How to compare multiple values in list.where - flutter

Question

I want to multiple values in a List.
For example I have below json which I decode in a customList List :
"cars": [
{ "name":"Ford", "models":[ "Fiesta", "Focus", "Mustang" ] },
{ "name":"BMW", "models":[ "320", "X3", "X5" ] },
{ "name":"Fiat", "models":[ "500", "Panda" ] }
]
I want to get the updated list when user searches for some keyword. The keywords can also contain name of car or model. How can I do this. Below is the code where I am successfully searching in names only.
List<Cars> updatedList = List<Cars>();
_onChanged(String value) {
setState(() {
updatedList = carsList
.where((string) => string.name.contains(value.toLowerCase()))
.toList();
});
}

Answer 1

class HomeState extends State<Home> {
Map carsMap = {
"cars": [
{
"name": "Ford",
"models": ["Fiesta", "Focus", "Mustang"]
},
{
"name": "BMW",
"models": ["320", "X3", "X5"]
},
{
"name": "Fiat",
"models": ["500", "Panda"]
}
]
};
List<Map> carsList = [];
String query1 = '';
#override
void initState() {
super.initState();
carsList = carsMap['cars'];
}
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Seperate List'),
),
body: Container(
padding: EdgeInsets.fromLTRB(5, 10, 5, 10),
child: Column(mainAxisSize: MainAxisSize.min, children: [
TextField(
onChanged: (s) {
query1 = s;
},
decoration: InputDecoration(
hintText: 'Filter Seacrh...',
suffixIcon: IconButton(
icon: Icon(Icons.search, color: Colors.black),
onPressed: () {
showFiltered();
}))),
ListView.builder(
shrinkWrap: true,
itemCount: carsList.length,
itemBuilder: (con, ind) {
return ListTile(
title: Text(carsList[ind]['name'],
style: TextStyle(
color: Colors.black,
)));
})
])));
}
showFiltered() {
List<Map> updatedList = carsList.where(
(m) => m.toString().toLowerCase().contains(query1.toLowerCase())).toList();
showDialog(
context: context,
builder: (con) {
return Dialog(
child: ListView.builder(
shrinkWrap: true,
itemCount: updatedList.length,
itemBuilder: (con, ind) {
return ListTile(
title: Text(updatedList[ind]['name'],
style: TextStyle(
color: Colors.black,
)));
}));
});
}
}