send_sms_btn.dart

import 'dart:async';import 'package:flutter/material.dart';
import 'package:get/get.dart';// 发送验证码 按钮
class SendSmsBtn extends StatefulWidget {final Future<bool> Function()? onTap;const SendSmsBtn({super.key,this.onTap,});@overrideState<SendSmsBtn> createState() => _SendSmsBtnState();
}class _SendSmsBtnState extends State<SendSmsBtn> {int countdown = 60;Timer? timer;void sendRegisterMsgCode() {if (countdown == 60) {countdown--;setState(() {});timer?.cancel();timer = null;timer ??= Timer.periodic(const Duration(seconds: 1), (timer) {countdown--;if (countdown == 0) {timer.cancel();countdown = 60;}setState(() {});});}}@overridevoid dispose() {timer?.cancel();timer = null;super.dispose();}@overrideWidget build(BuildContext context) {return countdown == 60? InkWell(onTap: () async {//  AppToast.showLoading();final s = await widget.onTap?.call() ?? false;// AppToast.closeAllLoading();if (s) {sendRegisterMsgCode();}},child: Container(width: 123,height: 43,alignment: Alignment.centerRight,child: Text("发送验证码",style: TextStyle(color: Get.theme.primaryColor, fontSize: 14),),),): Container(width: 123,height: 43,alignment: Alignment.centerRight,child: Text("$countdown s重新获取",style: TextStyle(color: Get.theme.primaryColor, fontSize: 14),),);}
}