IOS图片转base64字符串和字符串转回图片

UIImage图片转成base64字符串：

 

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UIImage *_originImage = [UIImage imageNamed:@"full_playlist_hl.png"];   NSData *_data = UIImageJPEGRepresentation(_image, 1.0f);   NSString *_encodedImageStr = [_data base64Encoding];   NSLog(@"===Encoded image:\n%@", _encodedImageStr);

Base64字符串转UIImage图片：

 

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NSData *_decodedImageData   = [[NSData alloc] initWithBase64Encoding:_encodedImageStr];   UIImage *_decodedImage      = [UIImage imageWithData:_decodedImageData];   NSLog(@"===Decoded image size: %@", NSStringFromCGSize(_decodedImage.size));