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)

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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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