title: How do you change EditText line/field color on TextInputLayout (when calling setError)?
body: <p>When I invoke <code>setError</code> on the <code>TextInputLayout</code> from the <a href="http://android-developers.blogspot.com/2015/05/android-design-support-library.html" rel="nofollow">new Android design support library</a> the line color does not change. But the error does successfully appear with the correct color.</p>
  
  <p>This is the code I'm using:</p>
  
  <pre><code>textInputLayout.setError("Error Message");
  </code></pre>
  
  <p>Per the <a href="https://www.google.com/design/spec/components/text-fields.html" rel="nofollow">Material Design Spec for Text Fields</a> when there is an error, the line/field color should be red.</p>
  
  <p><strong>How can I set the color of the line?</strong></p>
  
  <p>If it can be done as a side effect of invoking <code>setError</code> that would be great.</p>