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PO
 

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    <p>I've run into the same thing. I create all of my controllers/views programmatically. Everything was working fine until I converted my project to use ARC. Once I did the <code>UISearchDisplayControllers</code> were no longer retained and the <code>searchDisplayController</code> property in each <code>UIViewController</code> was nil after the run loop ended.</p> <p>I don't have an answer why this is happening. The Apple docs suggest that the SDC should be retained by the view controller but this is clearly not happening.</p> <p>My solution was to create a second property to retain the SDC and I nil it when I unload the view. If you are not using ARC you need to release <code>mySearchDisplayController</code> in <code>viewDidUnload</code> and <code>dealloc</code>. Otherwise this is good as is.</p> <p>In MyViewController.h:</p> <pre><code>@property (nonatomic, strong) UISearchDisplayController * mySearchDisplayController; </code></pre> <p>In MyViewController.m:</p> <pre><code>@synthesize mySearchDisplayController = _mySearchDisplayController; - (void)viewDidLoad { [super viewDidLoad]; // create searchBar _mySearchDisplayController = [[UISearchDisplayController alloc] initWithSearchBar:searchBar contentsController:self]; _mySearchDisplayController.delegate = self; _mySearchDisplayController.searchResultsDataSource = self; _mySearchDisplayController.searchResultsDelegate = self; // other stuff } - (void)viewDidUnload { [super viewDidUnload]; _mySearchDisplayController = nil; // other stuff } </code></pre>
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    1. COI like this answer, but I would prefer an official-ish link from documentation. If you can provide either a mailing list link or something in the docs to back up your point, I'll be happy to accept the answer.
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    2. COYour method is what I ended up doing as well.
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    3. COWas just trying to help. I've seen nothing official regarding this. It's just obviously either broken or mis-documented as we both discovered.
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