Flutter nested Rows MainAxisAlignment - flutter

Question

I want to do this :
But here is what I actually got :
Here is my code :
Row itemTransaction(BuildContext context, Transaction transaction) {
/// This is the function that will build each item of our transaction list.
return new Row(
children: <Widget>[
new Container(
width: MediaQuery.of(context).size.width / 6,
height: MediaQuery.of(context).size.width / 6,
child: new Image.asset(
(transaction.sent) ? "images/tx_output.png" : "images/tx_input.png",
),
),
new Column(
children: <Widget>[
new Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
discoderyText("test"),
discoderyText("test 2"),
],
),
discoderyText("SOME HASH KEY"),
],
),
],
);
}
The discoderyText is basically a custom text (i.e. with colors).
As you can see, there is mainAxisAlignment: MainAxisAlignment.spaceBetween set for my Row, so test and test2 should be on opposite sides.
When I remove the image and I only returns a Row that contains two Text, and I set the mainAxisAlignment, it works. It seems like nested rows can NOT use this variable.
Here is basically the plan of my view :

Answer 1

Screenshot
Row(
children: <Widget>[
Container(
width: MediaQuery.of(context).size.width / 6,
height: MediaQuery.of(context).size.width / 6,
child: CircleAvatar(backgroundImage: AssetImage(chocolateImage),),
),
Expanded( // add this
child: Padding(
padding: const EdgeInsets.all(8.0), // give some padding
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
mainAxisSize: MainAxisSize.min, // set it to min
children: <Widget>[
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
Text("test"),
Text("test 2"),
],
),
Text("SOME HASH KEY HERE"),
],
),
),
),
],
)