splash_screen.dart

import 'dart:async';

import 'package:covid_tracker/View/word_states.dart';
import 'package:flutter/material.dart';
import 'dart:math'as math;

class SplashScreen extends StatefulWidget {
  const SplashScreen({Key? key}) : super(key: key);

  @override
  _SplashScreenState createState() => _SplashScreenState();
}

class _SplashScreenState extends State<SplashScreen> with TickerProviderStateMixin{

  late final AnimationController _controller=AnimationController(vsync: this,
  duration: const Duration(seconds: 3)
  )..repeat();

 @override
  void dispose(){
    super.dispose();
    _controller.dispose();
  }

  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    Timer(const Duration(seconds: 5),
        ()=>Navigator.push(context, MaterialPageRoute(builder: (context)=>WordStatesScreen()))
    );
  }
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: SafeArea(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          crossAxisAlignment: CrossAxisAlignment.center,
          children:  [
            AnimatedBuilder(
                    animation: _controller, 
                    child: Container(
                      height: 200,
                      width: 200,
                      child: const Center(
                        child: Image(image: AssetImage('images/virus.png')),
                       ),
                     ),
                      builder: (BuildContext context,Widget? child){
                      return Transform.rotate(angle: _controller.value*2.0*math.pi,
                      child:child ,
                      );
                    }
                ),
            SizedBox(height: MediaQuery.of(context).size.height*.08,),
            Align(
              alignment: Alignment.center,
              child: Text('Covid-19\nTracker-App',style: TextStyle(
                fontWeight: FontWeight.bold,
                fontSize: 25,
              ),),
            )
          ],
        ),
      ),
    );
  }
}