当页面触发某些事件后，我不想整个视图都更新，而是通过id去更新特定的一块内容

controller

class StartController extends GetxController {StartController();String title = "";void onTap(int ticket) {title = "GetBuilder -> 点击了第 $ticket 个按钮";update(['splash_title']);}
}

view

import 'package:flutter/material.dart';
import 'package:get/get.dart';import 'index.dart';class StartPage extends GetView<StartController> {const StartPage({super.key});// 主视图Widget _buildView() {return Column(mainAxisAlignment: MainAxisAlignment.spaceEvenly,children: [// 文字标题GetBuilder<StartController>(id: "splash_title",builder: (_) {return Center(child: Text(controller.title),);},),// 按钮ElevatedButton(onPressed: () {controller.onTap(DateTime.now().microsecondsSinceEpoch);},child: const Text("立刻点击"),),],);}@overrideWidget build(BuildContext context) {return GetBuilder<StartController>(init: StartController(),id: "start",builder: (_) {return Scaffold(appBar: AppBar(title: const Text("start")),body: SafeArea(child: _buildView(),),);},);}
}