title: Why does the background of TextView change it's size?
body: <p>I put a background to a TextView. I expect the background will adjust to my existing layout parameters and will not change the size of my TextView. So if I have width and height set to wrap_content, I would expect the background also wraps content (and scales down). But no, what I get is a bigger TextView</p>
  
  <pre><code>&lt;TextView 
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:text="a"
      android:textColor="#ffffff"
      android:textSize="20sp"
      android:background="@drawable/large_bg"
  /&gt;
  </code></pre>
  
  <p>I get</p>
  
  <p><img src="https://i.stack.imgur.com/3SxMa.png" alt="enter image description here"></p>
  
  <p>...</p>
  
  <p>How do I make that the background also obeys wrap_content?</p>
  
  <p>I mean, this looks like the background would be treated as content...</p>