Question

我正在尝试保存UIImage，但它给了我一个错误。 UIImage是从UIImagePickerController中挑选出来的，然后通过使用NSData来保存，并在此writeToFile:对象上调用NSData。这样做时，我会收到错误。相同的方法完美地存储其他图像。我没有问题的图像存储从网站检索为字节数组，然后转换为UIImage然后保存。该问题似乎特定于UIImagePickerController的图像。

有谁能告诉我如何解决这个问题？

似乎来自UIImagePickerController的图片保存得很好，但我仍然遇到导致应用程序崩溃的错误：

5月1日10:38:05 Simon-BS-iPhone Diims [619]：ImageIO：JPEG 损坏的JPEG数据：数据段的过早结束

这是用于保存图像的代码：

+ (void)storeImage:(UIImage *)image name:(NSString *)name
{
    NSString *pathForCache = [self pathForCache];
    NSData *imageData = [NSData dataWithData:UIImageJPEGRepresentation(image, 1.0f)];
    NSString *jpegPath = [pathForCache stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.jpeg", name]];

    NSError *error;
    if ([imageData writeToFile:jpegPath options:NSDataWritingAtomic error:&error] == NO)
    {
        DLog(@"Could not save image: %@", jpegPath);
        DLog(@"%@", error);
    }
}

选择图像时会像这样调用：

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo
{
    // Close controller
    [picker dismissModalViewControllerAnimated:YES];

    // Save image
    self.selectedDevice.image = image;
    [CDeviceManager localUpdateDevice:self.selectedDevice delegate:self];
}

Answer 1

如果有效，请尝试按如下方式更改代码： -

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo
 {
       // Save image self.selectedDevice.image = image;
       [CDeviceManager localUpdateDevice:self.selectedDevice delegate:self];

       // Close controller [picker dismissModalViewControllerAnimated:YES];
       //dismiss after saving the image
  }

写入文件时出现ImageIO错误

1 个答案: