Change url using SearchDelegate - json

Question

Flutter
I want to change the end of the url in my project, I used SearchDelegate for this, but I can't change it, my codes are as follows
Search code
enter code here
class Arama extends SearchDelegate {
Future<List<Model>>? apilistfuture;
#override
List<Widget>? buildActions(BuildContext context) {
return [
IconButton(
onPressed: () {
query = '';
},
icon: const Icon(
Icons.close,
color: Colors.red,
),
),
];
}
#override
Widget? buildLeading(BuildContext context) {
return IconButton(
onPressed: () {
Navigator.pop(context);
},
icon: const Icon(
Icons.arrow_back_ios,
color: Colors.black,
),
);
}
#override
Widget buildResults(BuildContext context) {
return FutureBuilder<List<Model>>(
future: apilistfuture,
builder: (context, snapshot) {
if (snapshot.hasData) {
List<Model> _listem = snapshot.data!;
return ListView.builder(
itemCount: _listem.length,
itemBuilder: (context, index) {
var oankiApi = _listem[index];
return ListTile(
title: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text('Tanım: ${oankiApi.description}'),
Text('Ekran Senbol: ${oankiApi.displaySymbol}'),
Text('Senbol: ${oankiApi.symbol}'),
Text('Tip: ${oankiApi.type}'),
],
),
);
},
);
} else if (snapshot.hasError) {
return const Center(
child: Text('hata'),
);
} else {
return const Center(
child: CircularProgressIndicator(),
);
}
},
);
}
#override
Widget buildSuggestions(BuildContext context) {
return const Center(
child: Text(
'Arama..',
style: TextStyle(
fontWeight: FontWeight.bold,
),
),
);
}
}
home code
class Home extends StatefulWidget {
const Home({Key? key}) : super(key: key);
#override
State<Home> createState() => _HomeState();
}
class _HomeState extends State<Home> {
Future<List<Model>>? apilistfuture;
#override
void initState() {
apilistfuture = Api.getapiData();
super.initState();
}
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
actions: [
IconButton(
onPressed: () {
showSearch(context: context, delegate: Arama());
},
icon: const Icon(Icons.search),
),
],
backgroundColor: Colors.blue,
),
body: FutureBuilder<List<Model>>(
future: apilistfuture,
builder: (context, snapshot) {
if (snapshot.hasData) {
List<Model> _listem = snapshot.data!;
return ListView.builder(
itemCount: _listem.length,
itemBuilder: (context, index) {
var oankiApi = _listem[index];
return ListTile(
title: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text('Tanım: ${oankiApi.description}'),
Text('Ekran Senbol: ${oankiApi.displaySymbol}'),
Text('Senbol: ${oankiApi.symbol}'),
Text('Tip: ${oankiApi.type}'),
],
),
);
},
);
} else if (snapshot.hasError) {
return const Center(
child: Text('hata'),
);
} else {
return const Center(
child: CircularProgressIndicator(),
);
}
},
),
);
}
}
In the project, expressions such as string, int will come to the place where the value is written at the end of the url, how can I bring the value?
api code
class Api {
static Future<List<Model>> getapiData({String? deger}) async {
String url = 'http://10.0.2.2:5000/symbol_lookup?search=${deger}';
List<Model> list = [];
var result = await Dio().get(url);
var apiList = jsonDecode(result.data)['result'];
if (apiList is List) {
list = apiList.map((e) => Model.fromJson(e)).toList();
//sonradan eklendi
if (deger != null) {
list = list
.where((element) => element.description!
.toLowerCase()
.contains(deger.toLowerCase()))
.toList();
}
} else {
return [];
}
debugPrint(list.length.toString());
return list;
}
}
Int, string texts will be followed by an equal sign at the end of the url, for example, values ​​such as 'https://login=search' will come. Could you help me find the problem? I tried a few things but it comes up blank
enter image description here
enter image description here
As you can see in the pictures, I get an error when I call.