title: Neither keyboard nor cursor are appearing when a UITextField is tapped
body: <p>I am testing out a simple application on Xcode 5.0.2. Using storyboard, I've dragged two view controllers that are connected by segues. On first view controller there is a button, after pressing that button next controller shows up which has two textfields. When I tap the textfield, the keyboard is not showing up and the text cursor is missing.</p>
  
  <p><strong>textFieldViewController.h file</strong> </p>
  
  <pre><code>@property (weak, nonatomic) IBOutlet UITextField *nameField;
  
  @property (weak, nonatomic) IBOutlet UITextField *numberField;
  
  - (IBAction)textFieldDoneEditing:(id)sender;
  
  
  - (IBAction)backgroundTap:(id)sender;
  </code></pre>
  
  <p><strong>textFieldViewController.m file</strong> </p>
  
  <pre><code> - (IBAction)textFieldDoneEditing:(id)sender {
      [sender resignFirstResponder];
  }
  
  - (IBAction)backgroundTap:(id)sender {
      [self.nameField resignFirstResponder];
      [self.numberField resignFirstResponder];
  }
  </code></pre>
  
  <p>screenshot
  <img src="https://i.stack.imgur.com/L4Yub.png" alt="enter image description here"></p>