liangchengyou / wow_english

  import 'package:bloc/bloc.dart';
  import 'package:flutter/cupertino.dart';
  import 'package:flutter/services.dart';

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

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

  
  import 'event.dart';

  import 'game_entity.dart';

  import 'state.dart';
  
  class GamesBloc extends Bloc<GamesEvent, GamesState> {

    late MethodChannel _methodChannel;
  

    //手动初始化4个GameEntity对象

    final List<GameEntity> _games = [

      GameEntity()
        ..id = 1

        ..imageName = 'game_food_1'.assetPng
        ..name = 'Food',

      GameEntity()
        ..id = 2

        ..imageName = 'game_halloween_2'.assetPng
        ..name = 'Halloween',

      GameEntity()
        ..id = 3

        ..imageName = 'game_toy_3'.assetPng
        ..name = 'Toy',

      GameEntity()
        ..id = 4

        ..imageName = 'game_animal_4'.assetPng
        ..name = 'Animal'

    ];
  

    List<GameEntity> get listData => _games;

    GamesBloc() : super(GamesState().init()) {
      on<InitEvent>(_init);
      on<GotoGamePageEvent>(_gotoGamePage);
    }
  
    void _init(InitEvent event, Emitter<GamesState> emit) async {

      AudioPlayerUtil.getInstance().playAudio(AudioPlayerUtilType.inMyTummy);

      emit(state.clone());
    }
  
    void _gotoGamePage(GotoGamePageEvent event, Emitter<GamesState> emit) async {

      await AudioPlayerUtil.getInstance().pause();

      try {
        _methodChannel = const MethodChannel('wow_english/game_method_channel');

        await _methodChannel
            .invokeMethod('openGamePage', {"gameId": event.gameId});

      } on PlatformException catch (e) {
        debugPrint("Failed to go to native page: '${e.message}'.");
      }
    }
  }