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    <p>I was having the same issue and I believe this to be an Apple bug (I filed it a month ago with no response from them.) For me, it was specifically the "detail" view that was blank when the app started at orientation UIInterfaceOrientationLandscapeRight (3). It would look like this: <a href="http://d.pr/cGcU" rel="nofollow">http://d.pr/cGcU</a>. This would occur when I restricted one of the two view controllers (say, the RootViewController) to landscape-only:</p> <pre><code>- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { return UIInterfaceOrientationIsLandscape(interfaceOrientation); } </code></pre> <p>With this in place, the following would occur during the detail view's initialization:</p> <pre><code>2010-11-15 20:17:47.792 MultipleDetailViews[96250:207] firstDetailViewController willAnimateRotationToInterfaceOrientation: 3 (landscape) 2010-11-15 20:17:47.792 MultipleDetailViews[96250:207] self.view.hidden is: 0 2010-11-15 20:17:47.799 MultipleDetailViews[96250:207] rotating... 2010-11-15 20:17:47.848 MultipleDetailViews[96250:207] firstDetailViewController didRotateFromInterfaceOrientation 2010-11-15 20:17:47.849 MultipleDetailViews[96250:207] self.view.hidden is: 1 </code></pre> <p>For some reason the detail view would mysteriously become hidden during rotation to orientation 3. Until Apple fixes this bug (it doesn't occur in 3.2), my workaround is currently to override the following method in the detail view controller, re-displaying the view after rotation has completed:</p> <pre><code>- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation { self.view.hidden = NO; } </code></pre> <p><strong>EDIT</strong>: If your detail view isn't a direct subview of <code>splitViewController.view</code> (e.g. you are using a <code>UINavigationController</code>), you will need to set <code>hidden</code> on the topmost view on the detail side within the <code>UISplitViewController</code>:</p> <pre><code>- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation { // Make sure you set splitViewController via an outlet or get it via your AppDelegate for (UIView *splitViewChild in splitViewController.view.subviews) splitViewChild.hidden = NO; } </code></pre>
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    1. POHow implement splitview for iphone os 4.2?
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    1. CONice one. Obscure as many other bugs Apple simply ignores fixing, this was making me pull my hair out.
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      1. USGrzegorz Adam Hankiewicz
 

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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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