order_button.dart

import 'package:flutter/material.dart';

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

  @override
  State<OrderButton> createState() => _OrderButtonState();
}

class _OrderButtonState extends State<OrderButton> {
  int qty = 0;
  @override
  Widget build(BuildContext context) {
    return Row(
      mainAxisSize: MainAxisSize.min,
      children: [
        InkWell(
          onTap: () {
            setState(() {
              if (qty > 0) qty--;
            });
          },
          child: const Icon(Icons.remove),
        ),
        const SizedBox(width: 8),
        Text("$qty"),
        const SizedBox(width: 8),
        InkWell(
          onTap: () {
            setState(() {
              qty++;
            });
          },
          child: const Icon(Icons.add),
        ),
      ],
    );
  }
}