title: android:theme="@android:style/Theme.NoTitleBar.Fullscreen" Not working android
body: <p>I declare my activity in manifest file like following.</p>
  
  <pre><code>&lt;activity 
          android:name=".SiteView" 
           android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
          android:screenOrientation="landscape" &gt;
          &lt;intent-filter&gt;
              &lt;action android:name="android.intent.action.MAIN" /&gt;
  
              &lt;category android:name="android.intent.category.HOME" /&gt;
              &lt;category android:name="android.intent.category.DEFAULT" /&gt;
  
          &lt;/intent-filter&gt;
      &lt;/activity&gt;
  </code></pre>
  
  <p>I declare activity with Fullscreen theame. But its not working. </p>
  
  <p>I also use second way for Fullscreen like following.</p>
  
  <pre><code> requestWindowFeature(Window.FEATURE_NO_TITLE);
  
  getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
  </code></pre>
  
  <p>But no success. Please help me to find this.</p>