IOS 拦截所有push进来的子控制器

/**

 *  能拦截所有push进来的子控制器

 */

- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated

{

    if (self.viewControllers.count > ) { // 如果现在push的不是栈底控制器(最先push进来的那个控制器)

        viewController.hidesBottomBarWhenPushed = YES;

        // 设置导航栏按钮

        viewController.navigationItem.leftBarButtonItem = [UIBarButtonItem itemWithImageName:@"navigationbar_back" highImageName:@"navigationbar_back_highlighted" target:self action:@selector(back)];

        viewController.navigationItem.rightBarButtonItem = [UIBarButtonItem itemWithImageName:@"navigationbar_more" highImageName:@"navigationbar_more_highlighted" target:self action:@selector(more)];

    }

    [super pushViewController:viewController animated:animated];

}

- (void)back

{

#warning 这里用的是self, 因为self就是当前正在使用的导航控制器

    [self popViewControllerAnimated:YES];

}

- (void)more

{

    [self popToRootViewControllerAnimated:YES];

}

@end