title: How to make bottom border in drawable shape XML selector?
body: <p>I'm trying to create a drawable shape with different states for my button. So I wrote this:</p>
  
  <pre><code>&lt;selector xmlns:android="http://schemas.android.com/apk/res/android" &gt;
  &lt;item android:state_pressed="true" android:color="@android:color/black" &gt;
      &lt;shape android:shape="rectangle" &gt;
          &lt;solid android:color="@color/NEGATIVE_pressed" /&gt;
          &lt;stroke
              android:width="1dp"
              android:color="@color/ORANGE" /&gt;
          &lt;corners android:radius="4dp" /&gt;
      &lt;/shape&gt;
  &lt;/item&gt;
  &lt;item android:state_focused="true" android:color="@android:color/black" &gt;
      &lt;shape android:shape="rectangle" &gt;
          &lt;solid android:color="@color/NEGATIVE_focused" /&gt;
          &lt;stroke
              android:width="1dp"
              android:color="@color/ORANGE" /&gt;
          &lt;corners android:radius="4dp" /&gt;
      &lt;/shape&gt;
  &lt;/item&gt;
  &lt;item android:color="@android:color/black" &gt;
      &lt;shape android:shape="rectangle" &gt;
          &lt;solid android:color="@color/NEGATIVE" /&gt;
          &lt;stroke
              android:width="1dp"
              android:color="@color/NEGATIVE" /&gt;
          &lt;corners android:radius="4dp" /&gt;
      &lt;/shape&gt;
  &lt;/item&gt;
  &lt;/selector&gt;
  </code></pre>
  
  <p>Then in my button I use it as <code>android:background="@drawable/btn_negative_selector"</code></p>
  
  <p>However, I want to draw a bottom border to that shape, to be, something like 3 dp and of different color, but I can't figure out how to do it. I tried searching, but didn't find anything suitable for selector. Any suggestions, please?</p>