Cannot receive event with custom DelegateProxy and Protocol

Question

I try to migrate delegate of DifficultyViewDelegate to observable. This is my DifficultyViewDelegate :

@objc protocol DifficultyViewDelegate: class {
  func leve         


        

Answer 1

Try use PublishSubject:

DifficultyView:

class DifficultyView: UIView {
    var levelDidIncrease = PublishSubject()
    var levelDidDecrease = PublishSubject()

    @IBAction func decreaseLevel(_ sender: Any) {
        levelDidDecrease.onNext()
    }

    @IBAction func increaseLevel(_ sender: Any) {
        levelDidIncrease.onNext()
   }
}

And then:

var difficultyView = DifficultyView()

difficultyView.levelDidDecrease.asObservable()
    .subscribe(onNext: {
        print("did decrease")
    })
    .addDisposableTo(disposeBag)


difficultyView.decreaseLevel(theSender) // <- THIS line performs the side effect