如何从颤振api响应中得到数组中的对象

Question

我正在尝试使用类模型集成api。下面是我的API响应。

{
"status": 1,
"message": "your rides",
"data": [
{
"id": 2,
"ride_user_id": "4",
"ride_driver_id": "2",
"pick_up": "gsdhjhsgdf",
"drop_of": "dsfbsdjbf",
"date": null,
"time": "10.55",
"status": "complete",
"created_at": "2022-06-17T09:50:25.000000Z",
"updated_at": "2022-06-17T09:56:37.000000Z",
"driver": {
"id": 2,
"name": "driver",
"vehicle_number": null,
"licence_number": null,
"state": null,
"image": null,
"notification": 1,
"created_at": "2022-06-08T16:15:12.000000Z",
"updated_at": "2022-06-08T16:15:44.000000Z"
},
"rideperson": {
"id": 4,
"name": "ab",
"vehicle_number": null,
"licence_number": null,
"state": "ascascas",
"image": "profile/1735772987889499.jfif",
"notification": 1,
"created_at": "2022-06-09T07:54:41.000000Z",
"updated_at": "2022-06-16T06:48:37.000000Z"
},
"rating": {
"id": 2,
"sender_id": null,
"reciever_id": null,
"ride_id": 2,
"rating": "4",
"created_at": "2022-06-17T09:59:38.000000Z",
"updated_at": "2022-06-17T09:59:38.000000Z"
}
}
]
}

这是我的模型

import 'dart:convert';
import 'package:flutter/foundation.dart';

MyRides rideFromJson(String str) => MyRides.fromJson(json.decode(str));
String rideToJson(MyRides data) => json.encode(data.toJson());
class MyRidesDetails {
final int id;
final String pickUp;
final String dropOff;
final String time;
final String rideUserId;
final String rideDriverId;
final List driver;
MyRidesDetails(
{required this.id,
required this.pickUp,
required this.dropOff,
required this.time,
required this.rideUserId,
required this.rideDriverId,
required this.driver

});
factory MyRidesDetails.fromJson(Map<String, dynamic> json) => MyRidesDetails(
id: json['id'],
dropOff: json['drop_of'],
pickUp: json['pick_up'],
time: json['time'],
rideUserId: json['ride_user_id'],
rideDriverId: json['ride_driver_id'],
driver: json['data']['driver']
);
Map<String, dynamic> toJson() => {
'id': id,
'drop_of': dropOff,
'pick_up': pickUp,
'time':time,
'rating':time,
'ride_user_id':rideUserId,
'ride_driver_id':rideDriverId,
'driver':driver

};
}


class MyRides {
MyRides({
required this.status,
required this.message,
required this.data,

});
int status;
String message;
List<MyRidesDetails> data;

factory MyRides.fromJson(Map<String, dynamic> json) => MyRides(
status: json["status"],
message: json["message"],
data: List<MyRidesDetails>.from(json["data"].map((x) => MyRidesDetails.fromJson(x))),

);
Map<String, dynamic> toJson() => {
"status": status,
"message": message,
"data": List<dynamic>.from(data.map((x) => x.toJson())),

};
}

下面是我如何在模型上填充数据的代码

Future getAllMyRides(role) async {
Map<String, String> headers = {
"Content-type": "application/json",
'Authorization': 'Bearer $token',
};
var url = Uri.parse(ApiPath.getAllMyRidesUrl+role);
final response = await http.get(url, headers: headers);
if (response.statusCode == 200) {
return rideFromJson(response.body).data;
} else {
throw Exception('Failed to load post');
}
}

现在的问题是我想访问这个对象

"driver": {
"id": 2,
"name": "driver",
"vehicle_number": null,
"licence_number": null,
"state": null,
"image": null,
"notification": 1,
"created_at": "2022-06-08T16:15:12.000000Z",
"updated_at": "2022-06-08T16:15:44.000000Z"
},

使用相同的模型。我的模型只访问不在对象中的数据，我想在我的模式上创建一个列表变量或其他东西，可以访问对象形式的数据。

下面是我如何在UI屏幕上调用API函数的代码

getAllMyRides() async {
setState(() {
_isLoading = true;
});
await Future.delayed(const Duration(seconds: 2), () async {
connectionMsg = await services.checkInternetConnectivity();

if (connectionMsg == "connected") {
try {
var _myRides = await services.getAllMyRides(role);
if (myRides is MyRides) {
print(_myRides.data[0].driver.id); //this should print 2
} else {
print("Unable to fetch data");
}

setState(() {
_isLoading = false;
});
} catch (e) {
print(e);
setState(() {
apiCrashed = true;
});
}
setState(() {
_isLoading = false;
});
} else if (connectionMsg == "not connected") {
AppDialogs().showInfoDialogue(context, "Internet is not working!", () {
Navigator.pop(context);
});
setState(() {
_isLoading = false;
});
}
});
}

@override
void initState() {
super.initState();
getAllMyRides();
}

请告诉我怎么做，谢谢。

Answer 1

var _myRides = await getAllMyRides();
var jsonDecoded = json.decode(_myRides);
print(jsonDecoded['data'][0]['driver']['id']);

please try this