Hibok/lib/home/realtimehelper/translation_butler_page.dart

import 'package:cached_network_image/cached_network_image.dart';
import 'package:chat/data/UserData.dart';
import 'package:chat/data/chat_data_mgr.dart';
import 'package:chat/data/group_data_mgr.dart';
import 'package:chat/home/add_friend.dart';
import 'package:chat/home/group_announcement.dart';
import 'package:chat/home/group_manage_page.dart';
import 'package:chat/models/group_info_model.dart';
import 'package:chat/models/ref_name_provider.dart';
import 'package:chat/utils/MessageMgr.dart';
import 'package:chat/utils/group_member_model.dart';
import 'package:chat/utils/msgHandler.dart';
import 'package:chat/utils/screen.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:oktoast/oktoast.dart';
import 'package:provider/provider.dart';

import '../../data/constants.dart';
import '../../generated/i18n.dart';
import '../../utils/CustomUI.dart';
import '../../utils/FullWithButton.dart';
import '../../utils/app_navigator.dart';
import '../create_group_view.dart';
import 'package:chat/utils/PopUpMenu.dart' as myPop;
class TranslationButlerPage extends StatefulWidget {
  final GroupInfoModel groupInfoModel;

  TranslationButlerPage({Key key, this.groupInfoModel}) : super(key: key);

  @override
  State<StatefulWidget> createState() {
    return TranslationButlerPageState();
  }
}

class TranslationButlerPageState extends State<TranslationButlerPage> {


  int curToLang = 1;
  int curSourceLang = UserData().language;
  List langList;
  @override
  void initState() {
    super.initState();


  }

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

    langList = [
      I18n.of(context).english,
      I18n.of(context).Vietnamese,
      I18n.of(context).traditional_Chinese,
      I18n.of(context).Simplified_Chinese,
      I18n.of(context).Korean,
      I18n.of(context).Japanese,
    ];
  }

  @override
  void dispose() {
//    MessageMgr().off('Update Group Info', updateGroupInfo);
    super.dispose();
  }

  _langPopMenu(bool isSource) {
    var curIndex = isSource ? curSourceLang : curToLang;

    return myPop.PopupMenuButton(
        child: Container(
          child: Row(
            children: <Widget>[
              fixedText(langList[curIndex], color: Colors.black, fontSize: 16),
              Icon(IconData(0xe63b, fontFamily: Constants.IconFontFamily),
                  color: Colors.grey)
            ],
          ),
        ),
        offset: Offset(0, 100),
        onSelected: (int index) {
          if (curIndex != index) {
            if (isSource) {
              curSourceLang = index;
            } else {
              curToLang = index;
            }
            print('更换翻译语言');
            setState(() {});
          }
        },
        itemBuilder: (BuildContext context) {
          return List<myPop.PopupMenuItem<int>>.generate(langList.length,
                  (int i) {
                return myPop.PopupMenuItem(
                  child: Container(
                    alignment: Alignment.center,
                    color: Colors.white,
                    padding: EdgeInsets.symmetric(vertical: 10, horizontal: 10),
                    child: Text(langList[i],
                        textScaleFactor: 1.0,
                        maxLines: 1,
                        style: TextStyle(
                            color: i == curIndex
                                ? Colors.blueAccent
                                : Color(AppColors.AppBarColor),
                            fontSize: 14)),
                  ),
                  value: i,
                );
              });
        });
  }


  @override
  Widget build(BuildContext context) {

    Widget appBar = AppBar(
      backgroundColor: AppColors.NewAppbarBgColor,
      title:   Text(
        I18n.of(context).translation_butler,
        textScaleFactor: 1.0,
        style: TextStyle(color: AppColors.NewAppbarTextColor),
      ),
//      leading: CustomUI.buildCustomLeading(context),
      centerTitle: true,
    );

    return Scaffold(
      appBar: appBar,
      body: SafeArea(
        child: ListView(
          children: <Widget>[

            Text(
              I18n.of(context).translation_butler_tips,
              textScaleFactor: 1.0,
              style: TextStyle(color: AppColors.NewAppbarTextColor),
            ),



            Text(
              I18n.of(context).choose_language,
              textScaleFactor: 1.0,
              style: TextStyle(color: AppColors.NewAppbarTextColor),
            ),

            SizedBox(
              height: 12,
            ),

            Text(
              I18n.of(context).travel_butler,
              textScaleFactor: 1.0,
              style: TextStyle(color: AppColors.NewAppbarTextColor),
            ),


            Column(
              mainAxisSize: MainAxisSize.min,
              children: <Widget>[
                _langPopMenu(true),
                SizedBox(width: 10),
                InkWell(
                  onTap: () {
                    var temp = curSourceLang;
                    curSourceLang = curToLang;
                    curToLang = temp;
                    setState(() {});
                  },
                  child: Container(
                    child: Icon(
                      IconData(0xe669, fontFamily: Constants.IconFontFamily),
                      size: 12,
                    ),
                    padding: EdgeInsets.symmetric(vertical: 5, horizontal: 5),
                  ),
                ),
                SizedBox(width: 20),
                _langPopMenu(false),
              ],
            ),

            RaisedButton(color: Colors.blue,child: Text(I18n.of(context).translation_butler_call),onPressed: (){
              showToast('呼叫管家${I18n.of(context).translation_butler_call}');
            })

          ],
        ),
      ),
    );
  }

}