Flutter: cutting a row in "half" - flutter

Question

I've been toying with lists in flutter, and everything is fine. I'm starting to understand the logic of the whole thing.
Now I wanted to do a simple layout like that :
My problem is that I can't find a way to make the first row. I tried to tell Row to let its two children take half and no less no more, but I didn't really find a way. (The inside thing will eventually be buttons.)I tried several things to no avail. Here is the layout I started from :
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: Column(children: <Widget>[
Padding(
padding: EdgeInsets.only(top: 50.0),
),
Row(
children: <Widget>[
Padding(
padding: EdgeInsets.only(
top: buttonPaddingTop,
left: buttonPaddingSide,
right: buttonPaddingSide),
child: ButtonTheme(
child: FlatButton(
onPressed: () {},
color: Colors.grey,
child: const Text('LARGE TEXT',
overflow: TextOverflow.ellipsis,
style: TextStyle(fontSize: buttonFontSize)),
),
),
),
Padding(
padding: EdgeInsets.only(
top: buttonPaddingTop,
left: buttonPaddingSide,
right: buttonPaddingSide),
child: ButtonTheme(
child: FlatButton(
onPressed: () {},
color: Colors.grey,
child: const Text('LARGE TEXT',
overflow: TextOverflow.ellipsis,
style: TextStyle(fontSize: buttonFontSize)),
),
),
),
],
),
]),
),
);
}
Should I continue trying like this, or should I try another object than Row to arrange the layout ?

Answer 1

Expanded takes as much space as available in this case horizontally. That means if you would use 2 Expanded widgets inside your Row, the space will be divided by half.
Try this:
Column(
children: <Widget>[
Row(
children: <Widget>[
Expanded(
child: Text('first half'),
),
Expanded(
child: Text('second half'),
),
],
),
Row(
children: <Widget>[
Expanded(
child: Text('first half'),
),
Expanded(
child: Text('second half'),
),
],
),
Row(
children: <Widget>[
Expanded(
child: Text('full width'),
)
],
),
],
)
Make sure you read more about Flutter widgets, for example watch this video (and other ones in this series):
https://www.youtube.com/watch?v=_rnZaagadyo