在UIScrollView中嵌入UITableView / UICollectionView

Question

I am trying to build a two-dimensional navigation in an app, similar to what Snapchat has done. See picture below for reference of what I am trying to achieve. I tried to do this by putting all views inside of a UIScrollView and then manually creating direction locks to restrict it to never be able to scroll onto the empty, top left, area. The idea came from here . This does the job to some extent, but the UITableView is not cooperating with the UIScrollView very much, and it seems as though they fight for the ownership of touches. I can only scroll the table view after selecting one of its rows first, and I need to touch outside of the table view in order to scroll back to the right.

I know that embedding UITableViews inside UIScrollViews is not recommended by Apple, perhaps even discouraged:

Important: You should not embed UIWebView or UITableView objects in UIScrollView objects. If you do so, unexpected behavior can result because touch events for the two objects can be mixed up and wrongly handled.

But I do not see another way to achieve this. I have also tried using two separate UIScrollViews , one for horizontal scrolling and the other one would be embedded in the first one and control all vertical scrolling. I had issues setting this up, though, as one of the views would render its subviews rather weird.

If there only was a way to disable a UIScollView 's horizontal or vertical pan gesture recognizer... I have also tried setting the UIScrollView 's delaysTouchesBegan and canCancelContentTouches to different values, without any luck.

Answer 1

如果您想要的是Snapchat风格的效果，则应该可以将UIPageViewController用于水平分页，然后将UITableView或UIScrollView用于垂直内容。