KeyboardNotification.m

- (void)viewDidLoad
{
    [super viewDidLoad];
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardWillShow:)
                                                 name:UIKeyboardWillShowNotification
                                               object:nil];
    
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardWillHide:)
                                                 name:UIKeyboardWillHideNotification
                                               object:nil];
}

- (void)dealloc
{
    [[NSNotificationCenter defaultCenter] removeObserver:self];
}

- (void)keyboardWillShow:(NSNotification *)notification
{    
    CGSize keyboardSize = [notification.userInfo[UIKeyboardFrameBeginUserInfoKey] CGRectValue].size;
    NSNumber *rate = notification.userInfo[UIKeyboardAnimationDurationUserInfoKey];
    
    UIEdgeInsets contentInsets;
    if (UIInterfaceOrientationIsPortrait([[UIApplication sharedApplication] statusBarOrientation])) {
        contentInsets = UIEdgeInsetsMake(0.0, 0.0, (keyboardSize.height), 0.0);
    } else {
        contentInsets = UIEdgeInsetsMake(0.0, 0.0, (keyboardSize.width), 0.0);
    }
    
    [UIView animateWithDuration:rate.floatValue animations:^{
        self.tableView.contentInset = contentInsets;
        self.tableView.scrollIndicatorInsets = contentInsets;
    }];
    [self.tableView scrollToRowAtIndexPath:self.editingIndexPath atScrollPosition:UITableViewScrollPositionTop animated:YES];
}

- (void)keyboardWillHide:(NSNotification *)notification
{
    NSNumber *rate = notification.userInfo[UIKeyboardAnimationDurationUserInfoKey];
    [UIView animateWithDuration:rate.floatValue animations:^{
        self.tableView.contentInset = UIEdgeInsetsZero;
        self.tableView.scrollIndicatorInsets = UIEdgeInsetsZero;
    }];
}