Named routes in Flutter - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a named route in Flutter?

A named route is a string identifier for a screen or page in a Flutter app. It helps navigate between screens using a simple name instead of widget instances.

beginner

How do you define named routes in Flutter?

You define named routes in the MaterialApp widget using the 'routes' property, which is a map of route names to builder functions that return widgets.

beginner

How do you navigate to a named route?

Use Navigator.of(context).pushNamed('routeName') to move to the screen associated with that named route.

intermediate

What is the benefit of using named routes?

Named routes make navigation easier to manage and read, especially in larger apps, by using simple string names instead of widget references.

intermediate

How can you pass data when navigating with named routes?

You can pass data by providing an 'arguments' parameter in pushNamed, then retrieve it in the destination screen using ModalRoute.of(context)?.settings.arguments.

Which Flutter widget property is used to define named routes?

A builder

B home

C routes

D theme

The 'routes' property in MaterialApp is a map that defines named routes.

How do you navigate to a named route called '/profile'?

A Navigator.go('/profile')

B Navigator.pushNamed(context, '/profile')

C Navigator.push(context, MaterialPageRoute(builder: (context) => ProfileScreen()))

D Navigator.push(context, '/profile')

Navigator.pushNamed(context, '/profile') is the correct way to navigate using a named route.

What type of value is used as a key in the routes map?

A Function

B int

C Widget

D String

Route names are strings used as keys in the routes map.

How can you retrieve arguments passed to a named route?

A ModalRoute.of(context)?.settings.arguments

B Navigator.arguments

C context.arguments

D Route.arguments

You retrieve arguments inside a screen using ModalRoute.of(context)?.settings.arguments.

Which of these is NOT a benefit of named routes?

A Improves app performance drastically

B Simplifies navigation code

C Makes routes easier to manage

D Allows passing data via arguments

Named routes help manage navigation but do not drastically improve app performance.

Explain how to set up and use named routes in a Flutter app.

Think about how you tell Flutter which screen to show for each route name.

Describe how to pass and retrieve data when navigating with named routes.

Passing data is like sending a package along with your navigation.