Rxswift: why ?

[CrazyCoderShi]

    @IBOutlet weak var phoneNumber: UITextField!
    @IBOutlet weak var password: UITextField!
    override func viewDidLoad() {
        super.viewDidLoad()

        let viewModel = ViewModel(phoneNumberText: phoneNumber.rx.text.asDriver(),
                                  passwordText: password.rx.text.asDriver())
     }

When i decleared viewModel, get error: 'inout UITextField' does not conform to protocol 'ReactiveCompatible'
sorry for my bad English😱

[sergdort]

Hi, @CrazyCoderShi
What is the type of passwordText in your ViewModel?
Is it Driver<String> ?

[CrazyCoderShi]

@sergdort yes

[sergdort]

But the type of rx.text is ControlProperty<String?>
https://github.com/ReactiveX/RxSwift/blob/master/RxCocoa/iOS/UITextView%2BRx.swift#L31

[sergdort]

I believe you need to do

.map { $0 ?? "" } // Observable<String>

[kzaher]

There is also

let viewModel = ViewModel(phoneNumberText: phoneNumber.rx.text.orEmpty.asDriver(),
                                  passwordText: password.rx.text.orEmpty.asDriver())

that has that .map { $0 ?? "" } internally.

[CrazyCoderShi]

Thx @kzaher, it works.

[xuech]

@kzaher, it works for me , haha ,nice!