router_management 2.1.0

A plugin that wraps the Navigator 2.0 with a syntax sugar for Flutter Developers

Router Management

A plugin that wraps the Navigator 2.0 with a syntax sugar for Flutter Developers

Getting Started

• Installing the package with Flutter CLI:

$ flutter pub add router_management

• Installing the package manually:

Open the pubspec.yaml file, search for dependencies: and write this below:

dependencies:
   router_management: ^2.0.0
   ...

Usage

1. Create a PageWidget that builds a Router for example:

class App extends PageWidget {
  const App();

  @override
  void onInit(BuildContext context) {
    print('onInit');
    super.onInit(context);
  }

  @override
  void onChangedDependencies(BuildContext context) {
    print('onChangedDependencies');
    super.onChangedDependencies(context);
  }

  @override
  void onDeactivate(BuildContext context) {
    print('onDeactivate');
    super.onDeactivate(context);
  }

  @override
  void onDispose(BuildContext context) {
    print('onDispose');
    super.onDispose(context);
  }

  @override
  Widget build(
     BuildContext context,
     RouteInformationParser<Object> routeInformationParser,
     RouterDelegate<Object> routerDelegate) {
   return MaterialApp.router(
     routeInformationParser: routeInformationParser,
     routerDelegate: routerDelegate,
     title: 'Router Management Example',
     localizationsDelegates: const [
      GlobalWidgetsLocalizations.delegate,
      GlobalMaterialLocalizations.delegate,
       GlobalCupertinoLocalizations.delegate,
      ]
    );
  }
}

2. Create a Widget that represents a page for example:

class HomeScreen extends StatelessWidget {
  const HomeScreen({Key? key}) : super(key: key);

  // Declare the path as constant
  static const path = '/home/:name';

  // Declare the name as constant
  static const name = 'Home';

  @override
  Widget build(BuildContext context) {
    final arguments = context.arguments; // Get the page's arguments

    return Scaffold(
      body: Center(
        child: Text(
          'Welcome ${arguments.params['name']}',
          style: const TextStyle(fontSize: 32, color: Colors.black),
        ),
      ),
    );
  }
}

3. Implements the NavigationRouter into the void main() method for example:

void main() {
  runApp(NavigationRouter(
    child: const App(), // The PageWidget that builds a Router
    pages: [
      NavigationPage(
        path: SplashScreen.path,
        builder: () => const SplashScreen(),
        name: SplashScreen.name,
      ),
      NavigationPage(
        path: HomeScreen.path,
        builder: () => const HomeScreen(),
        name: HomeScreen.name,
      ),
    ], // The pages
    initialPage: SplashScreen.path,  // The initial page's path. Defaults to "/"
    unknownPage: NavigationPage(
      path: NotFound.path,
      builder: () => const NotFound(),
      name: NotFound.name,
    ), // A page that is built when an unknown path is passed
  ));
}

4. Use the Navigation instance from NavigationService.instance to controls the Navigator 2.0 with Imperative methods for example:

NavigatorService.instance.pushReplacement('/home/John Doe'); or using Router Management extensions on BuildContext BuildContext.navigator.pushReplacement('/home/John Doe');

5. To get the path's arguments use the extension on BuildContext for example:

@override
Widget build(BuildContext context) {
  final arguments = context.arguments;
  ...

6. Keep coding :)

APIS

The Router Management has many APIS to ensure that you can handle the Navigator 2.0

NavigationRouter

Is the widget core for Navigator 2.0 implementation

• Props

Name	Description	Required
child	Is used to build a Router to handle the Navigator 2.0 implementation	true
pages	Is used to create pages that can be accessed by the Navigator 2.0	true
initialPage	Is used to render the page that contains the same path. Defaults to "/"	false
navigatorObservers	Is used to observe the Navigator 2.0 when navigating between screens. Defaults to List.empty()	false
useHash	If it is true then will be used the default url strategy that is a path with hash, for example: flutterexample.dev/#/path/to/screen, else will be flutterexample.dev/path/to/screen. Defaults to false	false
restorationScopeId	Is used to save and restore the navigator 2.0 state, if it is null then the state will not be saved. Defaults to null	false
unknownPage	Is used to create an unknown page with the given path. Defaults to null	false
transitionsBuilder	Is used to build a global custom animation transition when navigating to another page. Defaults: If the platform is web then will not has any transition else will be null	false

• Static Methods

Name	Description
defaultWebTransition	Is used to get the default web transition that means it does not have any transition when navigating between screens

PageWidget

Is used to create a Router to handle the navigator 2.0. For example into the build we can use the default implementation of MaterialApp.router

• Methods

Name	Description
onInit	Is a shortcut for the method State.initState
onChangedDependencies	Is a shortcut for the method State.didChangeDependencies
onDeactivate	Is a shortcut for the method State.deactivate
onDispose	Is a shortcut for the method State.dispose
build	Is used to render a Router that handle the Navigator 2.0.

NavigationPage

Is used to create a page into the NavigationRouter

• Props

Name	Description	Required
path	Is the page's path like: /home. To declare a page's param use this pattern "/:param-name" then use the PageArguments.params['param-name'] to get the data from the path like: /profile/:id	true
builder	Is used to build the page and create an active page	true
fullscreenDialog	Is used to create a fullscreen dialog page. Defaults to false	false
maintainState	If it is false the state of the page will be discarded when navigating to another page. Defaults to true	false
transitionDuration	Is used to controls the animation transition. Defaults to Duration(milliseconds: 400)	false
validators	is used to controls the page's activation when it must has more than the basics arguments like an id or something else, if it returns false then the page will be redirect to the initial page or use the Navigation to redirect to another page. Defaults to List.empty()	false
restorationId	is used to save and restore the page's state, if it is null then the state will not be saved. Defaults to null	false
name	Is used to name the page. Defaults to null	false
transitionsBuilder	Is used to create a custom transition to the page. Defaults to System's Animation Transition	false

NavigationService

Is the core class that is used to get the actual Navigation instance

• Static Methods

Name	Description
instance	Is the implementation of Navigator 2.0

Navigation

Is the core navigation interface and is used to controls the Navigator 2.0

• Methods

Name	Description
push	Is used to navigate to another screen maintaining the previous screen
pushReplacement	Is used to navigate to another screen replacing the previous screen
pushAndReplaceUntil	Is used to navigate to another screen and replaces the previous screens until the condition returns true
pop	Is used to navigate back to the previous screen
popAndPush	Is used to navigate back to the previous screen and navigate to another screen
popUntil	Is used to navigate back until the condition returns true
pushToUnknownPage	Is used to navigate to the unknown page

• Getters

Name	Description
canPop	Is used to know when the page can be popped

PageArguments

Is used to get the current page's arguments

• Props

Name	Description
uri	Is used to get the path's data
data	Is used to get the data that can be passed into the Navigation push methods
params	Is used to get the path's params
path	Is a shortcut from Uri.path to get the current path
paths	Is a shortcut from Uri.pathSegments to get the current paths segments
completePath	Is a shortcut from Uri.toString() to get the current complete path
query	Is a shortcut from Uri.queryParameters to get the current query as a Map<String,String> object
queries	Is a shortcut from Uri.queryParametersAll to get the current list of queries as a Map<String,List<String>> object

PageValidator

Can be used to validate any pages with NavigationPage.validators

• Methods

Name	Description
call	If it returns false then the page cannot be activated and can be used to redirect to another page when it is needed

Extensions

The Router Management has two extensions to maintain a clean code

NavigationExtension

Is used to get the current Navigation instance on the BuildContext

• Getters

Name	Description
navigator	Is used to get the current Navigation instance

PageArgumentsExtension

Is used to get the current PageArguments on the BuildContext

• Getters

Name	Description
arguments	Is used to get the current PageArguments