效果图

import 'dart:async';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'jumpPage.dart';class TransitPage extends StatefulWidget {const TransitPage({super.key});@overrideState<TransitPage> createState() => _TransitPage();
}class _TransitPage extends State<TransitPage> {late Timer _timer;int _currentTime = 6;@overridevoid initState() {// TODO: implement initStatesuper.initState();_timer = Timer.periodic(Duration(milliseconds: 1000), (timer) {setState(() {_currentTime--;});if(_currentTime<=0){_jumpRoutePage();}});}@overrideWidget build(BuildContext context) {return Scaffold(body: Stack(children: [Image.asset("images/page.png",fit: BoxFit.cover,width: MediaQuery.of(context).size.width,height: MediaQuery.of(context).size.height,),Positioned(top: MediaQuery.of(context).padding.top+30,right: MediaQuery.of(context).padding.right+30,child: InkWell(child: _clipButton(),onTap: (){_jumpRoutePage();},),)],),);}Widget _clipButton() {return ClipRRect(borderRadius: BorderRadius.circular(40),child: Container(height: 50,width: 50,color: Colors.black.withOpacity(0.5),child: Column(mainAxisAlignment: MainAxisAlignment.center,children: [Text("跳过",style: TextStyle(color: Colors.white,fontSize: 12),),Text("${_currentTime}s",style: TextStyle(color: Colors.white,fontSize: 12),),],),),);}//倒计结束或点击跳过后的页面void _jumpRoutePage() {_timer.cancel();Navigator.pushAndRemoveUntil(context, MaterialPageRoute(builder: (BuildContext context)=>TransitPage2()), (route) => false);}
}