liangchengyou / wow_english

  import 'dart:async';

  import 'dart:io';

  import 'package:flutter/foundation.dart';

  import 'package:flutter/material.dart';

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

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

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

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

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

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

      if (kDebugMode) {

        print('Splash读本地userEntity: $userEntity');

      }

      Timer(const Duration(seconds: 2), () {

        if (userEntity != null) {
          // todo 调一下接口判断一下有效性再往下

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

        } else {

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

        }
      });
    }
  
    @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)),

          ),
        ),
      );
    }

  }