How to transfer Map content to a button? - flutter

Question

I have 3 Maps containing images and a key. I would like to transfer their contents to the columns in the buttons as an image.
I have a few questions.
Did I write the images in the Map correctly ? They are stored in my Resources folder in the iconImage file.
How do I get the recorded images in the button (each button has its own value without repetitions, the order is not important)
And how can I click on the buttons then find out if their keys match ? (The button from the first column with the key 1 coincides with the button from the 2nd column with the key 1, and so on).
final Map <int, Image> column1;
column1: const {
1: Image(image: AssetImage(IconImages.test1)),
2: Image(image: AssetImage(IconImages.test2)),
3: Image(image: AssetImage(IconImages.test3)),
}
final Map <int, Image> column2;
column2: const {
1: Image(image: AssetImage(IconImages.test1)),
2: Image(image: AssetImage(IconImages.test2)),
3: Image(image: AssetImage(IconImages.test3)),
}
Row(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children:[
Column(
mainAxisAlignment: MainAxisAlignment.center,
mainAxisSize: MainAxisSize.min,
children: [
Container(
color: Colors.lightBlueAccent,
child: IconButton(
icon: column1.values
iconSize: 60,
onPressed: () {},),
),
SizedBox(height: 40,),
Container(
color: Colors.lightBlueAccent,
child: IconButton(
icon: column1.values
iconSize: 60,
onPressed: () {},),
),
SizedBox(height: 40,),
Container(
color: Colors.lightBlueAccent,
child: IconButton(
icon: column1.values
iconSize: 60,
onPressed: () {},),
),
],
),
Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Container(
color: Colors.red,
child: IconButton(
icon: column2.values
iconSize: 60,
onPressed: () {},),
),
SizedBox(height: 40,),
Container(
color: Colors.red,
child: IconButton(
icon: column2.values
iconSize: 60,
onPressed: () {},),
),
SizedBox(height: 40,),
Container(
color: Colors.red,
child: IconButton(
icon: column2.values
iconSize: 60,
onPressed: () {},),
),
],
),
]
);
}