iOS UIImage图片Base64字符串互转

//     UIImage图片转成Base64字符串：  
       UIImage *originImage = image;
       NSData *data = UIImageJPEGRepresentation(originImage, 1.0f);
       NSString *encodedImageStr = [data base64EncodedStringWithOptions:NSDataBase64Encoding64CharacterLineLength];
       NSLog(@"encodedImageStr==%@",encodedImageStr);
        

        
        
//     Base64字符串转UIImage图片：
       NSData *decodedImageData = [[NSData alloc]initWithBase64EncodedString:encodedImageStr options:NSDataBase64DecodingIgnoreUnknownCharacters];
       UIImage *decodedImage = [UIImage imageWithData:decodedImageData];
       UIImageView *imgView = [[UIImageView alloc] initWithFrame:CGRectMake(60, 100, 200, 400)];
       [imgView setImage:decodedImage];
       [self.view addSubview:imgView];
       NSLog(@"decodedImage==%@",decodedImageData);