如何让CustomPaint像这样在颤动中

import 'package:flutter/material.dart';

class ShakingCustomPaint extends StatefulWidget {
  @override
  _ShakingCustomPaintState createState() => _ShakingCustomPaintState();
}

class _ShakingCustomPaintState extends State<ShakingCustomPaint>
    with SingleTickerProviderStateMixin {
  AnimationController _animationController;

  @override
  void initState() {
    super.initState();
    _animationController = AnimationController(
      vsync: this,
      duration: Duration(seconds: 1),
    )..repeat(reverse: true);
  }

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

  @override
  Widget build(BuildContext context) {
    return CustomPaint(
      painter: ShakingPainter(_animationController),
    );
  }
}

class ShakingPainter extends CustomPainter {
  final Animation<double> animation;

  ShakingPainter(this.animation) : super(repaint: animation);

  @override
  void paint(Canvas canvas, Size size) {
    // 根据animation.value来绘制颤动的效果
    final offset = Offset(animation.value * 10, animation.value * 10);
    final paint = Paint()..color = Colors.blue;
    canvas.drawCircle(size.center(offset), 50, paint);
  }

  @override
  bool shouldRepaint(ShakingPainter oldDelegate) {
    return animation != oldDelegate.animation;
  }
}