This is a demo of the solution exposed in this StackOverflow answer.
Last active
December 31, 2023 01:42
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[SO]CircularProgressBar with percentage
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| import 'package:flutter/material.dart'; | |
| void main() { | |
| runApp(MyApp()); | |
| } | |
| class MyApp extends StatelessWidget { | |
| @override | |
| Widget build(BuildContext context) { | |
| return MaterialApp( | |
| theme: ThemeData.light(), | |
| debugShowCheckedModeBanner: false, | |
| home: Scaffold( | |
| body: Center( | |
| child: CircularProgressBar(), | |
| ), | |
| ), | |
| ); | |
| } | |
| } | |
| class CircularProgressBar extends StatefulWidget { | |
| @override | |
| State<CircularProgressBar> createState() => _CircularProgressBarState(); | |
| } | |
| class _CircularProgressBarState extends State<CircularProgressBar> | |
| with SingleTickerProviderStateMixin { | |
| late final _animationController = AnimationController( | |
| vsync: this, | |
| duration: const Duration(milliseconds: 5000), | |
| )..repeat(); | |
| @override | |
| Widget build(BuildContext context) { | |
| return AnimatedBuilder( | |
| animation: _animationController, | |
| builder: (context, child) => Stack( | |
| alignment: Alignment.center, | |
| children: [ | |
| SizedBox.square( | |
| dimension: 112, | |
| child: CircularProgressIndicator( | |
| value: _animationController.value, | |
| color: Colors.green, | |
| strokeWidth: 24.0, | |
| ), | |
| ), | |
| Text( | |
| '${(_animationController.value * 100).toInt()}%', | |
| style: const TextStyle( | |
| fontSize: 28.0, | |
| fontWeight: FontWeight.bold, | |
| color: Colors.black, | |
| ), | |
| ), | |
| ], | |
| ), | |
| ); | |
| } | |
| } |
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