在颤动中使用CustomPaint小部件的自定义形状可点击区域

import 'package:flutter/material.dart';

class CustomShapePainter extends CustomPainter {
  @override
  void paint(Canvas canvas, Size size) {
    // 绘制自定义形状
    Paint paint = Paint()
      ..color = Colors.blue
      ..style = PaintingStyle.fill;

    Path path = Path();
    path.moveTo(0, size.height / 2);
    path.lineTo(size.width / 2, 0);
    path.lineTo(size.width, size.height / 2);
    path.lineTo(size.width / 2, size.height);
    path.close();

    canvas.drawPath(path, paint);
  }

  @override
  bool shouldRepaint(CustomPainter oldDelegate) {
    return false;
  }
}

class CustomShapeWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return GestureDetector(
      onTap: () {
        // 处理点击事件
        print('点击了自定义形状区域');
      },
      child: CustomPaint(
        painter: CustomShapePainter(),
        child: Container(
          width: 200,
          height: 200,
        ),
      ),
    );
  }
}

void main() {
  runApp(MaterialApp(
    home: Scaffold(
      appBar: AppBar(
        title: Text('Custom Shape'),
      ),
      body: Center(
        child: CustomShapeWidget(),
      ),
    ),
  ));
}