title: Center alignment of RecyclerView in android
body: <p>I am following this tutorial
  <a href="http://www.exoguru.com/android/ui/recyclerview/custom-android-grids-using-recyclerview.html" rel="nofollow noreferrer">http://www.exoguru.com/android/ui/recyclerview/custom-android-grids-using-recyclerview.html</a>
  and I've minimized the the total number of element to 4.
  I want to view the recyclerView at middle of the screen.but When I use "wrap_content" as it's height, the recyclerView is showing at the top of the screen.But if I specifies the height of it (for example: "350dp") it is showing at the center of the screen as i wanted.What went wrong when is use "wrap_content"</p>
  
  <p><a href="https://i.stack.imgur.com/BwCLc.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/BwCLc.jpg" alt="enter image description here"></a></p>