freezer/lib/ui/animated_bars.dart

import 'dart:math';

import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';

class AnimatedBars extends StatefulWidget {
  final double size;
  final Color? color;
  const AnimatedBars({
    super.key,
    this.size = 24.0,
    this.color,
  });

  @override
  State<AnimatedBars> createState() => _AnimatedBarsState();
}

class _AnimatedBarsState extends State<AnimatedBars>
    with TickerProviderStateMixin {
  late final _controller = AnimationController(
      vsync: this, duration: const Duration(milliseconds: 1000))
    ..repeat(reverse: true);

  @override
  void dispose() {
    _controller.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    final color = widget.color ?? Theme.of(context).colorScheme.onSurface;
    const count = 3;
    AnimatedIcons.search_ellipsis;
    return SizedBox.square(
        dimension: widget.size,
        child: Row(
          mainAxisAlignment: MainAxisAlignment.spaceEvenly,
          children: List.generate(
              count,
              (index) => SizedBox(
                    width: widget.size / count,
                    child: Align(
                      alignment: Alignment.bottomCenter,
                      child: Container(color: color),
                    ),
                  )),
        ));
  }
}