在 Interface Builder 使用 UIScrollView?
问题说明
虽然我过去通过编程操作成功地使用了 UIScrollView，但我无法通过仅在 Interface Builder 中设置它来使其工作.
While I've used UIScrollView successfully in the past by manipulating it programmatically, I'm having trouble getting it to work by setting it up exclusively in Interface Builder.
我的 iPhone 应用中有一个简单的关于"页面.它有一个 UITextView、一些图标和指向我的其他应用程序的链接.我已将所有这些视图添加到我的 UIScrollView 中，并对其进行排列以使它们的总大小 > 480.当我启动我的应用程序时，滚动视图仅显示适合屏幕的内容，并且没有滚动.
I have a simple "about" page in my iPhone app. It has a UITextView, some icons, and links to my other apps. I have added all of these views to my UIScrollView, arranging them so that their total size is > 480. When I launch my app, the scrollview displays only the contents that fit on the screen, and nothing scrolls.
是否可以完全通过 IB 来完成，还是必须通过代码来操作 contentSize?
Is it possible to do this entirely via IB, or must I manipulate the contentSize via code?
正确答案
你忘记设置 UIScrollView 的 contentSize 属性了.奇怪的是，您不能从 Interface Builder 执行此操作.您必须从管理此滚动视图的视图控制器中执行此操作.
You forgot to set the contentSize property of the UIScrollView. Strangely enough you can not do this from Interface Builder. You will have to do it from the view controller managing this scroll view.
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