您好我正在嘗試創建一個根據描述進行過濾的搜索欄，該過濾器正在搜索正常，但是缺少一個索引為 0 的資料，并且它被搜索欄替換了我該如何解決？如果有人知道我怎樣才能讓它只顯示我過濾的資料，當我洗掉所有資料時又回來了，非常感謝
import 'dart:convert';
import 'dart:io';
import 'package:az/Actifs.dart';
import 'package:az/SR_Details.dart';
import 'package:az/main.dart';
import 'package:badges/badges.dart';
import 'package:flutter/material.dart';
import 'package:google_fonts/google_fonts.dart';
import 'package:http/http.dart' as http;
import 'package:intl/intl.dart';
import 'class/sr.dart';
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: DataFromAPI(),
);
}
}
class DataFromAPI extends StatefulWidget {
@override
_DataFromAPIState createState() => _DataFromAPIState();
}
List<Sr> _MyAllData=[];
List<Sr> _SrForDsiplay=[];
Map<String, Color> map={
"QUEUED":Color.fromARGB(255, 255, 136, 0),
"CLOSED":Colors.grey,
"Rejeced":Colors.red,
"INPROG":Colors.green,
"PENDING":Colors.blue,
"RESOLVED":Colors.green,
"NEW":Colors.blue,
};
Map<dynamic, String> map1={
1 :"Urgent",
2:"High",
3:"Medium",
4:"Low",
};
class _DataFromAPIState extends State<DataFromAPI> {
String title_string = "Liste des SR";
@override
void initState() {
loadData().then((value) {
setState(() {
_MyAllData.addAll(value);
_SrForDsiplay=_MyAllData;
print(_MyAllData[0].attributes.description!.content);
print(_MyAllData[1].attributes.description!.content);
});
});
super.initState();
}
void setappbar(numsr) {
setState((){
title_string =numsr.toString();
});
}
Future<List<Sr>> loadData() async {
try {
var response = await http.get(Uri.parse(
'http://192.168.1.59:9080/maxrest/rest/mbo/sr/?_lid=maxadmin&_lpwd=maxadmin&_format=json'));
if (response.statusCode == 200) {
//print(response.body);
final jsonBody = json.decode(response.body);
Demandes data = Demandes.fromJson(jsonBody);
final srAttributes = data.srMboSet.sr;
title_string='Liste des SR : ${srAttributes.length.toString()}';
return srAttributes;
}
} catch (e) {
throw Exception(e.toString());
}
throw Exception("");
}
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner:false,
home: new Scaffold( appBar: AppBar(
title: Text(title_string),
leading: IconButton(
icon: Icon(Icons.arrow_back), onPressed: () { Navigator.push(
context, MaterialPageRoute(builder: (context) => Home())); },
),
),
body: FutureBuilder<List<Sr>?>(
future: loadData(),
builder: (context, snapshot) {
if (!snapshot.hasData) {
return SizedBox(
height: MediaQuery.of(context).size.height / 1.3,
child: Center(
child: CircularProgressIndicator(),
),
);
} else {
return new ListView.builder(
itemCount: snapshot.data!.length,
itemBuilder: ((_, index) {
return index == 0
? _searchbar()
:
new ListTile(
title: new Card(
margin: new EdgeInsets.symmetric(
vertical: 2.0, horizontal: 8.0),
elevation: 10,
child: new ListTile(
title: new Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Padding(padding: new EdgeInsets.all(2.0)),
Row(children :[
Container(
decoration: BoxDecoration(
border: Border.all(
color: Color.fromARGB(255, 255, 255, 255),
),
color: map['${snapshot.data![index].attributes.status.content}'],
borderRadius: BorderRadius.all(Radius.circular(20)),
),
child:Text(' ${snapshot.data![index].attributes.status.content} '),
),
Container(child: Text(' '),),
Container(
decoration: BoxDecoration(
border: Border.all(
color: Color.fromARGB(255, 255, 255, 255),
),
color:Colors.grey,
borderRadius: BorderRadius.all(Radius.circular(20)),
),
child:Text(
" High "),
),
],
),
SizedBox(
height: 8,
),
Row(children: <Widget>[
Expanded( child: Container(child: Text('${snapshot.data![index].attributes.description?.content}',style: GoogleFonts.openSans(
textStyle: TextStyle(
fontSize: 16,
fontWeight: FontWeight.w600)),),),),
Expanded(child: Container(child:Text( ' ${snapshot.data![index].attributes.ticketid.content}',style: GoogleFonts.openSans(
textStyle: TextStyle(
fontSize: 14,
fontWeight: FontWeight.w400)),)))
],),
new Divider(
color: Color.fromARGB(255, 110, 109, 109),
),
Text(
'Reported : ${DateFormat.yMMMMEEEEd().format(DateTime.parse('${snapshot.data![index].attributes.statusdate.content}' ))}' ,
style: GoogleFonts.openSans(
textStyle: TextStyle(
fontSize: 16,
fontWeight: FontWeight.w400)),
),
new Text(
'Reported by : ${snapshot.data![index].attributes.reportedby?.content}',style: GoogleFonts.openSans(
textStyle: TextStyle(
fontSize: 16,
fontWeight: FontWeight.w400)),
),
Row(children: [new Image(image: AssetImage('assets/courroi.png'), width: 20),
Text(
'${snapshot.data![index].attributes.assetnum?.content}'),], ),
Row(children: [new Image(image: AssetImage('assets/location1.png'), width: 20),
Text(
'${snapshot.data![index].attributes.assetsiteid?.content}'),], ) ,
Divider(
color: Color.fromARGB(255, 110, 109, 109),
),
Row(children:[
Expanded(child: Badge(
position: BadgePosition.topEnd(top: -8, end: 20),
badgeColor: Colors.grey,
badgeContent: Text('1'),
child :IconButton(icon :Icon(Icons.file_present_rounded), padding: const EdgeInsets.all(0),
onPressed: () {
},),
)
),
Expanded(child: IconButton (
icon: Icon(Icons.file_copy),
onPressed: () { },
),),
Expanded(child: IconButton(onPressed:() {
}, icon: Icon(Icons.delete)) )
],)
],
),
trailing: Icon(Icons.arrow_forward_ios_rounded),
),
),
onTap: () {
/* Navigator.push(
context,MaterialPageRoute(builder: (context) =>SRDetail()),
);*/
}
);
}),
);
}
},
),
),
);
}
_searchbar() {
return Padding(
padding: const EdgeInsets.all(8.0),
child: TextField(
decoration:
InputDecoration(icon: Icon(Icons.search), hintText: "Enter id or description"),
onChanged: (text) {
text=text.toLowerCase();
print(text);
setState(() {
_MyAllData =_MyAllData.where((srAttributes) {
var srDescription = srAttributes.attributes.description!.content.toString().toLowerCase();
print(srDescription);
return srDescription.contains(text);
}).toList();
});
},
),
);
}
}
uj5u.com熱心網友回復：
負責的代碼是這樣的：
return index == 0
? _searchbar()
:
您基本上是用搜索欄替換第一項（索引為 0 的項）。我建議將您的 ListView 放入包含 2 個子項、搜索欄和 ListView 的列中。
uj5u.com熱心網友回復：
你們所要做的就是將搜索欄放在他自己的列或listview中就是這樣:)或listview因為它會給你一個錯誤底部超載像素
轉載請註明出處，本文鏈接：https://www.uj5u.com/yidong/516819.html
標籤：扑镖