Implementing Navigation and Routing in Flutter

Imperative and declarative routing patterns for Flutter screen transitions and deep linking.

- Covers both Navigator (imperative, stack-based) and Router (declarative, URL-synchronized) approaches with guidance on when to use each

- Supports deep linking on iOS, Android, and Web; includes data passing via constructors, route arguments, and return values

- Implements nested navigation for multi-step flows (e.g., setup wizards) with independent sub-navigators and back-button interception

- Provides three complete workflows: standard screen transitions, deep-linkable routing setup, and nested navigation flows with code examples

Implementing Navigation and Routing in Flutter

Contents

- Core Concepts

- Implementing Imperative Navigation

- Implementing Declarative Navigation

- Implementing Nested Navigation

- Workflows

- Examples

Core Concepts

- Routes: In Flutter, screens and pages are referred to as routes. A route is simply a widget. This is equivalent to an Activity in Android or a ViewController in iOS.

- Navigator vs. Router:

- Use Navigator (Imperative) for small applications without complex deep linking requirements. It manages a stack of Route objects.

- Use Router (Declarative) for applications with advanced navigation, web URL synchronization, and specific deep linking requirements.

- Deep Linking: Allows an app to open directly to a specific location based on a URL. Supported on iOS, Android, and Web. Web requires no additional setup.

- Named Routes: Avoid using named routes (MaterialApp.routes and Navigator.pushNamed) for most applications. They have rigid deep linking behavior and do not support the browser forward button. Use a routing package like go_router instead.

Implementing Imperative Navigation