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import 'dart:async';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:event_bus/event_bus.dart';
import 'package:flutter_localizations/flutter_localizations.dart';
import 'package:fluttertoast/fluttertoast.dart';
import 'package:gsy_github_app_flutter/common/event/HttpErrorEvent.dart';
import 'package:gsy_github_app_flutter/common/localization/GSYLocalizationsDelegate.dart';
import 'package:gsy_github_app_flutter/common/redux/GSYState.dart';
import 'package:gsy_github_app_flutter/common/model/User.dart';
import 'package:gsy_github_app_flutter/common/style/GSYStyle.dart';
import 'package:gsy_github_app_flutter/common/utils/CommonUtils.dart';
import 'package:gsy_github_app_flutter/page/HomePage.dart';
import 'package:gsy_github_app_flutter/page/LoginPage.dart';
import 'package:gsy_github_app_flutter/page/WelcomePage.dart';
import 'package:flutter_redux/flutter_redux.dart';
import 'package:redux/redux.dart';
import 'package:gsy_github_app_flutter/common/net/Code.dart';
void main() {
runApp(new FlutterReduxApp());
PaintingBinding.instance.imageCache.maximumSize = 100;
}
class FlutterReduxApp extends StatelessWidget {
/// 创建Store，引用 GSYState 中的 appReducer 实现 Reducer 方法
/// initialState 初始化 State
final store = new Store<GSYState>(
appReducer,
///初始化数据
initialState: new GSYState(
userInfo: User.empty(),
eventList: new List(),
trendList: new List(),
themeData: new ThemeData(
primarySwatch: GSYColors.primarySwatch,
platform: TargetPlatform.iOS//滑动返回
),
locale: Locale('zh', 'CH')),
);
FlutterReduxApp({Key key}) : super(key: key);
@override
Widget build(BuildContext context) {
/// 通过 StoreProvider 应用 store
return new StoreProvider(
store: store,
child: new StoreBuilder<GSYState>(builder: (context, store) {
return new MaterialApp(
///多语言实现代理
localizationsDelegates: [
GlobalMaterialLocalizations.delegate,
GlobalWidgetsLocalizations.delegate,
GSYLocalizationsDelegate.delegate,
],
locale: store.state.locale,
supportedLocales: [store.state.locale],
theme: store.state.themeData,
routes: {
WelcomePage.sName: (context) {
store.state.platformLocale = Localizations.localeOf(context);
return WelcomePage();
},
HomePage.sName: (context) {
///通过 Localizations.override 包裹一层，
return new GSYLocalizations(
child: new HomePage(),
);
},
LoginPage.sName: (context) {
return new GSYLocalizations(
child: new LoginPage(),
);
},
});
}),
);
}
}
class GSYLocalizations extends StatefulWidget {
final Widget child;
GSYLocalizations({Key key, this.child}) : super(key: key);
@override
State<GSYLocalizations> createState() {
return new _GSYLocalizations();
}
}
class _GSYLocalizations extends State<GSYLocalizations> {
StreamSubscription stream;
@override
Widget build(BuildContext context) {
return new StoreBuilder<GSYState>(builder: (context, store) {
///通过 StoreBuilder 和 Localizations 实现实时多语言切换
return new Localizations.override(
context: context,
locale: store.state.locale,
child: widget.child,
);
});
}
@override
void initState() {
super.initState();
stream = Code.eventBus.on<HttpErrorEvent>().listen((event) {
errorHandleFunction(event.code, event.message);
});
}
@override
void dispose() {
super.dispose();
if(stream != null) {
stream.cancel();
stream = null;
}
}
errorHandleFunction(int code, message) {
switch (code) {
case Code.NETWORK_ERROR:
Fluttertoast.showToast(msg: CommonUtils.getLocale(context).network_error);
break;
case 401:
Fluttertoast.showToast(msg: CommonUtils.getLocale(context).network_error_401);
break;
case 403:
Fluttertoast.showToast(msg: CommonUtils.getLocale(context).network_error_403);
break;
case 404:
Fluttertoast.showToast(msg: CommonUtils.getLocale(context).network_error_404);
break;
case Code.NETWORK_TIMEOUT:
//超时
Fluttertoast.showToast(msg: CommonUtils.getLocale(context).network_error_timeout);
break;
default:
Fluttertoast.showToast(msg: CommonUtils.getLocale(context).network_error_unknown + " " + message);
break;
}
}
}