在swift中为按钮添加手势

Question

我正在尝试向我视图中的现有按钮添加手势(滑动)功能,但我无法弄清楚如何将滑动附加到按钮的区域.

所需的效果是有一个按钮,我可以按下以及滑动以产生不同的结果.到目前为止,我正在实现手势的方式将其应用于我的整个视图而不仅仅是按钮.

我觉得这很简单,但它已经让我逃脱了几天 - 我可能只是在寻找错误的东西.

(我将'@IBOutlet var swipeButton:UIButton!'分配给我的按钮BTW)

代码如下:

class ViewController: UIInputViewController {

@IBOutlet var swipeButton: UIButton!

let swipeRec = UISwipeGestureRecognizer()

override func viewDidLoad() {
    super.viewDidLoad()
    self.loadInterface()

    var swipeButtonDown: UISwipeGestureRecognizer = UISwipeGestureRecognizer(target: self, action: "ButtonDown")
    swipeButtonDown.direction = UISwipeGestureRecognizerDirection.Down
    self.view.addGestureRecognizer(swipeButtonDown)
}

@IBAction func buttonPressed(sender: UIButton) {
    var proxy = textDocumentProxy as UITextDocumentProxy
    proxy.insertText("button")
}
func buttonDown(){
    var proxy = textDocumentProxy as UITextDocumentProxy
    proxy.insertText("swipe")
}

}

Answer 1

如果你想将swipeGesture添加到Button中,那么就这样做:

self.yourButton.addGestureRecognizer(swipeButtonDown)

并且你发送它的选择器有一个错误应该是:

var swipeButtonDown: UISwipeGestureRecognizer = UISwipeGestureRecognizer(target: self, action: "buttonDown")

改变ButtonDown以buttonDown