Swift：Gesture Recognizer无法识别的选择器发送到实例 [英] Swift: Gesture Recognizer unrecognized selector sent to instance

问题描述

我正在尝试在XCode中制作手势识别器，以便我可以点击我的MKMapView并执行一些操作。但是，每当我长按地图时，我都会收到无法识别的选择器发送到实例。

I'm attempting to make a gesture recognizer in XCode, so that I can tap on my MKMapView and preform some actions. However, I am receiving the "unrecognized selector sent to instance" whenever I long-press the map.

这是我在viewDidLoad中的代码：

Here is my code in viewDidLoad:

let gestureRecognizer = UILongPressGestureRecognizer(target: self, action: "handleTap:");
self.mapViewPlace.addGestureRecognizer(gestureRecognizer);

以下是此功能：

func handleTap(gestureReconizer: UILongPressGestureRecognizer) {

}

任何想法？

推荐答案

请给予Neo信用。您需要将语法更改为：

Please, give Neo credit. You need to change your syntax to this:

let gestureRecognizer = UILongPressGestureRecognizer(target: self, action: #selector(handleTap)

附注：对于Swift，你的代码行不需要分号。

Side note: For Swift you do not need semi-colons the end your code lines.

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