Article_009 https://nalexn.github.io/uikit-switfui/

Article_009_UI_10.swift

class HomeViewModel: ObservableObject {

    @Published var isLoadingData = false
    func doSomething() { ... }
}

class HomeViewController: UIViewController {
    
    let loadingIndicator: UIActivityIndicatorView!
    let viewModel = HomeViewModel()
    let disposeBag = DisposeBag()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        viewModel
            .$isLoadingData // obtaining Publisher
            .asObservable() // converting to Observable
            .bind(to: loadingIndicator.rx.isAnimating) // RxCocoa binding
            .disposed(by: disposeBag)
    }
    
    @IBAction func handleButtonPressed() {
        viewModel.doSomething()
    }
}