circular_countdown_timer 0.2.1

Make an animated circular countdown using Circular Countdown Timer.

example/example.dart

import 'package:flutter/material.dart';
import 'package:circular_countdown_timer/circular_countdown_timer.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: 'Circular Countdown Timer Demo',
      theme: ThemeData(
        primarySwatch: Colors.purple,
      ),
      home: const MyHomePage(title: 'Circular Countdown Timer'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key, this.title}) : super(key: key);

  final String? title;

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

class _MyHomePageState extends State<MyHomePage> {
  final int _duration = 10;
  final CountDownController _controller = CountDownController();

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title!),
      ),
      body: Center(
          child: CircularCountDownTimer(
        // Countdown duration in Seconds.
        duration: _duration,

        // Countdown initial elapsed Duration in Seconds.
        initialDuration: 0,

        // Controls (i.e Start, Pause, Resume, Restart) the Countdown Timer.
        controller: _controller,

        // Width of the Countdown Widget.
        width: MediaQuery.of(context).size.width / 2,

        // Height of the Countdown Widget.
        height: MediaQuery.of(context).size.height / 2,

        // Ring Color for Countdown Widget.
        ringColor: Colors.grey[300]!,

        // Ring Gradient for Countdown Widget.
        ringGradient: null,

        // Filling Color for Countdown Widget.
        fillColor: Colors.purpleAccent[100]!,

        // Filling Gradient for Countdown Widget.
        fillGradient: null,

        // Background Color for Countdown Widget.
        backgroundColor: Colors.purple[500],

        // Background Gradient for Countdown Widget.
        backgroundGradient: null,

        // Border Thickness of the Countdown Ring.
        strokeWidth: 20.0,

        // Begin and end contours with a flat edge and no extension.
        strokeCap: StrokeCap.round,

        // Text Style for Countdown Text.
        textStyle: const TextStyle(
          fontSize: 33.0,
          color: Colors.white,
          fontWeight: FontWeight.bold,
        ),

        // Format for the Countdown Text.
        textFormat: CountdownTextFormat.S,

        // Handles Countdown Timer (true for Reverse Countdown (max to 0), false for Forward Countdown (0 to max)).
        isReverse: false,

        // Handles Animation Direction (true for Reverse Animation, false for Forward Animation).
        isReverseAnimation: false,

        // Handles visibility of the Countdown Text.
        isTimerTextShown: true,

        // Handles the timer start.
        autoStart: false,

        // This Callback will execute when the Countdown Starts.
        onStart: () {
          // Here, do whatever you want
          debugPrint('Countdown Started');
        },

        // This Callback will execute when the Countdown Ends.
        onComplete: () {
          // Here, do whatever you want
          debugPrint('Countdown Ended');
        },
      )),
      floatingActionButton: Row(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          const SizedBox(
            width: 30,
          ),
          _button(title: "Start", onPressed: () => _controller.start()),
          const SizedBox(
            width: 10,
          ),
          _button(title: "Pause", onPressed: () => _controller.pause()),
          const SizedBox(
            width: 10,
          ),
          _button(title: "Resume", onPressed: () => _controller.resume()),
          const SizedBox(
            width: 10,
          ),
          _button(
              title: "Restart",
              onPressed: () => _controller.restart(duration: _duration))
        ],
      ),
    );
  }

  Widget _button({required String title, VoidCallback? onPressed}) {
    return Expanded(
        child: ElevatedButton(
      child: Text(
        title,
        style: const TextStyle(color: Colors.white),
      ),
      style: ButtonStyle(
        backgroundColor: MaterialStateProperty.all(Colors.purple),
      ),
      onPressed: onPressed,
    ));
  }
}