UIGestureRecognizer用于单个视图。我同意文件是参差不齐的。UIGestureRecognizer只有一个视图属性，会泄露信息:

视图 手势识别器附加到的视图。(只读) @property(非原子，只读)UIView *view 你附加(或添加)一个手势识别器到一个UIView对象 使用addGestureRecognizer: 方法。

如果你有固定的视角，我建议你这样做

[self.view1 addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapTapTap:)]];
[self.view2 addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapTapTap:)]];

这样可以减少多个不同的无用变量

每次你添加一个指向相同func的手势识别器时，重写(重新创建)你的gesturerecogize。 在下面的情况下，它是有效的。我正在使用IBOutletCollection

斯威夫特2:

@IBOutlet var topicView: [UIView]!

override func viewDidLoad() {
        for view in self.topicView as [UIView] {
        view.addGestureRecognizer(UITapGestureRecognizer(target: self, action: "viewClicked:"))
    }
}

func viewClicked(recognizer: UITapGestureRecognizer) {
    print("tap")
}

您可以在视图上创建一个通用扩展来轻松地添加手势识别器。 这只是一个例子，但它可以是这样的

extension UIView {

    func setGestureRecognizer<Gesture: UIGestureRecognizer>(of type: Gesture.Type, target: Any, actionSelector: Selector, swipeDirection: UISwipeGestureRecognizer.Direction? = nil, numOfTaps: Int = 1) {
    let getRecognizer = type.init(target: target, action: actionSelector)

    switch getRecognizer {
    case let swipeGesture as UISwipeGestureRecognizer:
        guard let direction = swipeDirection else { return }
        swipeGesture.direction = direction
        self.addGestureRecognizer(swipeGesture)
    case let tapGesture as UITapGestureRecognizer:
        tapGesture.numberOfTapsRequired = numOfTaps
        self.addGestureRecognizer(tapGesture)
    default:
        self.addGestureRecognizer(getRecognizer)
    }
  }

}

要在视图上添加一个2点识别器，你只需调用:

let actionSelector = #selector(actionToExecute)
view.setGestureRecognizer(of: UITapGestureRecognizer.self, target: self, actionSelector: actionSelector, numOfTaps: 2)

您还可以轻松地添加一个滑动识别器

view.setGestureRecognizer(of: UISwipeGestureRecognizer.self, target: self, actionSelector: actionSelector, swipeDirection: .down)

等等。 只需要记住，目标必须链接到选择器。

好吧，如果有人不想代码添加手势视图的多个按钮像kwalker已经回答上面，并想通过接口生成器这样做，这可能会帮助你。

1)你可以从对象库中添加长按手势识别器，就像你添加其他对象，如UIButtons和UILabels。

最初我只用了一个

2)设置引用出口到UIButton和发送动作与文件的所有者。

注意:如果你有多个UIButton或任何其他对象，你将需要单独的手势识别器为他们每一个。详情请参考我的这个问题。长按手势识别器上的UIButton标签错误

你可以用这段代码我的视图，也就是xib中的imageviews。

- (void)viewDidLoad
{
    firstIV.tag = 501;
    secondIV.tag = 502;
    thirdIV.tag = 503;
    forthIV.tag = 504;

    [self addTapGesturetoImageView: firstIV];
    [self addTapGesturetoImageView: secondIV];
    [self addTapGesturetoImageView: thirdIV];
    [self addTapGesturetoImageView: forthIV];
}

-(void)addTapGesturetoImageView:(UIImageView*)iv
{
    iv.userInteractionEnabled = YES;
    UITapGestureRecognizer * textfielBGIVTapGasture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(textfielBGIVTapped:)];
    textfielBGIVTapGasture.numberOfTapsRequired = 1;
    [iv addGestureRecognizer:textfielBGIVTapGasture];
}

- (void)textfielBGIVTapped:(UITapGestureRecognizer *)recognizer {
    int tag = recognizer.view.tag-500;
    switch (tag) {
        case 1:
        {
            //firstIV tapped;
            break;
        }
        case 2:
        {
            //secondIV tapped;
            break;
        }
        case 3:
        {
            //thirdIV tapped;
            break;
        }
        case 4:
        {
            //forthIV tapped;
            break;
        }
        default: {
            break;
        }
    }
}