Multiple screens enable you to create separate pages for groups of related features in your app. Consider how a news app must take the user from the main screen with headlines to a page with the specific article. Perhaps a page also exists for setting user preferences. All these can be realized with screens.
As an example, we previously built an application called Android Quiz. Perhaps you want to differentiate the focus of the app, building one page dedicated to a quiz on Android and another page focused on trivia about devices.
Screens help separate functionality. Each screen should house a set of features and functions that are used together and are largely disconnected from the features of other screens.
Screens share ...