Can't show the image in grid mode using iCloud storage?

I work with images in iCloud storage. using this link is an example of the code that I am implementing. but here I use a grid to show images. for grid view I am using AQGridViewSample. I now had a problem implementing this.

my project works fine in local storage but doesn't work in storage iCloud. while adding an image to the grid, only one view was added, but the completion of the process that it removed from the view, as well, I did not receive CloudURL.

here is some basic code

    - (void)processiCloudFiles:(NSNotification *)notification {

// Always disable updates while processing results
[_query disableUpdates];

[_iCloudURLs removeAllObjects];

// The query reports all files found, every time.

NSArray * queryResults = [_query results];

for (NSMetadataItem * result in queryResults) {

    NSURL * fileURL = [result valueForAttribute:NSMetadataItemURLKey];

    NSNumber * aBool = nil;

    // Don't include hidden files
    [fileURL getResourceValue:&aBool forKey:NSURLIsHiddenKey error:nil];

    if (aBool && ![aBool boolValue]) {

        [_iCloudURLs addObject:fileURL];

        NSLog(@"%@",_iCloudURLs);



    }

}

NSLog(@"Found %d iCloud files.", _iCloudURLs.count);

_iCloudURLsReady = YES;

if ([self iCloudOn]) {

    NSLog(@"%d",_objects.count);

    // Remove deleted files
    // Iterate backwards because we need to remove items form the array

    for (int i = _objects.count -1; i >= 0; --i) {

        PTKEntry * entry = [_objects objectAtIndex:i];

        if (![_iCloudURLs containsObject:entry.fileURL]) {

            [self removeEntryWithURL:entry.fileURL];
        }
    }

    NSLog(@"%@",_iCloudURLs);

    // Add new files
    for (NSURL * fileURL in _iCloudURLs) {

        [self loadDocAtURL:fileURL];
    }

    self.navigationItem.rightBarButtonItem.enabled = YES;

}

if (_moveLocalToiCloud) {

    _moveLocalToiCloud = NO;
    [self localToiCloudImpl];

}
else if (_copyiCloudToLocal) {

    _copyiCloudToLocal = NO;
    [self iCloudToLocalImpl];

}

[_query enableUpdates];

 }

and also I will show my console stream of my application, please help me

 2013-02-19 13:29:26.159 XXXX[337:907] iCloud available at: file://localhost/private/var/mobile/Library/Mobile%20Documents/XXXXX~com~XXXX~XXXX/
 2013-02-19 13:29:32.847 XXXX[337:907] No longer watching iCloud dir...
 2013-02-19 13:29:32.849 XXXX[337:907] Starting to watch iCloud dir...
 2013-02-19 13:29:33.002 XXXX[337:907] Found 0 iCloud files.
 2013-02-19 13:29:33.004 XXXX[337:907] local => iCloud impl
 2013-02-19 13:29:38.697 XXXX[337:907] Want to create file at file://localhost/private/var/mobile/Library/Mobile%20Documents/XXXX~com~XXXX~XXXX/Documents/iBoast_Art_Soodu.ibt
 2013-02-19 13:29:38.781 XXXX[337:907] File created at file://localhost/private/var/mobile/Library/Mobile%20Documents/XXXX~com~XXXX~XXXX/Documents/iBoast_Art_Soodu.ibt
 2013-02-19 13:29:38.790 XXXX[337:907] load table
 2013-02-19 13:30:38.563 XXXX[337:907] button index: 1
 2013-02-19 13:30:41.595 XXXX[337:907] iCloud available at: file://localhost/private/var/mobile/Library/Mobile%20Documents/XXXX~com~XXXX~XXXX/
 2013-02-19 13:30:41.607 XXXX[337:907] No longer watching iCloud dir...
 2013-02-19 13:30:41.612 XXXX[337:907] Starting to watch iCloud dir...
 2013-02-19 13:30:41.780 XXXX[337:907] Success to close file://localhost/private/var/mobile/Library/Mobile%20Documents/XXXX~com~XXXX~XXXX/Documents/iBoast_Art_Soodu.ibt
 2013-02-19 13:30:41.790 XXXX[337:907] load table
 2013-02-19 13:30:42.011 XXXX[337:907] Found 0 iCloud files.