How to add items to the following lists?-CodePudding

I have a following list and I want to add new items to that list when I click a button. How to achieve it?

List<dynamic> list = [
    {
      'id': 0,
      'leading': 'Payment Application',
      'trailing': 'System',
    },
    {
      'id': 1,
      'leading': 'Reference Number',
      'trailing': 'SYM12113OI',
    },
    {
      'id': 2,
      'leading': 'Total',
      'trailing': '\$15.00',
    },
    {
      'id': 3,
      'leading': 'Details',
      'trailing': 'Civil Employment',
    },
  ];

CodePudding user response：

Try the following code:

TextButton(
  child: Text("child"),
  onPressed: () {
    list.add(value);
  }
),

CodePudding user response：

1st create a Model for Your List Object : Example:

// To parse this JSON data, do
//
//     final listModel = listModelFromJson(jsonString);

import 'dart:convert';

List<ListModel> listModelFromJson(String str) => List<ListModel>.from(json.decode(str).map((x) => ListModel.fromJson(x)));

String listModelToJson(List<ListModel> data) => json.encode(List<dynamic>.from(data.map((x) => x.toJson())));

class ListModel {
    ListModel({
        this.id,
        this.leading,
        this.trailing,
    });

    int id;
    String leading;
    String trailing;

    factory ListModel.fromJson(Map<String, dynamic> json) => ListModel(
        id: json["id"],
        leading: json["leading"],
        trailing: json["trailing"],
    );

    Map<String, dynamic> toJson() => {
        "id": id,
        "leading": leading,
        "trailing": trailing,
    };
}

Now You can define your List Like this:

List<ListModel> _list = [];

For Add Data In your List you can do :

_list.add(ListModel(id:1022,leading:"leading name",trailing:"training part "));