如何将图片保存到 iPhone 照片库? [英] How to save picture to iPhone photo library?

问题描述

我需要做什么才能将我的程序生成的图像(可能来自相机，也可能不是)保存到 iPhone 上的系统照片库?

What do I need to do to save an image my program has generated (possibly from the camera, possibly not) to the system photo library on the iPhone?

推荐答案

你可以使用这个功能:

UIImageWriteToSavedPhotosAlbum(UIImage *image, 
                               id completionTarget, 
                               SEL completionSelector, 
                               void *contextInfo);

如果您想在 UIImage 完成时收到通知，您只需要 completionTarget、completionSelector 和 contextInfo保存，否则可以传入nil.

You only need completionTarget, completionSelector and contextInfo if you want to be notified when the UIImage is done saving, otherwise you can pass in nil.

请参阅有关UIImageWriteToSavedPhotosAlbum().

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