iOS11 分页滚动视图突然可以垂直滚动

Question

我有一个使用 EMPageViewController 来显示一组入门幻灯片的应用程序。我的理解是底层滚动视图是使用分页模式显示幻灯片。

更新到iOS11后，我发现幻灯片突然跟随手指移动，因此可以拖动并上下弹跳。我希望分页滚动视图只能水平滚动。

如何在 iOS11 中将分页滚动视图限制为仅水平滚动？

我试过了，但没用

 pageViewController.scrollView.alwaysBounceVertical = false

Answer 1

这解决了问题：

if #available(iOS 11.0, *)
{
    self.scrollView.contentInsetAdjustmentBehavior = .never
}

The behavior for determining the adjusted content offsets. This property specifies how the safe area insets are used to modify the content area of the scroll view.

contentInsetAdjustmentBehavior 是 iOS 11 > 的新增功能，默认值为自动。

Content is always adjusted vertically when the scroll view is the content view of a view controller that is currently displayed by a navigation or tab bar controller. If the scroll view is horizontally scrollable, the horizontal content offset is also adjusted when there are nonzero safe area insets.

这使得我的一些 UIScrollView 滚动得比它们被排除的更多。

iOS11 分页滚动视图突然可以垂直滚动

iOS11 paged scroll view suddenly is scrollable vertically

uiscrollview

ios11