title: The theme in manifest.xml
body: <p>I change </p>
  
  <pre><code>android:theme="@android:style/Theme.Black.NoTitleBar.Fullscreen"
  </code></pre>
  
  <p>to </p>
  
  <pre><code>android:theme="@android:style/Theme.Translucent.NoTitleBar.Fullscreen"
  </code></pre>
  
  <p>But why it can not change orientation?
  If use android:theme="@android:style/Theme.Black.NoTitleBar.Fullscreen", it can change orientation.
  But if change to another one, it can't.
  I try it in Android 2.3.4.
  But in Android 4.0.2, it works success on change orientation.
  Why and how to avoid it?</p>