title: android:orientation="horizontal" does not function
body: <pre><code>&lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="fill_parent"
      android:layout_height="fill_parent"
      android:orientation="horizontal" &gt;
  </code></pre>
  
  <p>When I start this activity, its orientation just inherits the current orientation, no change is made, did I miss something anywhere?</p>