app-zj/lib/widget/print_checkbox_widget.dart

import 'package:flutter/material.dart';
import 'package:lszlgl/base/base_lifecycle_state.dart';

class PrintCheckboxWidget extends StatefulWidget {
  final num itemId;
  final ValueChanged<bool> onChanged;
  final List<num> list;

  const PrintCheckboxWidget({
    super.key,
    required this.itemId,
    required this.list,
    required this.onChanged,
  });

  @override
  State<PrintCheckboxWidget> createState() => _PrintCheckboxWidgetState();
}

class _PrintCheckboxWidgetState extends State<PrintCheckboxWidget> {
  bool _select = false;

  @override
  void initState() {
    super.initState();
    for(num item in widget.list){
      if(item ==widget.itemId){
        _select = true;
        break ;
      }
    }
  }

  @override
  Widget build(BuildContext context) {
    return IconButton(
      iconSize: 40,
      padding: const EdgeInsets.all(0),
      color: Colors.white,
      onPressed: () {
        if(!_select && widget.list.length>=5){
          MyNavigator.showToast('一次最多选5条数据');
          return;
        }

        setState(() {
          _select = !_select;
        });
        widget.onChanged(_select);
      },
      icon: Icon(
        Icons.check_circle,
        color: _select ? Colors.green : Colors.grey,
      ),
    );
  }
}