Flutter 有没有一种方法可以从flifter中的单个JSON创建单独的多个列表？

下面是我从服务器获取的JSON。现在，我必须基于

docgroup

创建一个单独的列表。假设

docgroup

有两个相同的PAN卡值。因此，我必须创建一个

docgroup

列表，该列表的值为PAN Card。所以我真正想要的是，首先我们必须检查以找到类似的

docgroup

值，并创建一个列表。 先谢谢你

[
  {
    "name": "Upload front side",
    "information": "Should match PAN no. mentioned on IEC copy and self attested",
    "docgroup": "PAN Card",
    "status": "Active",
    "requiredStatus": 0,
    "stage": 1,
    "type": 0,
    "extension": "string",
    "createdBy": 0,
    "createdAt": "2021-06-08 04:46:00.822",
    "lastupdatedBy": 0,
    "lastUpdatedAt": "2021-06-08 04:46:00.822",
    "id": 1,
    "countryId": 1
  },
  {
    "name": "Upload back side",
    "information": "Should match PAN no. mentioned on IEC copy and self attested",
    "docgroup": "PAN Card",
    "status": "Active",
    "requiredStatus": 0,
    "stage": 1,
    "type": 0,
    "extension": "string",
    "createdBy": 0,
    "createdAt": "2021-06-08 04:46:00.822",
    "lastupdatedBy": 0,
    "lastUpdatedAt": "2021-06-08 04:46:00.822",
    "id": 2,
    "countryId": 1
  },
  {
    "name": "Upload IEC copy",
    "information": "Please upload IEC copy (self attested)",
    "docgroup": "IEC Copy",
    "status": "Active",
    "requiredStatus": 0,
    "stage": 1,
    "type": 0,
    "extension": "string",
    "createdBy": 0,
    "createdAt": "2021-06-08 04:46:00.822",
    "lastupdatedBy": 0,
    "lastUpdatedAt": "2021-06-08 04:46:00.822",
    "id": 3,
    "countryId": 1
  },
  {
    "name": "Upload address proof",
    "information": "Please upload latest electricity bill/ telephone bill (any 1)",
    "docgroup": "Office address proof",
    "status": "Active",
    "requiredStatus": 0,
    "stage": 1,
    "type": 0,
    "extension": "string",
    "createdBy": 0,
    "createdAt": "2021-06-08 04:46:00.822",
    "lastupdatedBy": 0,
    "lastUpdatedAt": "2021-06-08 04:46:00.822",
    "id": 4,
    "countryId": 1
  }
]

---

您可以使用

List.where（）

根据某些条件对列表进行分组/筛选

对于你的情况，看看这个

List panCardList=jsonList.where（（json）=>json['docgroup']=='PAN Card'）；
List otherCardList=jsonList.where（（json）=>json['docgroup']！='PAN Card'）；