Nilen Patel Inc.

Tutorial and code of Gradient Progress in Flutter. Copy and paste the below code as per your requirements.

gradient_progress: ^0.1.0

import 'package:flutter/material.dart';
import 'package:gradient_progress/gradient_progress.dart';
void main() => runApp(const MyApp());

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const ExampleHomePage(),
    );
  }
}

class ExampleHomePage extends StatefulWidget {
  const ExampleHomePage({Key? key}) : super(key: key);

  @override
  _ExampleHomePageState createState() => _ExampleHomePageState();
}

class _ExampleHomePageState extends State<ExampleHomePage> with TickerProviderStateMixin{

  late AnimationController _animationController;

  @override
  void initState() {
    _animationController =
    AnimationController(vsync: this, duration: const Duration(seconds: 3));
    _animationController.addListener(() => setState(() {}));
    _animationController.repeat();
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Center(child: Text("Gradient Progress"),),
      ),
      body: Center(
        child: GradientCircularProgressIndicator(
          gradientColors: const [Colors.yellow, Colors.red],
          radius: 40,
          strokeWidth: 8.0,
          value: Tween(begin: 0.0, end: 1.0)
              .animate(CurvedAnimation(
              parent: _animationController, curve: Curves.decelerate))
              .value,
        ),
      ),
    );
  }
}