rsflutterapp

RankingsTab.dart (5209B)

---

 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_svg/flutter_svg.dart';
 import 'package:rs_flutter_app/components/SearchBar.dart';
 
 import '../../repos/repositories.dart';
 
 class RankingsTab extends StatefulWidget {
   final RailwayStationsRepository railwayStationsRepository;
 
   RankingsTab({@required this.railwayStationsRepository})
       : assert(railwayStationsRepository != null);
 
   @override
   RankingsTabState createState() => RankingsTabState();
 }
 
 class RankingsTabState extends State<RankingsTab>
     with AutomaticKeepAliveClientMixin<RankingsTab> {
   final filterTextController = TextEditingController();
   List<List<String>> scores;
   String filterText;
 
   List<List<String>> filter() {
     var scoresL = scores;
     if (filterText != null && filterText != "") {
       scoresL = scores
           .where(
             (score) => (filterText != null &&
                 filterText != "" &&
                 score[1].toLowerCase().contains(filterText.toLowerCase())),
           )
           .toList(growable: false);
     }
     return scoresL;
   }
 
   Future<List<List<String>>> getScores() async {
     if (scores == null) {
       List<List<String>> scoresL =
           await widget.railwayStationsRepository.getScores();
 
       scoresL.removeAt(0);
       scoresL.sort(
         (a, b) => (int.parse(b.first)).compareTo(int.parse(a.first)),
       );
       scores = scoresL;
     }
     return scores;
   }
 
   void handleFilter() {
     setState(() {
       filterText = filterTextController.text;
     });
   }
 
   @override
   initState() {
     super.initState();
     filterTextController.addListener(handleFilter);
   }
 
   @override
   void dispose() {
     filterTextController.removeListener(handleFilter);
     super.dispose();
   }
 
   @override
   Widget build(BuildContext context) {
     super.build(context);
 
     return Scaffold(
       appBar: AppBar(
         title: Text("Rangliste"),
         bottom: PreferredSize(
           preferredSize: Size.fromHeight(56),
           child: Padding(
             padding: EdgeInsets.all(8),
             child: SearchBar(
               filterTextController: filterTextController,
             ),
           ),
         ),
       ),
       body: FutureBuilder(
         future: getScores(),
         builder:
             (BuildContext context, AsyncSnapshot<List<List<String>>> snapshot) {
           if (snapshot.hasError) {
             // TODO handle error
             debugPrint(snapshot.error.toString());
           }
 
           if (!snapshot.hasData) {
             return Center(
               child: CircularProgressIndicator(),
             );
           }
 
           var filtered = filter();
 
           if (filtered == null || filtered.isEmpty) {
             return Container();
           }
 
           if (scores.isEmpty) {
             return Container();
           }
 
           return ListView.separated(
             itemCount: filtered.length,
             separatorBuilder: (BuildContext context, int index) {
               return Divider();
             },
             itemBuilder: (BuildContext context, int index) {
               if (scores
                       .indexWhere((score) => score[1] == filtered[index][1]) ==
                   0) {
                 return ListTile(
                   leading: SvgPicture.asset(
                     "assets/crown_gold.svg",
                     semanticsLabel: 'Golden Crown',
                     width: 50,
                     height: 50,
                   ),
                   title: Text(filtered[index][1]),
                 );
               } else if (scores
                       .indexWhere((score) => score[1] == filtered[index][1]) ==
                   1) {
                 return ListTile(
                   leading: SvgPicture.asset(
                     "assets/crown_silver.svg",
                     semanticsLabel: 'Silver Crown',
                     width: 50,
                     height: 50,
                   ),
                   title: Text(filtered[index][1]),
                 );
               } else if (scores
                       .indexWhere((score) => score[1] == filtered[index][1]) ==
                   2) {
                 return ListTile(
                   leading: SvgPicture.asset(
                     "assets/crown_bronze.svg",
                     semanticsLabel: 'Bronze Crown',
                     width: 50,
                     height: 50,
                   ),
                   title: Text(filtered[index][1]),
                 );
               } else {
                 return ListTile(
                   leading: SizedBox(
                     width: 50,
                     height: 50,
                     child: Center(
                       child: Text(
                         "${(scores.indexWhere((score) => score[1] == filtered[index][1]) + 1)}.",
                         style: TextStyle(
                           fontWeight: FontWeight.bold,
                         ),
                       ),
                     ),
                   ),
                   title: Text(filtered[index][1]),
                 );
               }
             },
           );
         },
       ),
     );
   }
 
   @override
   bool get wantKeepAlive => true;
 }