如何将 NSData 编码为 base64?(iPhone/iPad)

问题描述

我正在尝试将 UIImage 添加到 HTML 电子邮件，但是我遇到了问题.我看了很多其他帖子，他们都说我需要将我的 NSData 转换为 base64，但是他们都建议的方法似乎不再存在(除非我遗漏了什么?！).

I'm trying to add a UIImage to an HTML email, however I'm having an issue. I have looked around at lots of other posts and they all state that I need to convert my NSData to base64, however the method they all suggest doesn't seem to exist anymore (unless I'm missing something?!).

这是我目前的代码:

UIImage *mapImage = [mapViewController convertMapToImage];
NSData *imageData = [NSData dataWithData:UIImagePNGRepresentation(mapImage)];
NSString *base64String = // [imageData base64EncodedString];   --- this method isn't recognised

有人可以帮帮我吗?

推荐答案

您尝试使用的方法没有默认框架.您可以将 NSData 类别 添加到您的项目中.

The method you are trying to use doesn come with default framework. You can add the NSData category to your project.

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