RxSwift 手势

之前用RxSwift的手势是这样的：

1. 创建一个UITapGestureRecognizer
2. 给View加入手势识别
3. 用Rx的方式监听手势事件

let myView: UIView = UIView()

let tapGesture = UITapGestureRecognizer()
myView.addGestureRecognizer(tapGesture)

tapGesture.rx.event
    .debug("Tap")
    .subscribe()
    .disposed(by: disposeBag)

当遇到RxGesture后，一切都变了下面这样

• 点击

let myView: UIView = UIView()

myView.rx.tapGesture()
    .when(.recognized)
    .subscribe()
    .disposed(by: disposeBag)

使用when过滤手势的状态UIGestureRecognizerState

• 双击

myView.rx.tapGesture() { gesture, _ in
        gesture.numberOfTapsRequired = 2
    }
    .when(.recognized)
    .subscribe(onNext: { _ in
        print("Double Click")
    })
    .disposed(by: disposeBag)

• 长按

myView.rx.longPressGesture()
    .when(.began)
    .subscribe(onNext: { _ in
        print("Long Press")
    })
    .disposed(by: disposeBag)

• 滑动

myView.rx.swipeGesture(.up, .down)
    .when(.recognized)
    .subscribe(onNext: {
        print("Swipe \($0.direction.rawValue)")
    })
    .disposed(by: disposeBag)

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资料