Objective-C Scrollキーボードが表示されて消滅したときに表示されない

Question

こんにちはキーボードが表示されたときにbackgroundLoginViewを上に移動します。 superView-> scrollView-> backgroundView-> backgroundLoginView-> textFeild1（ログインID）とtextFeild2（パスワード） パスワードがキーボードに表示されたら、backgroundLoginViewが自動的に上に移動するときのコードです。 あなたはこの試みることができるMY backgroundLoginView

問題

//LoginViewController.h 
@interface LoginViewController : UIViewController 
@property (strong, nonatomic) IBOutlet UIView *backgroundLoginView; 
@property (strong, nonatomic) IBOutlet UIView *backgroundView; 
@property (strong, nonatomic) IBOutlet UIScrollView *scrollView; 

@end 
//LoginViewController.m 
- (void)viewDidLoad { 
[super viewDidLoad]; 
UITapGestureRecognizer * tapGesture = [[UITapGestureRecognizer alloc] 
              initWithTarget:self 
              action:@selector(hideKeyBoard)]; 
    [_backgroundView addGestureRecognizer:tapGesture]; 

    _scrollView.contentSize = CGSizeMake(_scrollView.frame.size.width, CGRectGetMaxY(_backgroundView.frame)); 

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

    CGSize kbSize = [[[aNotification userInfo] objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue].size; 
    NSTimeInterval duration = [[[aNotification userInfo] objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue]; 

    [UIView animateWithDuration:duration animations:^{ 
     UIEdgeInsets edgeInsets = UIEdgeInsetsMake(0, 0, kbSize.height, 0); 
     [_scrollView setContentInset:edgeInsets]; 
     [_scrollView setScrollIndicatorInsets:edgeInsets]; 
    }]; 
} 

- (void)keyboardWillHide:(NSNotification*)aNotification 
{ 

    NSTimeInterval duration = [[[aNotification userInfo] objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue]; 

    [UIView animateWithDuration:duration animations:^{ 
     UIEdgeInsets edgeInsets = UIEdgeInsetsZero; 
     [_scrollView setContentInset:edgeInsets]; 
     [_scrollView setScrollIndicatorInsets:edgeInsets]; 
    }]; 
} 

Answer 1

：それは働いていた私の以前のプロジェクトの一つで、私は間違っているつもりです

-(void) textFieldDidBeginEditing:(UITextField *)textField { 

    UITableViewCell *cell = (UITableViewCell *)[textField superview]; 
    NSIndexPath *indexPath = [self.tableView indexPathForCell:cell]; 
    [self.tableView scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionTop animated:YES]; 
    return YES; 

}