以下是Swift版本:

// MARK: Gesture Extensions
extension UIView {

    func addTapGesture(#tapNumber: Int, target: AnyObject, action: Selector) {
        let tap = UITapGestureRecognizer (target: target, action: action)
        tap.numberOfTapsRequired = tapNumber
        addGestureRecognizer(tap)
        userInteractionEnabled = true
    }

    func addTapGesture(#tapNumber: Int, action: ((UITapGestureRecognizer)->())?) {
        let tap = BlockTap (tapCount: tapNumber, fingerCount: 1, action: action)
        addGestureRecognizer(tap)
        userInteractionEnabled = true
    }
}

斯威夫特5.3

基于闭包的UIGestureRecognizer解决方案

final class BindableGestureRecognizer: UITapGestureRecognizer {
    private var action: () -> Void

    init(action: @escaping () -> Void) {
        self.action = action
        super.init(target: nil, action: nil)
        self.addTarget(self, action: #selector(execute))
    }

    @objc private func execute() {
        action()
    }
}

public extension UIView {
    /// A discrete gesture recognizer that interprets single or multiple taps.
    /// - Parameters:
    ///   - tapNumber: The number of taps necessary for gesture recognition.
    ///   - closure: A selector that identifies the method implemented by the target to handle the gesture recognized by the receiver. The action selector must conform to the signature described in the class overview. NULL is not a valid value.
    func addTapGesture(tapNumber: Int = 1, _ closure: (() -> Void)?) {
        guard let closure = closure else { return }

        let tap = BindableGestureRecognizer(action: closure)
        tap.numberOfTapsRequired = tapNumber
        addGestureRecognizer(tap)

        isUserInteractionEnabled = true
    }
}

使用:

view.addTapGesture { [weak self] in
    self?.view.backgroundColor = .red
}

简单实用的扩展:

extension UIView {
private struct OnClickHolder {
    static var _closure:()->() = {}
}

private var onClickClosure: () -> () {
    get { return OnClickHolder._closure }
    set { OnClickHolder._closure = newValue }
}

func onTap(closure: @escaping ()->()) {
    self.onClickClosure = closure
    
    isUserInteractionEnabled = true
    let tap = UITapGestureRecognizer(target: self, action: #selector(onClickAction))
    addGestureRecognizer(tap)
}

@objc private func onClickAction() {
    onClickClosure()
}

}

用法:

    override func viewDidLoad() {
    super.viewDidLoad()
    let view = UIView(frame: .init(x: 0, y: 0, width: 80, height: 50))
    view.backgroundColor  = .red
    view.onTap {
        print("View Tapped")
    }
}

你们为什么不试试ssevenlistener呢?

您不需要创建任何手势识别器，并将您的逻辑分离到另一个方法。ssevenlistener支持在视图上设置侦听器块，以侦听单个点击手势，双击手势和N-tap手势，如果你喜欢，和长按手势。设置一个点击手势监听器是这样的:

[view ss_addTapViewEventListener:^(UITapGestureRecognizer *recognizer){…} numberOfTapsRequired: 1);

objective - c:

UIControl *headerView = [[UIControl alloc] initWithFrame:CGRectMake(0, 0, tableView.bounds.size.width, nextY)];
[headerView addTarget:self action:@selector(myEvent:) forControlEvents:UIControlEventTouchDown];

迅速:

let headerView = UIControl(frame: CGRect(x: 0, y: 0, width: tableView.bounds.size.width, height: nextY))
headerView.addTarget(self, action: #selector(myEvent(_:)), for: .touchDown)

问题是:

我如何添加一个触摸事件到一个UIView?

它并不是在请求一个点击事件。

特别是OP想要实现UIControlEventTouchDown

切换UIView到UIControl是正确的答案，因为手势识别器不知道。touchdown。touchupinside，。touchupoutside等等。

此外，UIControl继承自UIView，所以你不会失去任何功能。

如果你想要的只是轻敲一下，那么你可以使用手势识别器。但如果你想要更好的控制，就像这个问题要求的，你需要UIControl。

https://developer.apple.com/documentation/uikit/uicontrol?language=objc https://developer.apple.com/documentation/uikit/uigesturerecognizer?language=objc

另一种方法是向视图添加一个透明按钮

UIButton *b = [UIButton buttonWithType:UIButtonTypeCustom];
b.frame = CGRectMake(0, 0, headerView.width, headerView.height);
[headerView addSubview:b];
[b addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchDown];

然后，handle click:

- (void)buttonClicked:(id)sender
{}