title: UISearchBar becomeFirstResponder not showing keyboard
body: <p>Something peculiar is happening in my code with my UISearchBar and I can not figure out what is happening. In my application I have a view controller set up as follows</p>
  
  <p>View Controller A ---> View Controller B</p>
  
  <p>On View Controller A, I have a toolbar that contains a "page curl" button. Once this button is tapped, I perform a modal segue with a page curl transition style and I display View Controller B (this gives the user the effect that View Controller B is beneath View Controller A when in reality they are two distinctly seperate View Controllers). On View Controller B, I have a button called "Find Near Address." When a user taps "Find Near Address" I am looking for two actions to occur in seamless succession:</p>
  
  <ul>
  <li>First, I would like to perform an unwind segue (undo the page curl transition and curl View Controller A back onto View Controller B)</li>
  <li>Second, Once View Controller B has disappeared and View Controller A is the main view again, I would like for a UISearchBar on View Controller A to become the first responder, meaning a flashing cursor should appear in the search bar and a keyboard should pop up.</li>
  </ul>
  
  <p>So far, I have been able to perform the unwind segue successfully but when trying to set my UISearchBar on View Controller A as first responder, the keyboard is not popping up! I am completely lost and I do not know why this is happening.</p>
  
  <p>The approach I have taken is simple. The unwind segue on view Controller B returns and steps into a function call on View Controller A called <code>(IBAction)returnToMainView:(UIStoryboardSegue *)segue.</code> Now from within this function, I call <code>[self FindNearAddress]</code> and below is my FindNearAddress function: </p>
  
  <pre><code>- (void)FindNearAddress {
      [self.theSearchBar becomeFirstResponder];
  }
  </code></pre>
  
  <p>I have also implemented the following UISearchBarDelegate methods</p>
  
  <pre><code>- (void)searchBarTextDidBeginEditing:(UISearchBar *)theSearchBar {
      [self.theSearchBar setShowsCancelButton:YES animated:YES];
      self.theSearchBar.text = @"";
  }
  
  - (void)searchBarCancelButtonClicked:(UISearchBar *)theSearchBar {
      self.theSearchBar.text=@"Please enter a custom address..";
      [self.theSearchBar setShowsCancelButton:NO animated:YES];
      [self.theSearchBar resignFirstResponder];
  }
  </code></pre>
  
  <p>Can anyone please help me/point out what I am doing wrong? I would like to point out that I added a test button on View Controller A that calls my "FindNearAddress" function and this succeeded in making my UISearchBar first responder and bringing up the keyboard. The keyboard only fails to pop up when I am returning (unwinding) from View Controller B, the first responder gets set but the keyboard does not pop up for some strange reason.</p>