如何在 Swift 中为 UIImageView 对象分配一个动作

How to assign an action for UIImageView object in Swift(如何在 Swift 中为 UIImageView 对象分配一个动作)

问题描述

我正在尝试将 UIImageView 分配给用户点击时的操作.

I'm trying to assign an UIImageView to an action when the user taps it.

我知道如何为 UIButton 创建动作，但我如何才能模仿 UIButton 的相同行为，但使用 UIImageView?

I know how to create an action for a UIButton, but how could I mimic the same behavior of a UIButton, but using a UIImageView?

推荐答案

你需要一个 UITapGestureRecognizer.要设置使用这个:

You'll need a UITapGestureRecognizer. To set up use this:

override func viewDidLoad()
{
    super.viewDidLoad()

    let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(imageTapped(tapGestureRecognizer:)))
    imageView.isUserInteractionEnabled = true
    imageView.addGestureRecognizer(tapGestureRecognizer)
}

@objc func imageTapped(tapGestureRecognizer: UITapGestureRecognizer)
{
    let tappedImage = tapGestureRecognizer.view as! UIImageView

    // Your action
}

(您也可以使用 UIButton 并为其分配图像，无需文本，而不仅仅是连接 IBAction)

(You could also use a UIButton and assign an image to it, without text and than simply connect an IBAction)

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