FlowDirection

Latest	0.0.5
Homepage	https://github.com/gre4ixin/FlowDirection
License	MIT
Platforms	ios 9.1
Dependencies	RxSwift, RxCocoa
Frameworks	UIKit
Authors	Pavel

Implementation pattern coordinator with RxSwift

📲 Installation

Cocoapods

pod 'FlowDirection'

pod install

👨🏼‍💻 How to use?

In app delegate setup RxCoordinator and RxTabBarController

import RxSwift
import FlowDirection
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    let disposeBag = DisposeBag()
    var window: UIWindow?
    var coordinator: RxCoordinator?
    let bag = DisposeBag()
    let factory: FlowFactory = ViewControllerFactory()

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {

        let tab = RxTabBarController(flows: [ViewControllerType.tabOne, ViewControllerType.tabTwo])
        let nav = UINavigationController(rootViewController: tab)
        coordinator = RxCoordinator(navigationController: nav, tabBarController: tab, factory: factory)
        // optional
        coordinator?.rx.willNavigate.subscribe(onNext: { (direction) in
            if let flow = direction.1 {
                print("direction -> (direction.0) flow -> (flow)")
            } else {
                print("direction -> (direction.0)")
            }
        }).disposed(by: bag)
        window = UIWindow(frame: UIScreen.main.bounds)
        window?.rootViewController = nav
        window?.makeKeyAndVisible()

        return true
    }
}

Create new file ViewControllerFactory (you can you other name), my factory look like this 👇🏼

enum ViewControllerType: Flow {

    case first
    case second

    case tabOne
    case tabTwo

    var index: Int? {
        switch self {
        case .tabOne:
            return 0
        case .tabTwo:
            return 1
        default:
            return nil
        }
    }

    var flow: UIViewController? {
        switch self {
        case .tabOne:
            return UINavigationController(rootViewController: ViewController())
        case .tabTwo:
            return UINavigationController(rootViewController: SecondViewController())
        default:
            return nil
        }
    }
}

class ViewControllerFactory: FlowFactory {
    func makeViewController(with flow: Flow) -> UIViewController {
        guard let flow = flow as? ViewControllerType else {
            fatalError()
        }
        switch flow {
        case .first:
            return ViewController()
        case .second:
            return SecondViewController()
        default:
            return ViewController()
        }
    }
}

In ViewController you have to inheritance from RxFlowViewController

import RxSwift
import RxCocoa
import FlowDirection

class ViewController: RxFlowViewController {

  func bind() {}
        button.rx.tap.map { (_) -> (DirectionRoute, [RxCoordinatorMiddleware]?) in
            return (DirectionRoute.present(flow: ViewControllerType.second, animated: true), .none)
        }
            .bind(to: rxcoordinator!.rx.route)
            .disposed(by: bag)
    }

}

And that’s all

Middleware

You can use middleware for processing your navigation command, it’s very simple too. Create new file, create class

class DeniedMiddleware: RxCoordinatorMiddleware {
    func perfom(_ route: DirectionRoute) -> DirectionRoute {
        switch route {
        case .push(flow: _, animated: _, hideTab: _):
            return .present(flow: ViewControllerType.second, animated: true)
        default:
            return .push(flow: ViewControllerType.first, animated: true, hideTab: false)
        }
    }
}

Now, you have to add this middleware to DirectionRoute, return to your ViewController and change code in map function.

button.rx.tap.map { (_) -> (DirectionRoute, [RxCoordinatorMiddleware]?) in
    let mid = DeniedMiddleware()
    return (DirectionRoute.present(flow: ViewControllerType.second, animated: true), [mid])
}.bind(to: rxcoordinator!.rx.route)

Latest podspec

{
    "name": "FlowDirection",
    "version": "0.0.5",
    "summary": "App router",
    "description": "coordinate navigation",
    "homepage": "https://github.com/gre4ixin/FlowDirection",
    "license": {
        "type": "MIT",
        "file": "LICENSE"
    },
    "authors": {
        "Pavel": "[email protected]"
    },
    "platforms": {
        "ios": "9.1"
    },
    "source": {
        "git": "https://github.com/gre4ixin/FlowDirection.git",
        "tag": "0.0.5"
    },
    "source_files": "Source/*.swift",
    "frameworks": "UIKit",
    "dependencies": {
        "RxSwift": [
            "~> 4.4.1"
        ],
        "RxCocoa": [
            "~> 4.4.1"
        ]
    },
    "swift_version": "4.2"
}

Tue, 05 Mar 2019 11:17:24 +0000