how to initialize a map in flutter/dart with widgets

Question

what i am trying to is have containers widget to have unique id so that i can uniquely identify them i have tried :

  Map box={
    1:Container(),
    2:Container(),
    3:Container(),
  };

  Map box={
    1:Container(),
    2:Container(),
    3:Container(),
  };

Column(
        mainAxisAlignment: MainAxisAlignment.start,
        children: [
          box[1],
        ],
      ),

Column(
        mainAxisAlignment: MainAxisAlignment.start,
        children:[
          box[1],
        ],
      ),

tried both

is there any way to do this .

Cristiano Haas · Answer

I believe you are trying to use List

Define:

List list = [Container(), Container(), Container()];

Use:

Column(
  children: [list[0]],
);