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POHow do I make NSMetadataQuery see my saved documents' folders as packages?
 

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  1. POHow do I make NSMetadataQuery see my saved documents' folders as packages?
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    <p>I'm writing an app which saves and loads documents both locally and on iCloud. Locally is working fine, but I'm having a problem with iCloud.</p> <p>The documents are saved as a package - the UIDocument reads and writes an NSFileWrapper which contains an image file, a thumbnail file, and an info plist. When I save the document to iCloud and then look at the files under 'Manage Storage', I see the individual files instead of the packages; and more importantly when I search for files using NSMetadataQuery it returns an NSMetadataItem for each of the individual files instead of the packages. As a result, my app doesn't realise there are any packages to load and iCloud is pretty useless.</p> <p>I <em>thought</em> that if I set up the document type and exported the UTI correctly that the packages would be treated properly. Was that right? If so, what's the checklist for setting up a document type as a package? I have:</p> <ul> <li>Added a document type</li> <li>set LSTypeIsPackage to YES (I've tried string YES and bool YES)</li> <li>set CFBundleTypeExtensions to an array containing one string: the file suffix</li> <li>set LSHandlerRank to Owner</li> <li>Exported a UTI with the same identifier</li> <li>set it to conform to com.apple.package</li> <li>added a UITypeTagSpecification dictionary, containing an array for the key public.filename-extension, which contains one string: the file suffix</li> </ul> <p>I've also tried adding a matching Imported UTI to match the exported one, but no luck there.</p> <p>What did I miss?</p> <p>UPDATE: I notice that the OP in <a href="https://stackoverflow.com/questions/9026242/nsmetadataquery-ignoring-custom-file-package-type">this question</a> is seeing the behaviour I want (even though he doesn't want it) so it must be possible.</p>
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