Touch issues

Created a custom bar button and added to navBar this way

 UIButton *backButton = [UIButton buttonWithType:UIButtonTypeCustom];
    [backButton setFrame:CGRectMake(0, 0, 30, 30)];

    [backButton setImage:test forState:UIControlStateNormal];
    [backButton setImage:test forState:UIControlStateHighlighted];
    [backButton addTarget:self action:@selector(close:)
         forControlEvents:UIControlEventTouchUpInside];


    UIBarButtonItem *leftButton = [[UIBarButtonItem alloc]
                                   initWithCustomView:backButton];

    self.navigationItem.leftBarButtonItem = leftButton;