title: Black screen between Splash Screen and First Screen (iOS)
body: <p>I have a problem with my flutter application. On iOS, everytime I launch it, I see a black screen for 1-2 seconds before my first screen can be loaded. The behaviour is like the one showed in this 
  <a href="https://www.youtube.com/watch?v=EpB_AdekLNc&amp;feature=youtu.be" rel="noreferrer">video</a></p>
  
  <p>I have setup a splashscreen editing LaunchScreen.storyboard.
  This happens even if I try to launch the default flutter app (counter), and both in emulator and real device.</p>
  
  <p>How could I solve this, or at least change it from a black screen to a white screen?</p>