title: Flutter hold splash screen for 3 Seconds. How to implement splash screen in Flutter?
body: <p>How to show splash screen in flutter for 3 seconds and then go next my login screen. </p>
  
  <p>I have tried.countdowntimer but import is unresolved </p>
  
  <pre><code>import 'package: countDown/countDown.dart';
  CountDown cd  =  new CountDown(new Duration(seconds: 4));
  CountDown is unresolved 
  </code></pre>
  
  <p>Android Studio &amp; Flutter</p>