UITextView cursor below frame when changing frame

Question

I have a UIViewCOntrollerthat contains a UITextView. When the keyboard appears I resize it like this:

#pragma mark - Responding to          


        

Answer 1

Leo Natan, you started out well but your execution was relatively inefficient. Here is a better way of doing it with less code:

// Add Keyboard Notification Listeners in ViewDidLoad
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_keyboardWillShowNotification:) name:UIKeyboardWillShowNotification object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_keyboardWillHideNotification:) name:UIKeyboardWillHideNotification object:nil];


// And Add The Following Methods
- (void)_keyboardWillShowNotification:(NSNotification*)notification
{    
    CGRect textViewFrame = self.textView.frame;
    textViewFrame.size.height -= ([notification.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue].size.height + 4.0);
    self.textView.frame = textViewFrame;
}

- (void)_keyboardWillHideNotification:(NSNotification*)notification
{
    CGRect textViewFrame = self.textView.frame;
    textViewFrame.size.height += ([notification.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue].size.height + 4.0);
    self.textView.frame = textViewFrame;
}

- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text {

    NSRange typingRange = NSMakeRange(textView.text.length - 1, 1);
    [textView scrollRangeToVisible:typingRange];

    return YES;

}

- (void)dealloc {

    [[NSNotificationCenter defaultCenter] removeObserver:self];

}