import 'package:flutter/material.dart'; class LocationInputField extends StatelessWidget { final ValueChanged onChanged; const LocationInputField({required this.onChanged}); @override Widget build(BuildContext context) { return TextFormField( onChanged: onChanged, decoration: InputDecoration( labelText: "物品位置", hintText: "请输入物品位置", border: OutlineInputBorder(), ), ); } }