title: UIKeyboardWillShowNotification not calling and only UIKeyboardWillHideNotification calling in iOS 9
body: <p>All is working good till iOS 8.
  But when user tap on text field control comes directly in UIKeyboardWillHideNotification notification
  Log in console -Can't find keyplane that supports type 4 for keyboard iPhone-PortraitTruffle-NumberPad; using 675849259_PortraitTruffle_iPhone-Simple-Pad_Default</p>
  
  <p>Here is the code--  </p>
  
  <pre><code>`
  In view did load
  - (void)viewDidLoad {
      [super viewDidLoad];
      self.txtMobNumber.delegate = self;
      self.txtMobNumber.keyboardType = UIKeyboardTypeNumberPad;
  
      [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:@"UIKeyboardWillShowNotification" object:nil];
      [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillHide:) name:@"UIKeyboardWillHideNotification" object:nil];
  }
  
  notification callback
  - (void)keyboardWillShow:(NSNotification *)notification
  {
      // Save the height of keyboard and animation duration
      NSDictionary *userInfo = [notification userInfo];
      CGRect keyboardRect = [userInfo[@"UIKeyboardBoundsUserInfoKey"] CGRectValue];
      [UIView beginAnimations:@"moveKeyboard" context:nil];
      float height = keyboardRect.size.height-60;
      self.view.frame = CGRectMake(self.view.frame.origin.x, self.view.frame.origin.y - height, self.view.frame.size.width, self.view.frame.size.height);
      [UIView commitAnimations];
      //  [self setNeedsUpdateConstraints];
  }
  // Reset the desired height
  - (void)keyboardWillHide:(NSNotification *)notification
  {
      // Reset the desired height (keep the duration)
      NSDictionary *userInfo = [notification userInfo];
      CGRect keyboardRect = [userInfo[@"UIKeyboardBoundsUserInfoKey"] CGRectValue];
      [UIView beginAnimations:@"moveKeyboard" context:nil];
      float height = keyboardRect.size.height-60;
      self.view.frame = CGRectMake(self.view.frame.origin.x,         self.view.frame.origin.y + height, self.view.frame.size.width, self.view.frame.size.height);
      [UIView commitAnimations];
  
  }
  
  `
  </code></pre>