30.5 Summary

This chapter has introduced the hierarchical data support and disclosure features of the List, OutlineGroup and DisclosureGroup views included with SwiftUI. The List and OutlineGroup views allow hierarchical data to be displayed to the user with just a few lines of code with disclosure controls provided to allow the user to expand and collapse sections of the hierarchy. These disclosure controls are provided by the DisclosureGroup view which may also be used directly within your own SwiftUI view layouts.