相关疑难解决方法(0)

我的 Firebase 实时数据库中有一个子数据库，如下所示：

以下是我在 Flutter 应用程序中通过 firebase 调用收到的 JSON：

{
  "gameAnalytics" : {
    "log" : {
      "20210926073039AbMc4uSXywqpK9OcusSV" : {
        "cityID" : "newYork",
        "countryCode" : "USA",
        "gameID" : "20210927065000Upper90IndnewYofootbiGZYy",
        "gamePaymentMethod" : "payAtPitch",
        "players" : {
          "umZ5ezrtI6a3UoCDWFDc3hInoNA2" : {
            "pnam" : "Mario Rest",
            "url" : "https://i.ibb.co/blahblah.jpg"
          }
        },
        "sportID" : "football",
        "status" : {
          "202109261130395laHd8h77R" : "completing, send back",
          "20210926113039BcUQ8RdbHs" : "payAtPitch",
          "20210926113039Ck9JsD1uf1" : "playersAdded"
        },
        "timeAndDateString" : "20210926073039",
        "totalCost" : 999,
        "type" : "ADD",
        "userWhoAddedID" : "umZ5ezrtI6a3UoCDWFDc3hInoNA2",
        "wantsToBeOrganizer" : true
      }, …