UIKeyboardWillShowNotification not calling and only UIKeyboardWillHideNotification calling in iOS 9 - objective-c

Question

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
Here is the 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];
}
`

Answer 1

This can be related to simulator setup, see menu "Hardware > Keyboard > Connect Keyboard Hardware". If this option is ON, you will get UIKeyboardWillHideNotification, but never UIKeyboardWillShowNotification.