title: viewflipper get the current display child id
body: <p>I have viewFlipper with three views insdie,</p>
  
  <ol>
  <li><p>v1.id = 0</p></li>
  <li><p>v2.id = 1</p></li>
  <li><p>v3.id = 2</p></li>
  </ol>
  
  <p>How could I know/get the current view id ? </p>
  
  <p>i have textbox which i need to update according the current view id </p>
  
  <p><code>getDisplayedChild()</code> returns sometimes numbers bigger then 3 like 4, 5  </p>