CODEWITHSUNDEEP
iphoneuiimagensdatajavax.imageiowritetofile
simonbs
simonbs

Reputation: 8042

ImageIO error when writing to file

I am trying to save a UIImage but it gives me an error. The UIImage is picked from the UIImagePickerController and is then saved by making an NSData out of it and call writeToFile: on this NSData object. When doing so, I will get an error. The same method stores other images perfectly. The images which I have no problem storing retrieved from a website as a byte array and is then converted to a UIImage and is then saved. It seems that the issue is specific for images from the UIImagePickerController.

Can anybody tell me how I can fix this?

It seems that the images from the UIImagePickerController is saved fine but I still get this error which causes the application to crash:

May 1 10:38:05 Simon-BS-iPhone Diims[619] : ImageIO: JPEG Corrupt JPEG data: premature end of data segment

This is the code used to save the image:

+ (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);
    }
}

It is called like this when an image is selected:

- (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];
}

Upvotes: 0

Views: 789

Answers (1)

Javal Nanda
Javal Nanda

Reputation: 1838

Try changing your code as follows if it works:-

- (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
  }

Upvotes: 1

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