将UIImage转换为NSString(反之亦然) [英] Convert UIImage to NSString (and vice-versa)

问题描述

我需要一种方法来在NSString中转换UIImage，然后再将NSString转换回UIImage.

I need a method to convert a UIImage in a NSString and then convert the NSString back to a UIImage.

谢谢.

推荐答案

for> = IOS 7

for >= IOS 7

- (NSString *)imageToNSString:(UIImage *)image
{
    NSData *imageData = UIImagePNGRepresentation(image);

    return [imageData base64EncodedStringWithOptions:NSDataBase64Encoding64CharacterLineLength];
}

- (UIImage *)stringToUIImage:(NSString *)string
{
    NSData *data = [[NSData alloc]initWithBase64EncodedString:string
                                                  options:NSDataBase64DecodingIgnoreUnknownCharacters];

    return [UIImage imageWithData:data];
}

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