fcs/lib/pages/splash.dart

import 'dart:async';
import 'dart:io' show Platform;
import 'dart:io';

import 'package:flutter/material.dart';
import 'package:google_api_availability/google_api_availability.dart';
import 'package:logging/logging.dart';
import 'package:provider/provider.dart';
import 'package:fcs/model/main_model.dart';
import 'package:fcs/model/shared_pref.dart';
import 'package:fcs/theme/theme.dart';
import 'package:fcs/widget/local_text.dart';
import 'package:fcs/widget/localization/app_translations.dart';

class SplashScreen extends StatefulWidget {
  @override
  _SplashScreenState createState() => new _SplashScreenState();
}

class _SplashScreenState extends State<SplashScreen> {
  final log = Logger('_SplashScreenState');

  bool _loaded = false;
  bool _isSupport = false;
  bool _isGoogleService = true;
  bool _isLogin = false;
  bool _isAgree = false;
  bool _hasEmail = false;
  bool _isOnline = true;
  Timer timer;

  startTime() async {
    var _duration = new Duration(milliseconds: 500);
    this.timer = new Timer.periodic(_duration, navigationPage);
  }

  void navigationPage(Timer timer) async {
    if (!_isOnline) {
      return;
    }

    // GooglePlayServicesAvailability availability = await GoogleApiAvailability
    //     .instance
    //     .checkGooglePlayServicesAvailability(true);
    // log.info("GooglePlaysServcie Result1:$availability");
    // if (availability != GooglePlayServicesAvailability.success &&
    //     Platform.isAndroid) {
    //   timer.cancel();
    //   setState(() {
    //     _isGoogleService = false;
    //   });
    //   return;
    // }

    if (_loaded) {
      timer.cancel();

              Navigator.of(context).pushReplacementNamed('/home');
      // if (_isSupport) {
      //   if (_isLogin) {
      //     if (!_isAgree) {
      //       await Navigator.of(context).pushNamed('/term');
      //       startTime();
      //     } else {
      //       bool skipped = await SharedPref.getSkippedRecoverEmail();
      //       skipped = skipped ?? false;
      //       if (!this._hasEmail && !skipped) {
      //         Navigator.of(context).pushReplacementNamed('/email');
      //       } else {
      //       }
      //     }
      //   } else {
      //     Navigator.of(context).pushReplacementNamed('/welcome');
      //   }
      // }
    }
  }

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

  void dispose() {
    super.dispose();
    if (timer.isActive) timer.cancel();
  }

  @override
  Widget build(BuildContext context) {
    MainModel mainModel = Provider.of<MainModel>(context);

    this._loaded = mainModel.isLoaded;
    this._isSupport = mainModel.isSupport();
    this._isLogin = mainModel.isLogin();
    this._isAgree = mainModel.agreedTerm();
    this._hasEmail = mainModel.hasEmail();
    this._isOnline = mainModel.isOnline;

    return new Scaffold(
      backgroundColor: Colors.white,
      body: new Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            new Image.asset(
              "assets/logo.png",
              width: 180,
            ),
            SizedBox(height: 50),
            CircularProgressIndicator(
              valueColor: new AlwaysStoppedAnimation<Color>(primaryColor),
            ),
            SizedBox(height: 30),
            _isOnline
                ? Container()
                : Column(
                    children: <Widget>[
                      LocalText(context, "offline.status"),
                    ],
                  ),
            Text(_isGoogleService ? "" : "Google Play service not found."),
            Text(
                _loaded
                    ? (!_isSupport
                        ? "Version outdated, please update your app!"
                        : "")
                    : AppTranslations.of(context).text("load"),
                style: TextStyle(
                    color: primaryColor, fontWeight: FontWeight.bold)),
          ],
        ),
      ),
    );
  }
}