UIPageViewController最后一页弹跳效果？

Question

我正在使用UIPageViewController来翻阅多个内容页面，当用户UIPageViewController的最后一页时我没有做任何事情，因为没有更多的页面要切换到，我怎样才能实现像滚动一样的反弹效果到UIScrollView的末尾，以便它给用户一些反馈它是序列的结束？

Answer 1

Try this!

1. Add an empty page before your 'first' page (and optionally set it to be hidden)
2. After you have made the setup for your UIPageViewController, manually go to the second page, your 'first' page.
3. In the pageViewController:viewControllerBeforeViewController: delegate method, check if the view will be the empty page. If so,
   1. manually go to the second page again, maybe after some delay. Or
   2. In some sort of way, disable the UIPanGestureRecognizer in your UIPageViewController

This may not be the perfect solution, but hopefully acceptable. I'm also going to do something like this later, so I'll maybe explain more then and try it out myself. Good luck!

//Edit

Ah.. if you want to have the bounce effect last instead (I recommend you to do both)..

1. Skip this.
2. Add an extra (or two if you have an odd number of pages and double-sided view) empty page(s) after all your other pages (and optionally set it/them to be hidden)
3. In the pageViewController:viewControllerAfterViewController: delegate method, check if the view will be the (last) empty page. If so,
   1. manually go to the previous page, maybe after some delay. Or
   2. In some sort of way, disable the UIPanGestureRecognizer in your UIPageViewController

In (3), if you haven't disable the UITapGestureRecognizer, you will have to decide if it is the tap gesture, and then choose (3.1), else take the (3.2) route!