cruiser 1.0.0

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/services.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';

final router = Cruiser();

final random = Random();

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

    runApp(MyApp());
}

class MyApp extends StatelessWidget 
{
    @override
    Widget build(BuildContext context) 
    {
        return MaterialApp(
            title: 'Cruiser Example',
            initialRoute: routeName,
            navigatorKey: router.navigatorKey,
            onGenerateRoute: router.generator(),
            builder: (BuildContext context, Widget child)
            {
                return Scaffold(
                    resizeToAvoidBottomInset: true,
                    body: DefaultTextStyle(
                        style: TextStyle(fontSize: 16, color: Colors.white),
                        child: SafeArea(child: child)
                    )
                ); 
            },
        );
    }
}


class ExamplePage extends StatefulWidget
{
    @override
    ExamplePageState createState() => new ExamplePageState();
}

class ExamplePageState extends State<ExamplePage>
{
    @override
    Widget build(BuildContext context)
    {
        var args = Cruiser.args<ExampleArgs>(context);

        var currentColor = args?.color ?? colors.first;

        _setUIOverlayColor(currentColor);

        var nextTransition = _getNextTransition(args?.nextTransition);
        var nextColor = _getNextColor(args?.color);

        return Container(
            color: args?.color ?? colors.first,
            child: Center(
                child: Column(
                    mainAxisAlignment: MainAxisAlignment.center,
                    crossAxisAlignment: CrossAxisAlignment.center,
                    children: [
                        ExampleButton(
                            text: nextTransition.name,
                            color: ColorConverter.darken(currentColor, 0.1),
                            onPressed: () async 
                            {
                                await router.navigate(
                                    routeName, 
                                    transitions: [nextTransition], 
                                    navigationType: NavigationType.push,
                                    args: new ExampleArgs(
                                        nextTransition: nextTransition,
                                        color: nextColor
                                    ));
                            })
                    ]
                )
            ),

        );
    }

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

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

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

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

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

    void _setUIOverlayColor(Color color)
    {
        SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
            statusBarColor: color,
            statusBarIconBrightness: Brightness.light,
            statusBarBrightness: Brightness.dark,
            systemNavigationBarColor: color,
            systemNavigationBarIconBrightness: Brightness.light
        ));
    }

}

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: 16))
            )
        );
    }
}