如何使用NSFileManager将UIImage保存到文件?

问题描述

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如何使用NSFileManager将UIImage保存到文件?

How I can save UIImage to file with NSFileManager ?

谢谢

推荐答案

在这里.

这会将UIImage存储到iOS应用的文档目录中.您不需要NSFileManager.

This will store a UIImage into your documents directory of your iOS App.You won't need NSFileManager.

NSArray * paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString * basePath = ([paths count] > 0) ? [paths objectAtIndex:0] : nil;

UIImage * imageToSave = [UIImage imageNamed:@"Icon.png"];
NSData * binaryImageData = UIImagePNGRepresentation(imageToSave);

[binaryImageData writeToFile:[basePath stringByAppendingPathComponent:@"myfile.png"] atomically:YES];

修改:如果您是通过iOS相机存储图像的，则可以查看如何将图像旋转到正确的方向. 在这种情况下，请查看此处.

If you store images form the iOS Camera, you might look at how you can rotate the images to the right orientation. Look here in that case.

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