methodInvoked Example

RxViewController.swift

import RxCocoa
import RxSwift

public extension Reactive where Base: UIViewController {
  public var viewDidLoad: ControlEvent<Void> {
    let source = self.methodInvoked(#selector(Base.viewDidLoad)).map { _ in }
    return ControlEvent(events: source)
  }

  public var viewWillAppear: ControlEvent<Bool> {
    let source = self.methodInvoked(#selector(Base.viewWillAppear)).map { $0.first as? Bool ?? false }
    return ControlEvent(events: source)
  }
  public var viewDidAppear: ControlEvent<Bool> {
    let source = self.methodInvoked(#selector(Base.viewDidAppear)).map { $0.first as? Bool ?? false }
    return ControlEvent(events: source)
  }

  public var viewWillDisappear: ControlEvent<Bool> {
    let source = self.methodInvoked(#selector(Base.viewWillDisappear)).map { $0.first as? Bool ?? false }
    return ControlEvent(events: source)
  }
  public var viewDidDisappear: ControlEvent<Bool> {
    let source = self.methodInvoked(#selector(Base.viewDidDisappear)).map { $0.first as? Bool ?? false }
    return ControlEvent(events: source)
  }
}