Files
FlutterUnit/lib/blocs/widgets/widgets_bloc.dart
2020-11-17 09:37:18 +08:00

51 lines
1.4 KiB
Dart

import 'dart:math';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:flutter_unit/app/enums.dart';
import 'package:flutter_unit/app/res/cons.dart';
import 'package:flutter_unit/repositories/itf/widget_repository.dart';
import 'widgets_event.dart';
import 'widgets_state.dart';
/// create by 张风捷特烈 on 2020-03-03
/// contact me by email 1981462002@qq.com
/// 说明:
class WidgetsBloc extends Bloc<WidgetsEvent, WidgetsState> {
final WidgetRepository repository;
WidgetsBloc({@required this.repository});
@override
WidgetsState get initialState => WidgetsLoading();
Color get activeHomeColor {
if (state is WidgetsLoaded) {
return Color(Cons.tabColors[(state as WidgetsLoaded).activeFamily.index]);
}
return Color(Cons.tabColors[0]);
}
@override
Stream<WidgetsState> mapEventToState(WidgetsEvent event) async* {
if (event is EventTabTap) {
yield* _mapLoadWidgetToState(event.family);
}
}
Stream<WidgetsState> _mapLoadWidgetToState(WidgetFamily family) async* {
yield WidgetsLoading();
try {
final widgets = await this.repository.loadWidgets(family);
yield WidgetsLoaded(widgets: widgets, activeFamily: family);
} catch (err) {
print(err);
yield WidgetsLoadFailed(err.toString());
}
}
}