title: BringToFront doesn't work inside a coordinator layout
body: <pre><code>Android Studio 2.0 Preview 4
  </code></pre>
  
  <p>I am using to use <code>BringToFront</code> to get a <code>TextView</code> to display in front of the other controls.</p>
  
  <p>The Doc's <a href="http://developer.android.com/reference/android/view/View.html#bringToFront%28%29" rel="noreferrer">bringToFront()</a> say you have to call <code>requestlayout</code> <code>invalidate</code>. Which I do, but doesn't work.</p>
  
  <pre><code>tvLevel.bringToFront();
  tvLevel.requestLayout();
  tvLevel.invalidate();
  </code></pre>
  
  <p>I am using this <code>TextView</code> inside a <code>android.support.design.widget.CoordinatorLayout</code></p>
  
  <p>However, the following code does work. But only supports API 21 and above. But I need to support API 16.</p>
  
  <pre><code>  if(Build.VERSION.SDK_INT &gt;= Build.VERSION_CODES.LOLLIPOP) {
        tvLevel.setTranslationZ(4);
        tvLevel.invalidate();
    }
  </code></pre>
  
  <p>Or by setting the <code>xml</code> attribute property <code>android:translationZ("4dp")</code> works. However, only for API 21</p>