Flutter's Flexible Behavior - flutter

Question

I want the blue to be full.
But it only spreads up to half.
https://i.stack.imgur.com/UQsiB.png
class TestScene extends StatelessWidget {
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(),
body: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
Flexible(
fit: FlexFit.loose,
child: Container(
color: Colors.red,
child: const Text('1'),
),
),
Flexible(
fit: FlexFit.loose,
child: Container(
color: Colors.blue,
child: const Text('1234567890123456789012345678901234567890'),
),
),
],
),
);
}
}
The reverse will also fail.
https://i.stack.imgur.com/rf00I.png
In both cases, it's nice.
https://i.stack.imgur.com/21ORb.png

Answer 1

This is a way ! (To take remain space)
String one='1',two='1234567890123456789012345678901234567890';
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(),
backgroundColor:Colors.white,
body: Row(
mainAxisSize:MainAxisSize.max,
children: <Widget>[
one.length>=two.length ?
Expanded(
child: Container(
color: Colors.red,
child: Text(one),
),
):Container(
color: Colors.red,
child: Text(one),
),
two.length>=one.length ?
Expanded(
child: Container(
color: Colors.blue,
child: Text(two),
),
):Container(
color: Colors.blue,
child: Text(two),
),
],
),
);
}
Or to maintain equal size with colors simply use Expanded in both widgets

Answer 2

Wrap the one that you want to fill the space by Expanded. If you want both red and blue to fill the row, wrap both of them with Expanded and give them their own ratio with the flex property
class TestScene extends StatelessWidget {
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(),
body: Row(
children: <Widget>[
Container(
color: Colors.red,
child: const Text('1'),
),
Expanded(
child: Container(
color: Colors.blue,
child: const Text('1234567890123456789012345678901234567890'),
),
),
],
),
);
}
}