无法使用iCloud存储在网格视图中显示图像？

Question

我正在使用图像到iCloud存储.使用此链接 示例代码我正在实施.但在这里我使用网格视图来显示图像.对于网格视图,我正在使用AQGridViewSample.现在我在实现这个时遇到了一些问题.

我的项目在本地存储中工作正常,但它不在iCloud存储中工作.虽然添加图像到网格视图只添加了一个视图但完成了从视图中删除的过程,我也没有得到CloudURL.

这里有一些主要代码

    - (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];

 }

并且我也显示我的控制台Flow of my Application请帮助我

 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.

Answer 1

我对此没有权威的答案，但我肯定怀疑这是一个时间问题。我希望看到一些委托操作正在进行，以了解 iCloud 项目何时上传。

我还会稍微改进一下你的日志记录。线路

NSLog(@"%@",_iCloudURLs);

应该有更好的格式。如果没有这个，我无法确定，但看起来这条线永远不会达到。