cruiser 1.2.3

Cruiser is a fully featured router library for Flutter applications.

example/lib/main.dart

import 'dart:math';
import 'package:cruiser/cruiser.dart';
import 'package:cruiser_example/example_args.dart';
import 'package:cruiser_example/utils/color_converter.dart';
import 'package:cruiser_example/utils/cruiser_transition_extensions.dart';
import 'package:flutter/material.dart';
import 'package:flutter/widgets.dart';

const colors = [Colors.blue, Colors.green, Colors.purple, Colors.orange, Colors.pink, Colors.amber, Colors.cyan];

const routeName = '/example';
//const routeNameSecond = '/second-example';

final router = Cruiser();

final random = Random();

//bool isSecondRoute = false;

void main() 
{
    router.addRoute(CruiserRoute(name: routeName, builder: (context, args) => ExamplePage(args: args)));
 //   router.addRoute(CruiserRoute(name: routeNameSecond, builder: (context, args) => SecondExamplePage(args: args)));

    runApp(MyApp());
}

class MyApp extends StatelessWidget 
{
    @override
    Widget build(BuildContext context) 
    {
        return MaterialApp(
            title: 'Cruiser Example',
            initialRoute: routeName,
            navigatorKey: router.navigatorKey,
            onGenerateRoute: router.generator,
            navigatorObservers: [router.observer],
            //home: ExamplePage(args: null),
            /*builder: (BuildContext context, Widget child)
            {
                return WillPopScope(
                    child: Scaffold(
                        resizeToAvoidBottomInset: true,
                        body: DefaultTextStyle(
                            style: TextStyle(fontSize: 16, color: Colors.white),
                            child: child
                        )
                    ), 
                    onWillPop: () async 
                    {
                        return Future.value(false);
                    }
                );
            }*/
        );
    }
}

class SecondExamplePage extends ExamplePage
{
    final ExampleArgs args;

    SecondExamplePage({@required this.args}): super(args: args);

    @override
    ExamplePageState createState() => new ExamplePageState();
}

class ExamplePage extends StatefulWidget
{
    final ExampleArgs args;

    ExamplePage({@required this.args});

    @override
    ExamplePageState createState() => new ExamplePageState();
}

class ExamplePageState extends State<ExamplePage>
{
    Color nextColor;
    TransitionType nextTransition;

    @override
    void initState() 
    {    
        super.initState();

        nextColor = _getNextColor(widget.args?.color);
        nextTransition = _getNextTransition(widget.args?.transition);
   }

    @override
    Widget build(BuildContext context)
    {   
        return WillPopScope(
            child: Scaffold(
                resizeToAvoidBottomInset: true,
                body: DefaultTextStyle(
                    style: TextStyle(fontSize: 16, color: Colors.white),
                    child: Container(
                        color: widget.args?.color ?? Colors.white,
                        child: SafeArea(
                            child: Center(
                                child: Column(
                                    mainAxisAlignment: MainAxisAlignment.center,
                                    crossAxisAlignment: CrossAxisAlignment.center,
                                    children: [
                                        ExampleButton(
                                            text: '${nextTransition.name}', // '${isSecondRoute ? 'Second': 'First'} 
                                            color: ColorConverter.darken(widget.args?.color ?? Colors.blue, 0.1),
                                            onPressed: () async => await _toNextRoute(context)
                                        )
                                    ]
                                )
                            )
                        ),
                    )
                )
            ), 
            onWillPop: () async 
            {
                router.pop();
                return Future.value(false);
            }
        );
    }

    Future _toNextRoute(BuildContext context) async 
    {
    /*    isSecondRoute = !isSecondRoute;

        if(isSecondRoute)
        {
            await router.navigate(
                context, 
                routeNameSecond, 
                transition: TransitionType.secondZoomIn,
                args: ExampleArgs(color: nextColor, transition: nextTransition));
        }
        else
        {
            await router.navigate(
                context, 
                routeName, 
                transition: TransitionType.zoomIn,
                args: ExampleArgs(color: nextColor, transition: nextTransition)); 
        }

        return;

        final route = isSecondRoute ? routeNameSecond : routeName;
        isSecondRoute = !isSecondRoute;
*/
        await router.navigate(
            context, 
            routeName, 
            transition: nextTransition,
            args: ExampleArgs(color: nextColor, transition: nextTransition)
        ); 
    }

    TransitionType _getNextTransition(TransitionType previousTransition)
    {   
        if(previousTransition == null) return TransitionType.values[0];

        var index = TransitionType.values.indexOf(previousTransition) + 1;

        return TransitionType.values[index < TransitionType.values.length ? index : 0];
    }

    Color _getNextColor(Color previousColor)
    {
        var available = previousColor != null ? colors.where((x) => x != previousColor).toList() : colors;

        return available[random.nextInt(available.length)];
    }
}

class ExampleButton extends StatelessWidget
{
    final VoidCallback onPressed;
    final String text;
    final Color color;

    ExampleButton({this.text, this.onPressed, this.color});

    @override
    Widget build(BuildContext context) 
    {
        return ButtonTheme(
            height: 47,
            padding: EdgeInsets.symmetric(horizontal: 25),
            child: FlatButton(
                shape: RoundedRectangleBorder(
                    borderRadius: BorderRadius.circular(4.0),
                ),
                color: color,
                textColor: Colors.white,
                onPressed: onPressed,
                child: Text(text, style: TextStyle(fontSize: 14))
            )
        );
    }
}