如何在Swift中从Base64编码的字符串创建图像? [英] How do I create an image from a Base64-encoded string in Swift?

问题描述

Web服务将Base64编码的图像作为字符串回显.如何在Swift项目中解码并显示此编码图像?

A web service echoes a Base64 encoded image as a string. How can one decode and display this encoded image in a Swift project?

具体地说，我想获取一个图像，该图像已经由Web服务提供为Base64格式的字符串，并了解如何在UIImageView中显示它.

Specifically, I would like to take an image, which is already provided by the web service as a string in Base64 format, and understand how to display it in a UIImageView.

到目前为止，我发现的文章描述了不推荐使用的技术，或者用我不熟悉的Objective-C编写.如何接收Base64编码的字符串并将其转换为UIImage?

The articles I have found thus far describe deprecated techniques or are written in Objective-C, which I am not familiar with. How do you take in a Base64-encoded string and convert it to a UIImage?

推荐答案

通过以下操作将base64编码的字符串转换为NSData实例:

Turn your base64 encoded string into an NSData instance by doing something like this:

let encodedImageData = ... get string from your web service ...
let imageData = NSData(base64EncodedString: encodedImageData options: .allZeros)

然后将imageData转换为UIImage:

Then turn the imageData into a UIImage:

let image = UIImage(data: imageData)

然后您可以将图像设置在UIImageView上，例如:

You can then set the image on a UIImageView for example:

imageView.image = image

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