验证码：view

import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'index.dart';class SendcodePage extends GetView<SendcodeController> {// 接收注册页面，传进来的手机号控制器，和发送验证码的类型final TextEditingController? mobileController;final String? type;const SendcodePage({super.key,this.mobileController,this.type});@overrideWidget build(BuildContext context) {print('父组件传进来的值${mobileController!.text},${type}');return GetBuilder<SendcodeController>(// 把值传递给SendcodeController控制器init: SendcodeController(mobileController:mobileController,type:type),id: "sendcode",builder: (_) {return GestureDetector(onTap: controller.onSendCode,child: controller.isSend ? Text(controller.title,style: TextStyle(fontSize: 14,color: Colors.grey),) : Text(controller.title,style: TextStyle(fontSize: 14,color: Color(0xfff0052d9)),),);},);}
}

验证码：controller

import 'dart:async';
import 'package:flutter/cupertino.dart';
import 'package:flutter_aidishi/models/request/user_send_code.dart';
import 'package:flutter_aidishi/utils/loading.dart';
import 'package:get/get.dart';
import '../../api/user.dart';class SendcodeController extends GetxController {// 注册页手机号控制器，获取到手机号final TextEditingController? mobileController;// 发送验证码的类型final String? type;SendcodeController({this.mobileController,this.type});String title = '发送验证码';bool isSend = false;Timer? timer;int downTime = 0;void onSendCode() async{Loading.show();if(isSend) return;var isOk = await UserApi.sendCode(UserSendCodeModel(phone: mobileController!.text,type: type));if(!isOk) return;title = '${60}秒后重新发送';isSend = true;downTime = 60;Loading.success();// 启动倒计时timer = Timer.periodic(Duration(seconds: 1), (Timer timer) {if (downTime > 0) {downTime--;title = '${downTime}秒后重新发送';update(["sendcode"]);} else {timer.cancel();title = '发送验证码';isSend = false;downTime = 0;update(["sendcode"]);}});}_initData() {update(["sendcode"]);}@overridevoid onInit() {super.onInit();}@overridevoid onReady() {super.onReady();_initData();}@overridevoid onClose() {super.onClose();}
}

注册页

Container(child: TDInput(leftLabel: '验证码',backgroundColor: Color(0xffF5F5F5),hintText: '请输入验证码',controller: controller.codeController,onChanged:(value){controller.checkLoginButtonState();},needClear:false,rightBtn: Container(// 在这里把手机号控制器，验证码的类型，传递过去。child: SendcodePage(mobileController:controller.mobileController,type:'register'),),),
),