title: Full screen pull down disabling
body: <p>I'm developing an <code>full screen application</code> but it's possible for the user to pull down the status bar, and after, access to wifi, bluetooth... features. I have watched some applications that have a complete full screen and don't allow pull down the status bar. The only aproximation is collapse it but this solution allow the user to access all these features. This is the aproximation that isn't is valid for me:</p>
  
  <pre><code>                   if (Build.VERSION.SDK_INT &gt; 16) {
                          collapseStatusBar = statusBarManager
                                  .getMethod("collapsePanels");
                      } else {
                          collapseStatusBar = statusBarManager
                                  .getMethod("collapse");
                      }
  </code></pre>