title: Android: can't remove vertical gap between images in LinearLayout
body: <p>I have a simple LinearLayout in Android with two images vertically:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:app="http://schemas.android.com/apk/res/com.eataly.android" 
      android:orientation="vertical"
      android:background="@android:color/white"
      android:layout_width="fill_parent"
      android:layout_height="fill_parent"
      &gt;
      &lt;ImageView
          android:layout_width="fill_parent"
          android:layout_height="wrap_content"
          android:src="@drawable/img_header1"
          /&gt;
  
      &lt;ImageView
          android:layout_width="fill_parent"
          android:layout_height="wrap_content"
          android:src="@drawable/img_header2"
          /&gt;
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>As you can see at the following link, I can't get rid of a a gap at the top and at the bottom of the images:
  <a href="http://img185.imageshack.us/img185/8484/senzanomev.png" rel="noreferrer">http://img185.imageshack.us/img185/8484/senzanomev.png</a></p>
  
  <p>I've tried everything imaginable on the LinearLayout and the ImageViews, i.e.:</p>
  
  <pre><code>android:padding="0px"
  android:top="0px"
  android:bottom="0px"
  android:top="0px"
  android:layout_margin="0px"
  </code></pre>
  
  <p>with no success.
  What can I do to remove these empty borders?</p>