ios - 在刷完最后一个 View Controller 后，如何关闭/弹出 UIPageViewController？

Question

在最后一个 View Controller 被滑动后，如何关闭/弹出 UIPageViewController？基本上想制作一个带有图像的教程风格的分页 View ，并在用户从最后一页滑动到“下一页”后关闭。

- (UIViewController *)pageViewController:(UIPageViewController *)pageViewController viewControllerAfterViewController:(UIViewController *)viewController {

    NSUInteger index = [(EmailTutorialViewController *)viewController index];


    index++;

    if (index == 5) {
        [self.navigationController popViewControllerAnimated:YES]; // this doesn't do anything
        return nil;
    }

    return [self viewControllerAtIndex:index];
}

Answer 1

这是我使用过的简单解决方案:

在

- (UIViewController *)pageViewController:(UIPageViewController *)pageViewController viewControllerAfterViewController:(UIViewController *)viewController;

为 index == 5 返回空 Controller 并添加此 UIPageViewControllerDelegate 方法:

- (void)pageViewController:(UIPageViewController *)pageViewController 
willTransitionToViewControllers:(NSArray *)pendingViewControllers
{
    EmailTutorialViewController *viewController = 
                [pendingViewControllers objectAtIndex:0];
    if ([viewController index] == 5) 
    {
        [self.navigationController popViewControllerAnimated:YES];
    }
}