title: Android ImageView will not match_parent width
body: <p>I have an ImageView that is 1x20px. The image is a .9.png. I am trying to use match_parent but when I run the app on my device, it is not stretched to fill the width of the screen. Here's the code in the XML for the ImageView</p>
  
  <pre><code>&lt;ImageView
    android:id="@+id/dividerBar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:src="@drawable/ic_bar" 
    android:layout_gravity="center_horizontal"
    android:scaleType="centerInside" /&gt;
  </code></pre>
  
  <p>Any ideas on how I can get the ImageView to cover the entire width of the screen?</p>