- vm data -> UI
viewModel.signingIn
.bind(to: signingUpOulet.rx.isAnimating)
.disposed(by: disposeBag)
viewModel.signupEnabled
.subscribe(onNext: { [weak self] valid in
self?.signupOutlet.isEnabled = valid
self?.signupOutlet.alpha = valid ? 1.0 : 0.5
})
.disposed(by: disposeBag)
// 自定義rx
viewModel.validatedUsername
.bind(to: usernameValidationOutlet.rx.validationResult)
.disposed(by: disposeBag)
extension Reactive where Base: UILabel {
var validationResult: Binder<ValidationResult> {
return Binder(base) { label, result in
label.textColor = result.textColor
label.text = result.description
}
}
}
// 手勢
let tapBackground = UITapGestureRecognizer()
tapBackground.rx.event
.subscribe(onNext: { [weak self] _ in
self?.view.endEditing(true)
})
.disposed(by: disposeBag)
view.addGestureRecognizer(tapBackground)
// ui -》 vm 操作處理
usernameOutlet.rx.text.orEmpty.asObservable()
.flatMapLatest { username in
return validationService.validateUsername(username)
.observeOn(MainScheduler.instance)
.catchErrorJustReturn(.failed(message: "Error contacting server"))
}
.share(replay: 1)
- observable 類型贯钩，可以被觀察
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