import 'package:flutter/material.dart'; /// 只让输入区响应键盘高度,避免整棵页面随 MediaQuery 反复重建。 class KeyboardLift extends StatelessWidget { final Widget child; const KeyboardLift({super.key, required this.child}); @override Widget build(BuildContext context) { final bottom = MediaQuery.viewInsetsOf(context).bottom; return Padding( padding: EdgeInsets.only(bottom: bottom), child: child, ); } }