ios--basic knowledge--autolayout and ScrollView

• Add ScrollView and its child views
  • Parent view. Addsubview (ScrollView)
  • Scrollview.addsubview (Container)--container is a placeholder view
  • Container.addsubviews (true · Want to show the views)
• Pull (or masturbate) constraints
  • ScrollView. Four sides stick to the parent view. Four edges
  • Container. Four-sided adhesion ScrollView.
  • Container.width = Scrollview.width (if you want to implement horizontal scrolling, it is Container.height = scrollview.height)
  • Container.subviews (Really want to show the views) to enjoy the layout, just remember a little, 拉（或撸）出来的约束要能确定出container的高度（横向滚动则为宽度） .
    The most straightforward layout is the same as in my demo: "v:|-[imageview]-[label]-[label]--[contentview]-[label]-|", sticking one from top to bottom, so that the height can be counted.

Excerpt from: http://www.jianshu.com/p/15277e17f127

ios--basic knowledge--autolayout and ScrollView