Flutter Container Border
To set specific border for Container widget in Flutter, set decoration
property of the Container with the required BoxDecoration.
Syntax
Container (
decoration: BoxDecoration(
border: Border.all(
color: Colors.black,
width: 2.0,
style: BorderStyle.solid
),
),
),
Example
Flutter Application with a Container widget.
The border of this Container widget is set to black
color with a width of 5.0
and solid
style via border
property of BoxDecoration.
main.dart
import 'package:flutter/material.dart';
void main() => runApp(const MyApp());
/// main application widget
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
static const String _title = 'Flutter Application';
@override
Widget build(BuildContext context) {
return MaterialApp(
title: _title,
home: Scaffold(
appBar: AppBar(title: const Text(_title)),
body: const MyStatefulWidget(),
),
);
}
}
/// stateful widget that the main application instantiates
class MyStatefulWidget extends StatefulWidget {
const MyStatefulWidget({Key? key}) : super(key: key);
@override
State<MyStatefulWidget> createState() => _MyStatefulWidgetState();
}
/// private State class that goes with MyStatefulWidget
class _MyStatefulWidgetState extends State<MyStatefulWidget> {
@override
Widget build(BuildContext context) {
return Center(
child: Container(
width: 200,
height: 200,
decoration: BoxDecoration(
border: Border.all(
color: Colors.black,
width: 5.0,
style: BorderStyle.solid
),
color: Colors.yellowAccent,
),
child: const Center (
child: Text('Hello World')
),
),
);
}
}
Screenshot