboard(name: "Example", bundle: nil)
    let controller = storyboard.instantiateInitialViewController() as! ExampleViewController
    let action = controller.install(viewModel: exampleViewModel(value: value.asObservable()))
    _ = action
        .filter(case: ExampleAction.showRequest)
        .flatMap { [unowned controller] _ in
            presentRequest(on: controller, title: "", message: "Add how much?")
        }
        .bind(to: value)
    window.rootViewController = controller
}

enum ExampleAction: CaseAccessible {
    case showRequest
}

// MARK: - ExampleViewModel
func exampleViewModel(value: Observable<String>) -> (ExampleInput) -> (ExampleOutput, Observable<ExampleAction>) {
    return { input in
        let state = value
            .compactMap { Int($0) }
            .scan(0, accumulator: +)
            .startWith(0)
        return (
            ExampleOutput(text: state.map { "\($0)" }),
            input.buttonTapped.map { ExampleAction.showRequest }
        )
    }
}

struct ExampleInput {
    let buttonTapped: Observable<Void>
}

// MARK: - ExampleView
class ExampleViewController: UIViewController, HasViewModel {
    @IBOutlet weak var button: UIButton!
    @IBOutlet weak var label: UILabel!
    var buildOutput: (ExampleInput) -> ExampleOutput = { _ in fatalError() }
    private let disposeBag = DisposeBag()
    override func viewDidLoad() {
        super.viewDidLoad()
        let input = ExampleInput(
            buttonTapped: button.rx.tap.asObservable()
        )
        let output = buildOutput(input)
        output.text.bind(to: label.rx.text).disposed(by: disposeBag)
    }
}

struct ExampleOutput {
    let text: Observable<String>
}

// MARK: - AlertPresenter
func presentRequest(on root: UIViewController, title: String, message: String) -> Observable<String> {
    let result = PublishSubject<String>()
    let controller = UIAlertController(title: title.isEmpty ? nil : title, message: message.isEmpty ? nil : message, preferredStyle: .alert)
    controller.addTextField(configurationHandler: { $0.keyboardType = .numberPad })
    let ok = UIAlertAction(title: "OK", style: .default, handler: { [unowned controller] _ in
        result.onNext(controller.textFields?[0].text ?? "")
        result.onCompleted()
    })
    let cancel = UIAlertAction(title: "Cancel", style: .default, handler: { _ in
        result.onCompleted()
    })
    controller.addAction(ok)
    controller.addAction(cancel)
    root.present(controller, animated: true)
    return result
}

在https://github.com/danielt1263/RxEarthquake了解更多信息