RxSwift 初探1

通过 Cocoapods 导入

pod 'RxSwift', '6.5.0'
pod 'RxCocoa', '6.5.0'

使用三步曲

• 注册监听
• 订阅
• 销毁

RXSwift 实际应用

• KVO

       
func  setupKVO(){
//响应序列 
self.person.rx.observeWeakly(String.self, "name")
        .subscribe { value in
            print(value as Any)
        }
        .disposed(by: disposeBag)
    
}

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
    print("来了")
    person.name = "\(person.name) 6"
}

因为使用了kvo监听的原理，所以类中的属性必须使用@objc dynamic 来修饰 ，dynamic 是开启运行时机制。

class LGPerson: NSObject {
   @objc dynamic var name: String = "Bill"
}

• button

func setupButton(){
    button.rx.controlEvent(.touchUpInside)
        .subscribe { _ in
            print("点击事件")
        }
        .disposed(by: disposeBag)
}

• textfiled

func setupTextField(){
    textFiled.rx.text.orEmpty.changed
        .subscribe { text in
            print(text)
        }
        .disposed(by: disposeBag)
}

• scrollView

func setupScrollerView() {
    scrollView.rx.contentOffset
            .subscribe { [weak self]content in
                self?.view.backgroundColor = UIColor.init(red: content.y/255*0.8, green: content.y/255*0.6, blue: content.y/255*0.3, alpha: 1)
            }
            .disposed(by: disposeBag)

    }

• 手势

func setupGestureRecongizer(){
   let tap = UITapGestureRecognizer()
   self.view.addGestureRecognizer(tap)
   self.view.isUserInteractionEnabled = true

   tap.rx.event
       .subscribe { tap in
           print(tap.view)
       }
       .disposed(by: disposeBag)
   
}

• 通知

func setupNotification(){
    // 监听键盘弹出通知
    NotificationCenter.default.rx.notification(UIResponder.keyboardWillShowNotification)
            .subscribe { noti in
                print("键盘弹起")
            }
            .disposed(by: disposeBag)
}

• timer定时器

func setupTimer(){
    var timer: Observable<Int> = Observable<Int>.interval(.seconds(1), scheduler: MainScheduler.instance)
        timer.subscribe { num in
            print(num)
        }
        .disposed(by: disposeBag)
}

• 网络请求

func setupNetwork() {
    let url = URL(string: "https://www.baidu.com")
    URLSession.shared.rx.response(request: URLRequest(url: url!))
        .subscribe { response, data in
            print(response)
        }
        .disposed(by: disposeBag)
}