如何在Sqflite数据库中存储此NetworkList和Map类型?我不知道表列中的确切类型是什么?
@JsonSerializable()
class NetworkResponseData {
@JsonKey(name: "status")
String status;
@JsonKey(name: "language")
Map<String, String> language;
@JsonKey(name: "networks")
NetworkList networkList;
NetworkResponseData(this.status, this.language, this.networkList,
this.siteUrlMap);
}
@JsonSerializable()
class NetworkList {
@JsonKey(name: "en")
List<Map<String, String>> en;
@JsonKey(name: "fr")
List<Map<String, String>> fr;
@JsonKey(name: "ge")
List<Map<String, String>> ge;
@JsonKey(name: "sp")
List<Map<String, String>> sp;
NetworkList(this.en, this.fr, this.ge, this.sp);
}
答案 0 :(得分:1)
所以您要寻找在Flutter中序列化对象的方法吗?在Flutter中,您可以通过导入dart:convert并使用jsonEncode / jsonDecode方法来实现;
您可以像这样手动进行操作: 假设您有一个模型。
class DoughnutModel {
String Name;
String Filling;
String Topping;
Double Price;
}
创建甜甜圈对象很简单:
DoughnutModel myDoughnut = new DoughnutModel("Glazed", "None", "Sprinkles", 2.99);
现在我们可以使用jsonEncode对其进行序列化:
String encodedDoughnut = jsonEncode(myDoughnut); //you can now store this string in the shared preferences or local storage.
并使用Decoding这样检索对象:
Map<String, dynamic> decodedDoughnut = jsonDecode(encodedDoughnut);
示例和概念均来自此链接: https://medium.com/flutter-community/serializing-your-object-in-flutter-ab510f0b8b47