info_tren/lib/main.dart

import 'dart:io' show Platform;

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:info_tren/train_info_page/train_info.dart';
import 'package:info_tren/train_info_page/train_info_cupertino.dart';
import 'package:info_tren/train_info_page/train_info_material.dart';
import 'package:info_tren/train_info_page/train_info_prompt.dart';



void main() => runApp(StartPoint());

class StartPoint extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    if (Platform.isAndroid) {
      return MaterialApp(
        title: 'Info Tren',
        theme: ThemeData(
          primarySwatch: Colors.blue,
          brightness: Brightness.dark,
          primaryColor: Colors.blue.shade600,
          accentColor: Colors.blue.shade700,
        ),
//        home: MainPageMaterial(),
        routes: {
          Navigator.defaultRouteName: (context) {
            return MainPageMaterial();
          },
          TrainInfoPromptCommon.routeName: (context) {
            return TrainInfoPromptMaterial();
          },
          TrainInfo.routeName: (context) {
            return TrainInfoMaterial(
              trainNumber: ModalRoute.of(context).settings.arguments as int,
            );
          },
        },
      );
    }
    else if (Platform.isIOS) {
      return CupertinoApp(
        title: "Info Tren",
        theme: CupertinoThemeData(
          primaryColor: Colors.blue.shade600,
          brightness: Brightness.dark,
        ),
//        home: MainPageCupertino(),
        routes: {
          Navigator.defaultRouteName: (context) {
            return MainPageCupertino();
          },
          TrainInfoPromptCommon.routeName: (context) {
            return TrainInfoPromptCupertino();
          },
          TrainInfo.routeName: (context) {
            return TrainInfoCupertino(
              trainNumber: ModalRoute.of(context).settings.arguments as int,
            );
          },
        }
      );
    }
    return null;
  }
}

mixin MainPageAction {
  onTrainInfoPageInvoke(BuildContext context) {
    Navigator.of(context).pushNamed(TrainInfoPromptCommon.routeName);
  }

  onStationBoardPageInvoke(BuildContext context) {

  }

  onRoutePlanPageInvoke(BuildContext context) {

  }
}

class MainPageMaterial extends StatelessWidget with MainPageAction {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Info Tren"),
        centerTitle: true,
      ),
      body: SafeArea(
        child: Center(
          child: Column(
            mainAxisSize: MainAxisSize.min,
            children: <Widget>[
              RaisedButton(
                child: Text(
                  "Informații despre tren",
                  style: Theme.of(context).textTheme.button.copyWith(fontSize: 18),
                ),
                onPressed: () {
                  onTrainInfoPageInvoke(context);
                },
              ),
              RaisedButton(
                child: Text(
                  "Tabelă plecari/sosiri",
                  style: Theme.of(context).textTheme.button.copyWith(fontSize: 18),
                ),
                onPressed: () {
                  onStationBoardPageInvoke(context);
                },
              ),
              RaisedButton(
                child: Text(
                  "Planificare rută",
                  style: Theme.of(context).textTheme.button.copyWith(fontSize: 18),
                ),
                onPressed: () {
                  onRoutePlanPageInvoke(context);
                },
              )
            ].map((w) => Padding(
              padding: const EdgeInsets.fromLTRB(4, 2, 4, 2),
              child: SizedBox(
                width: double.infinity,
                child: w,
              ),
            )).toList(),
          ),
        ),
      ),
    );
  }
}

class MainPageCupertino extends StatelessWidget with MainPageAction {
  @override
  Widget build(BuildContext context) {
    return CupertinoPageScaffold(
      navigationBar: CupertinoNavigationBar(
        middle: Text("Info Tren"),
      ),
      child: SafeArea(
        child: Center(
          child: Column(
            mainAxisSize: MainAxisSize.min,
            children: <Widget>[
              CupertinoButton.filled(
                child: Text("Informații despre tren"),
                onPressed: () {
                  onTrainInfoPageInvoke(context);
                },
              ),
              CupertinoButton.filled(
                child: Text("Tabelă plecari/sosiri"),
                onPressed: () {
                  onStationBoardPageInvoke(context);
                },
              ),
              CupertinoButton.filled(
                child: Text("Planificare rută"),
                onPressed: () {
                  onRoutePlanPageInvoke(context);
                },
              ),
            ].map((w) => Padding(
              padding: const EdgeInsets.fromLTRB(4, 2, 4, 2),
              child: SizedBox(
                width: double.infinity,
                child: w,
              ),
            )).toList(),
          ),
        ),
      ),
    );
  }
}