ios - 将 UITapGestureRecognizer 添加到 UITextView 而不阻止 textView 触摸

Question

我怎样才能将 UITapGestureRecognizer 添加到 UITextView，但仍能像正常一样将触摸传递到 UITextView？

目前，只要我向我的 textView 添加自定义手势，它就会阻止 UITextView 默认操作(例如定位光标)的点击。

var tapTerm:UITapGestureRecognizer = UITapGestureRecognizer()

override func viewDidLoad() {
    tapTerm = UITapGestureRecognizer(target: self, action: "tapTextView:")
    textView.addGestureRecognizer(tapTerm)
}

func tapTextView(sender:UITapGestureRecognizer) {
    println("tapped term – but blocking the tap for textView :-/")
…
}

我如何处理点击，但保持任何 textView 行为(如光标定位)不变？

Answer 1

要做到这一点，让您的 View Controller 采用 UIGestureRecognizerDelegate 并覆盖应该同时识别手势识别器方法，例如:

override func viewDidLoad() {
    tapTerm = UITapGestureRecognizer(target: self, action: "tapTextView:")
    tapTerm.delegate = self
    textView.addGestureRecognizer(tapTerm)
}

func gestureRecognizer(gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWithGestureRecognizer otherGestureRecognizer: UIGestureRecognizer) -> Bool {

    return true
}