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POTrying to achieve persistent UIToolBars with hidden UINavigationBar appears to be manipulating undocumented View class
 

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  1. POTrying to achieve persistent UIToolBars with hidden UINavigationBar appears to be manipulating undocumented View class
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    <p>I have a toolbar at the top and at the bottom both set in the window. I am also using a UINavigationController. So I want to hide the nav bar as well. I found this question:</p> <p><a href="https://stackoverflow.com/questions/1072080/persistent-uibarbuttonitem-in-uitoolbar">Persistent UIBarButtonItem in UIToolbar?</a></p> <p>So in the app delegate I did:</p> <pre><code>[window addSubview:navigationController.view]; CGRect frame = navigationController.view.frame; // What is this view??? frame.size.height -= (topToolBar.frame.size.height + bottomToolBar.frame.size.height + [UIApplication sharedApplication].statusBarFrame.size.height); frame.origin.y += topToolBar.frame.size.height + [UIApplication sharedApplication].statusBarFrame.size.height; navigationController.view.frame = frame; [navigationController setNavigationBarHidden:YES]; </code></pre> <p>The toolbars are linked in IB. This is what you can see: </p> <ul> <li>The status bar. OK.</li> <li><em>Half</em> the top toolbar</li> <li>The nav bar which obscures the bottom half of the top toolbar and a bit of the loaded view.</li> <li>Your first view with a small portion at the top hidden by the nav bar.</li> <li>The bottom toolbar is OK.</li> </ul> <p>setNavigationBarHidden just seems to move the nav bar out of the way. I can achieve what I want by explicitly setting hidden=YES on the nav bar (or a category on UINavigationBar and overriding drawRect).</p> <p>The view on the nav controller is apparently a UILayoutContainerView. This appears to be undocumented. </p> <p>So:</p> <ul> <li>Is this a good method? May it get rejected?</li> <li>Why do I get this overlapping behaviour with the nav bar? </li> </ul>
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    1. USMegasaur
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    1. COI may get voted down for this comment, but: why mess around with UINavigationController? It is a very well working piece of UI component. If you don't need its functionality, just create your own views and slide them in or out using an animation.
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      1. POTrying to achieve persistent UIToolBars with hidden UINavigationBar appears to be manipulating undocumented View class
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    2. COAt first I did not have any toolbars and using UINavigationController and hiding the UINavigationBar was the easiest way to go. I got the view management and transitions for free. Now I am just curious about how this all works.
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      1. USMegasaur
 

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