title: Rating stars show incorrectly
body: <p>Trying to show rating stars in a flexible way - means, with <code>wrap_content</code> height, or at least dp, and preferably vertically centered - but they're displayed always on top and remaining space filled with vertical lines. See image.</p>
  
  <p><img src="https://i.stack.imgur.com/flqP0.png" alt="enter image description here"></p>
  
  <p>The XML:</p>
  
  <pre><code>&lt;RatingBar
      android:id="@+id/product_rating"
      android:layout_width="wrap_content"
      android:layout_height="33dp"
      android:progressDrawable="@drawable/star_ratingbar_big"
      android:indeterminateDrawable="@drawable/star_ratingbar_big"
      android:layout_centerInParent="true"
      /&gt;
  </code></pre>
  
  <p>Thanks in advance!</p>