Only the simplest apps consist of a single view such as the Calculator app. Most apps usually need two or more views to display information. While you could create buttons and link them to different views, this can be a clumsy solution. A far better solution is to organize related views together.
Xcode offers two ways to group related views together. One option is to use a Navigation Controller. This allows the user to browse through a list of views in sequential order where each view can open the next view and a special back button returns to the previous view ...
