在Swift中从UIImageView中检索UIImage [英] Retrieving UIImage from UIImageView in Swift

问题描述

我找到了解决方案，但它不在Swift中：将UIImageView转换为UIImage

I've found the solution but it is not in Swift: Converting UIImageView to UIImage

我甚至试图通过使用 UnsafeMutablePointed 在Swift中实现它并且没有运气而变得流氓。

I've even went rogue by trying to implement it in Swift by using UnsafeMutablePointed and had no luck.

然而，指针在Swift中通常是不受欢迎的，如果有一个简单的单线解决方案，这将是很好的！

However, pointers are typically frowned upon in Swift and it would be nice if there was a simple one-liner solution to this!

示例代码：

let test1:UIImageView = UIImageView(image: UIImage(named: "test")) 
let test2 = test1.image // This fails with an error: Instance member ‘test1’ cannot be used on type ‘viewController’

推荐答案

我强烈建议您了解Objective-C，因为将帮助您找到如何在iOS中做事（Cocoa-Touch）。

I highly advise you to learn about Objective-C, as that will help you greatly in finding out how to do things in iOS (Cocoa-Touch).

解决方案与Objective-C相同：

The solution is identical to Objective-C:

imageView.image

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