title: Space between GridLayout items
body: <p>I have a GridLayout in runtime (not a GridView)
  This is my xml</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
          android:id="@+id/grid"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:rowCount="4"
      android:columnCount="3"
      android:verticalSpacing="10dp"
      android:horizontalSpacing="10dp"
      &gt;
  
   &lt;/GridLayout&gt;
  </code></pre>
  
  <p>I add itmes on runtime. The items are a class with Image and Text and everything works good.
  I need to have a space between the items (same like a GridView)</p>
  
  <p>How can I do this?</p>