RxSwift-article-1

RxSwift-article-1.swift

class MessageViewModel {
    let messageSubject = BehaviorSubject<String>(value: "Greetings")
    
    func receiveMessage(message: String) {
        messageSubject.onNext(message)
    }
}

class MessageViewController: UIViewController {
    
    @IBOutlet weak var messageLabel: UILabel!
    private let disposeBag = DisposeBag()
    private let messageViewModel = MessageViewModel()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        messageViewModel.messageSubject.subscribeNext { [unowned self] message in
            self.messageLabel.text = message
        }.addDisposableTo(disposeBag)
    }
}