title: How to remove title bar in android?
body: <p>I want to do android program that contains no title bar. For some reason I cant remove title bar.
  I have already tried this coding.</p>
  
  <pre><code>this.requestWindowFeature(Window.FEATURE_NO_TITLE);
  </code></pre>
  
  <p>This one also I have tried but the program suddenly stops..</p>
  
  <pre><code> android:icon="@drawable/icon" 
   android:label="@string/app_name" 
   android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
  </code></pre>
  
  <p>How can I fix this?</p>