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    <p>For composing modal view controllers, you have two real options (ignoring cool stuff under NDA):</p> <ol> <li><p>Use the <a href="http://developer.apple.com/library/ios/featuredarticles/ViewControllerPGforiPhoneOS/CreatingCustomContainerViewControllers/CreatingCustomContainerViewControllers.html#//apple_ref/doc/uid/TP40007457-CH18-SW6" rel="nofollow">Container View Controller pattern</a> to insert the inner view controller into its parent.</p></li> <li><p>Add a new window with that view controller, similar to how you would do it in your AppDelegate. Create the window, add your child as a root view controller, make it key and visible. This is actually what <code>UIAlertView</code> does to perform a similar behavior to your app.</p></li> </ol> <p>I can't say what would be better for your case, but I have more experience with container view controllers so I'll give you the highlights. To add a child view you will need these steps (from the link above) in your parent view controller:</p> <pre><code>- (void) displayContentController: (UIViewController*) content; { [self addChildViewController:content]; // 1 content.view.frame = [self frameForContentController]; // 2 [self.view addSubview:self.currentClientView]; // 3 [content didMoveToParentViewController:self]; // 4 } </code></pre> <p>This will:</p> <ol> <li>Add your child view controller.</li> <li>Set the frame to whatever you want. This could be <code>self.view.bounds</code> if you want it to take up the full space.</li> <li>Add the view to its parent.</li> <li>Notify the child view controller that it was added.</li> </ol> <p>To remove a child view controller you would do the opposite, again from the link:</p> <pre><code>- (void) hideContentController: (UIViewController*) content { [content willMoveToParentViewController:nil]; // 1 [content.view removeFromSuperview]; // 2 [content removeFromParentViewController]; // 3 } </code></pre> <p>This will:</p> <ol> <li>Notify your child view controller that it will disappear.</li> <li>Remove its view from the visual stack.</li> <li>Remove it from its parent.</li> </ol>
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    1. POAdding Subviews on the top of MainViewController
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    1. COHow to remove current view controller? Your approach allows me to add secondSubViewController but still my firstSubviewController is under the secondSubViewController
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    2. COI've added the instructions for removing a view controller.
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    3. COHow to call [self hideContentController:view] in firstSurveyViewController? How should I replace "view"
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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.

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