Flex-x
Assign a numeric flex factor to a child widget using flex-N, where N is a positive integer. Higher numbers claim proportionally more space.
import 'package:fluttersdk_wind/fluttersdk_wind.dart';
WFlexContainer(
className: 'flex-row bg-gray-200',
children: [
WCard(
className: 'flex-2 bg-blue-500',
child: WText('Flex 2'),
),
WCard(
className: 'flex-1 bg-green-500',
child: WText('Flex 1'),
),
],
);
Basic Usage
Use flex-N on a child widget to assign it a flex factor. The space is divided proportionally: a child with flex-2 receives twice the space of a sibling with flex-1.
Under the hood, flex-N resolves to FlexFit.tight with a flex value of N. This wraps the child in a Flutter Flexible widget.
WFlexContainer(
className: 'flex-row bg-gray-200',
children: [
WCard(className: 'flex-3 bg-blue-500', child: WText('3 parts')),
WCard(className: 'flex-1 bg-green-500', child: WText('1 part')),
WCard(className: 'flex-1 bg-red-500', child: WText('1 part')),
],
);
Quick Reference
| Syntax | Flex Factor | FlexFit | Description |
|---|---|---|---|
flex-1 |
1 |
FlexFit.tight |
Child receives 1 proportional share |
flex-2 |
2 |
FlexFit.tight |
Child receives 2 proportional shares |
flex-N |
N |
FlexFit.tight |
Child receives N proportional shares |
Any positive integer is accepted for N.
Responsive Design
Prefix flex-N with a breakpoint to change the flex factor at specific screen sizes.
WFlexContainer(
className: 'flex-row bg-gray-200',
children: [
WCard(
className: 'flex-1 md:flex-2 bg-blue-500',
child: WText('Grows on md+'),
),
WCard(
className: 'flex-1 bg-green-500',
child: WText('Always 1'),
),
],
);
Related Documentation
- Flex Fit —
flex-grow/flex-autofor non-numeric flex sizing. - Axis Sizes — control the container's main-axis size.
- WFlexible — the widget that wraps Flutter
Flexible. - WFlexContainer — the primary flex layout widget.