如何在flutter redux中更新列表的属性 [英] how to update a property of a list in flutter redux

问题描述

我正在尝试更新flutter redux中的某些属性，但出现以下错误

I am trying to update some property in flutter redux but i am getting the following error

Class 'DivMatches' has no instance setter 'id='.

这是我的州立课程

class AppState {
  var demoState;
  List myMatches;

  AppState({this.demoState, this.myMatches});

  AppState copywith({demoState, myMatches}){
  return AppState(
     myMatches : myMatches ?? this.myMatches,
     demoState: demoState ?? this.demoState,
  );

 }
}

我的动作如下

class UpdateDivResult{ // update the div result by id
  dynamic id;
  UpdateDivResult(this.id);
 }

我的减速器看起来像这样

My reducer looks like this

   var newMatch = state.myMatches[0][0];
    newMatch.id = 223;

    return state.copywith(
       myMatches: newMatch
    );

请帮助.非常感谢.

推荐答案

问题是，我在json serializeble中将变量定为final.删除final将允许您更新.

The problem was, I made my variables final in json serializeble. removing final will allow you to update.

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