title: Android - Align view center to bottom of other view
body: <p>A picture tells more than a lengthy speech :
  <a href="https://i.stack.imgur.com/4PuhL.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/4PuhL.jpg" alt="enter image description here"></a></p>
  
  <p>I want to align vertically the center of the red part with the middle of the black part. I have no constraint of container (RelativeLayout, FrameLayout, LinearLayout oO ).</p>
  
  <p>I tried a View with height of 0dp aligned to the bottom of the black view and alignBaseline of red view to it, but it doesn't work...</p>
  
  <p>Thanks for your help !</p>