title: hide status bar in landscape mode leave a blank space when rotating
body: <p>My application support to display some screen in landscape mode, and in landscape mode, I set to hide the status bar to get mode space to display data.</p>
  
  <p>The problem is while hiding the status bar and rotate screen, it leave a white pace at status bar position until the screen is rotated completely as below screenshot.</p>
  
  <p><img src="https://i.stack.imgur.com/xgPY7.png" alt="alt text"> 
  I guess that steps of operations when rotating screen are:
  1. hide status bar
  2. rotate screen
  3. resize screen to take place of status bar.</p>
  
  <p>So until the screen is rotated completely, user still can see the white space, it is not good and I want to do something such as: set color for that blank space to black, or set animation to hide that blank space but unlucky!</p>
  
  <p>So, does anyone have solution to resolve this, please help me, thanks a lot!</p>