IKSaveOptions saving images error when app is sandboxed

Good Morning!

I save images in my app using ImageKit IKSaveOptions to present a save panel accessory view that deals with different image settings.


If in the save panel the user select an already existing file, appears the alert box "“XXX” already exists. Do you want to replace it?".
If the user press the "Replace" button, the old file should be replaced (overwritten) by the new one

It works fine when the app is not sandboxed.
however, I started to use the Lion's Sandbox with the "Read/Write Access" entitlement. The old file can not be replaced correctly. The old file is kept and a new file is created. and the new file name is something like 'XXX.jpg.sb-g5Evhc'. I think it a kind of sandbox format file. It is not what I want. I just want to replace the old image file with the new one.

I tried it again: the old image file can be correctly replaced if the app is not sandboxed, but it can not be replaced if the app is sandboxed.

Please help! Any help will be appriciated.



I used the sample code of 'IKImageViewDemo' which can be found on webpage
http://developer.apple.com/library/.../DTS10004049-Controller_m-DontLinkElementID_4
and the code is like below:
///////////////////////////////////////////////////////////////////////////////////////////////

Code:

- (void)savePanelDidEnd: (NSSavePanel *)sheet

             returnCode: (int)returnCode

            contextInfo: (void *)contextInfo

{

    // save the image

    

    if (returnCode == NSOKButton)

    {

        NSString * path = [sheet filename];

        NSString * newUTType = [_saveOptions imageUTType];

        CGImageRef image;

    

        // get the current image from the image view

        image = [_imageView image];

        

        if (image)

        {

            // use ImageIO to save the image in the user specified format

            NSURL *               url = [NSURL fileURLWithPath: path];

            CGImageDestinationRef dest = CGImageDestinationCreateWithURL((CFURLRef)url, (CFStringRef)newUTType, 1, NULL);

            

            if (dest)

            {

                CGImageDestinationAddImage(dest, image, (CFDictionaryRef)[_saveOptions imageProperties]);

                CGImageDestinationFinalize(dest);

                CFRelease(dest);

            }

        } else

        {

            NSLog(@"*** saveImageToPath - no image");

        }

    }

}

 

// ---------------------------------------------------------------------------------------------------------------------

- (IBAction)saveImage: (id)sender

{

    // present a save panel - use IKSaveOptions to append the ImageKit accessory view to the save panel

    NSSavePanel * savePanel = [NSSavePanel savePanel];

    

    _saveOptions = [[IKSaveOptions alloc] initWithImageProperties: _imageProperties

                                                      imageUTType: _imageUTType];

    

    [_saveOptions addSaveOptionsAccessoryViewToSavePanel: savePanel];

    

    NSString * fileName = [[_window representedFilename] lastPathComponent];

    

    [savePanel beginSheetForDirectory: NULL

                                 file: fileName

                       modalForWindow: _window

                        modalDelegate: self

                       didEndSelector: @selector(savePanelDidEnd:returnCode:contextInfo:) 

                          contextInfo: NULL];

 

///////////////////////////////////////////////////////////////////////////////////////////////

Jacky

 

Any one help please?

Thanks