liangchengyou / wow_english

  import 'dart:async';

  import 'dart:io';

  import 'dart:math';

  import 'package:flutter/foundation.dart';

  import 'package:flutter/material.dart';

  import 'package:flutter/services.dart';
  import 'package:limiting_direction_csx/limiting_direction_csx.dart';

  import 'package:wow_english/common/core/app_config_helper.dart';

  import 'package:wow_english/common/core/user_util.dart';

  import 'package:wow_english/common/extension/string_extension.dart';

  import 'package:wow_english/common/request/config.dart';

  import 'package:wow_english/common/request/dao/user_dao.dart';

  import 'package:wow_english/models/user_entity.dart';

  import 'package:wow_english/route/route.dart';

  import 'package:wow_english/utils/log_util.dart';

  import 'package:wow_english/utils/sp_util.dart';

  import '../common/core/app_consts.dart';
  import '../common/widgets/webview_dialog.dart';
  

  class SplashPage extends StatelessWidget {
    const SplashPage({super.key});

  
    @override
    Widget build(BuildContext context) {
      return const TransitionView();
    }
  }
  
  class TransitionView extends StatefulWidget {
    const TransitionView({super.key});
  
    @override
    State<StatefulWidget> createState() {
      return _TransitionViewState();
    }
  }
  
  class _TransitionViewState extends State<TransitionView> {

    Future startTime() async {

      // 判断是否登录
      UserEntity? userEntity = UserUtil.getUser();

      Log.d('当前模式：kDebugMode=$kDebugMode, kProfileMode=$kProfileMode, kReleaseMode=$kReleaseMode');
      Log.d('当前API地址：${RequestConfig.baseUrl}');

      //BuildContext context = Navigator.of(context).context;
      //var currentPageName = ModalRoute.of(Navigator.of(AppRouter.context))?.settings.name;
      //Log.d('Splash读当前页面：$currentPageName');
      Log.d('Splash读本地, userEntity: $userEntity');

      int apartInMilliseconds = 0;

      // 获取系统配置信息

      AppConfigHelper.getAppConfig();

      // 调一下接口判断一下有效性再往下

      if (userEntity != null && userEntity.token != null) {
        String token = userEntity.token!;

        DateTime startTime = DateTime.now();

        await fetchNecessaryData(token);

        apartInMilliseconds = DateTime.now().difference(startTime).inMilliseconds;

      }

      int duration = max(2000 - apartInMilliseconds, 0);

      Log.d('Splash getUserInfo 耗时：${apartInMilliseconds}ms, 最终duration=$duration');

      Timer(Duration(milliseconds: duration), () {

        /*if (userEntity != null) {

          pushNamedAndRemoveUntil(AppRouteName.home, (route) => false);

        } else {

          pushNamedAndRemoveUntil(AppRouteName.login, (route) => false);

        }*/

        bool isAggreementAccepted = AppConfigHelper.getAgreementAccepted();
        if (isAggreementAccepted) {

          pushNamedAndRemoveUntil(AppRouteName.home, (route) => false);

        } else {
          showDialog(
            context: context,
            barrierDismissible: false,
            builder: (BuildContext context) {
              return WillPopScope(
                onWillPop: () => Future.value(false),
                child: WebviewDialog(
                  title: "服务条款及隐私政策",
                  webUrl: AppConsts.userPrivacyPolicyUrl,
                  leftTap: () {
                    AppConfigHelper.saveAgreementAccepted(true);
                    pushNamedAndRemoveUntil(

                        AppRouteName.home, (route) => false);

                  },
                  rightTap: () {
                    // 退出应用

                    AppConfigHelper.exitApp();

                  },
                ),
              );
            },
          );
        }

      });
    }
  

    Future<void> fetchNecessaryData(String userToken,
        {Completer<void>? completer}) async {
      completer ??= Completer<void>();

      // 获取用户信息
      try {
        UserEntity? userEntity = await UserDao.getUserInfo();
        Log.d('Splash在线更新, userEntity: $userEntity');
        if (userEntity != null) {
          userEntity.token = userToken;
          Log.d('Splash重设token, userEntity: $userEntity');
          UserUtil.saveUser(userEntity);
        }

        //todo 如果为null是否需要清除用户信息？
        completer.complete();

      } catch (e) {

        debugPrint('Splash获取用户信息异常：$e');

        //异常的话弹窗提示重试
        showDialog(
          context: context,
          barrierDismissible: false,
          builder: (BuildContext context) {
            return WillPopScope(
              onWillPop: () => Future.value(false),
              child: AlertDialog(
                title: const Text('温馨提示'),
                content: const Text('网络异常，请检查网络后重试'),
                actions: <Widget>[
                  TextButton(

                      child: const Text('退出'),
                      onPressed: () => {
                            // 关闭对话框并重试
                            Navigator.of(context).pop(),
                            AppConfigHelper.exitApp(),
                            completer?.complete(),
                          }),

                  TextButton(
                    child: const Text('重试'),
                    onPressed: () async {

                      // 关闭对话框并重试
                      Navigator.of(context).pop();
                      await fetchNecessaryData(userToken, completer: completer);
                      completer?.complete();

                    },
                  ),
                ],
              ),
            );
          },
        );
        e.logE();
      }

      // 等待completer完成，这会阻塞后续代码的执行，直到用户做出选择
      await completer.future;

    }
  

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

      init();
    }
  
    void init() async {
      await SpUtil.preInit();

      startTime();

      changeDevice();
    }
  
    void changeDevice() async {
      ///设置设备默认方向
      WidgetsFlutterBinding.ensureInitialized();
      if (Platform.isIOS) {
        await LimitingDirectionCsx.setScreenDirection(DeviceDirectionMask.Landscape);
      } else {

        await SystemChrome.setPreferredOrientations([DeviceOrientation.landscapeLeft, DeviceOrientation.landscapeRight]);

      }

    }
  

    @override
    Widget build(BuildContext context) {
      return Scaffold(

        body: Center(

          child: Container(
            decoration: BoxDecoration(
                image: DecorationImage(
                    image: AssetImage(

                      'splash'.assetGif,

                    ),

                    fit: BoxFit.fill)),

          ),
        ),
      );
    }

  }