farmer_client/lib/pages/splash/widgets/countdown.dart

import 'dart:async';

import 'package:farmer_client/utils/timer.dart';
import 'package:flutter/widgets.dart';
import 'package:get/get.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';

Widget countdown(int sec, void Function() onFinish) {
  var _countdown = Rx<int>(sec);

  late Timer _timer;
  _timer = setInterval((_) {
    if (_countdown.value <= 1) {
      _timer.cancel();
      onFinish();
      return;
    }
    _countdown.value -= 1;
  }, 1000);

  return Obx(
        () => GestureDetector(
      onTap: () {
        _timer.cancel();
        // return;
        // onFinish();
      },
      child: Container(
        width: 50.w,
        height: 30.h,
        alignment: const Alignment(0, 0),
        decoration: const BoxDecoration(
            borderRadius: BorderRadius.all(Radius.circular(20)),
            color: Color(0x77222222)),
        child: Text(
          _countdown.value.toString() + '跳过',
          style: TextStyle(
            fontSize: 13.sp,
            letterSpacing: 2,
            color: const Color(0xFFFFFFFF),
          ),
        ),
      ),
    ),
  );
}