flutter - 从 Json 响应抖动中删除重复项

Question

我无法删除 Json 中的重复项。在下面的 Json 中，如果 title 字段具有相同的值，我需要删除重复的节点。在下面的名为“汽车”的 json 标题中重复了 3 次，我需要根据标题字段删除重复项。我按照下面的 stackoverflow 链接进行操作，但没有解决我的问题。

Remove duplicate value in dart

实际的 Json:

{
    "totalSize": 6,
    "done": true,
    "records": [{
            "attributes": {
                "type": "ContentVersion",
                "url": "https://sampleUrl"
            },
            "Id": "123456",
            "Title": "car",
            "Team_Category__c": "Vehicle"
        },
        {
            "attributes": {
                "type": "ContentVersion",
                "url": "https://sampleUrl"
            },
            "Id": "123456",
            "Title": "car",
            "Team_Category__c": "Vehicle"
        },

        {
            "attributes": {
                "type": "ContentVersion",
                "url": "https://sampleUrl"
            },
            "Id": "123456",
            "Title": "cycle",
            "Team_Category__c": "Vehicle"
        },
        {
            "attributes": {
                "type": "ContentVersion",
                "url": "https://sampleUrl"
            },
            "Id": "123456",
            "Title": "aeroplane",
            "Team_Category__c": "Vehicle"
        },
        {
            "attributes": {
                "type": "ContentVersion",
                "url": "https://sampleUrl"
            },
            "Id": "123456",
            "Title": "car",
            "Team_Category__c": "Vehicle"
        }
    ]
}

Answer 1

将 kt_dart: 添加到您的 pubspec。

然后在你的dart文件中导入它import 'package:kt_dart/kt.dart';

然后:

var json = jsonDecode(yourJsonAsString);
var records = mutableListFrom(json["records"]);
var distinct = records.distinctBy((it) => it["Title"]);