title: TabHost not showing in the screen
body: <p>I'm trying to use <code>TabHost</code> on my app, and I simply dragged it to my activity using the design, but when I run it, it just won't appear, just get the white screen, does anyone knows why?</p>
  
  <p></p>
  
  <pre><code>&lt;TabHost
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:id="@+id/tabHost"
      android:layout_gravity="center_horizontal"&gt;
  
      &lt;LinearLayout
          android:layout_width="fill_parent"
          android:layout_height="fill_parent"
          android:orientation="vertical"&gt;
  
          &lt;TabWidget
              android:id="@android:id/tabs"
              android:layout_width="fill_parent"
              android:layout_height="wrap_content"&gt;&lt;/TabWidget&gt;
  
          &lt;FrameLayout
              android:id="@android:id/tabcontent"
              android:layout_width="fill_parent"
              android:layout_height="fill_parent"&gt;
  
              &lt;LinearLayout
                  android:id="@+id/tab1"
                  android:layout_width="fill_parent"
                  android:layout_height="fill_parent"
                  android:orientation="vertical"&gt;&lt;/LinearLayout&gt;
  
              &lt;LinearLayout
                  android:id="@+id/tab2"
                  android:layout_width="fill_parent"
                  android:layout_height="fill_parent"
                  android:orientation="vertical"&gt;&lt;/LinearLayout&gt;
  
              &lt;LinearLayout
                  android:id="@+id/tab3"
                  android:layout_width="fill_parent"
                  android:layout_height="fill_parent"
                  android:orientation="vertical"&gt;&lt;/LinearLayout&gt;
          &lt;/FrameLayout&gt;
      &lt;/LinearLayout&gt;
  &lt;/TabHost&gt;
  </code></pre>
  
  <p></p>