title: LinearLayout inside TableRow makes a warning
body: <p>I want to make a custom TableRow for my android application. I started from the LinearLayout which is exactly what I want to display but as a TableRow in a TableLayout.</p>
  
  <pre><code>&lt;LinearLayout
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:orientation="vertical"
      android:padding="10dp" &gt;
  
      &lt;LinearLayout
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:orientation="horizontal"
          android:paddingBottom="3dp"
          android:paddingTop="3dp"
          android:weightSum="1" &gt;
  
          &lt;TextView
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:layout_weight="0.7"
              android:text="@string/Context" /&gt;
  
          &lt;TextView
              android:id="@+id/ContextTextView"
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:layout_weight="0.3" /&gt;
      &lt;/LinearLayout&gt;
  
      &lt;LinearLayout
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:orientation="horizontal"
          android:paddingBottom="3dp"
          android:paddingTop="3dp"
          android:weightSum="1" &gt;
  
          &lt;TextView
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:layout_weight="0.7"
              android:text="@string/SHUId" /&gt;
  
          &lt;TextView
              android:id="@+id/SHUIdTextView"
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:layout_weight="0.3" /&gt;
      &lt;/LinearLayout&gt;
  
      ...Others LinearLayouts with 2 TextViews...
  
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>So first I tried to put this code inside a TableRow element : </p>
  
  <pre><code>&lt;TableRow xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="match_parent"
      android:layout_height="wrap_content" &gt;
  
      ...LinearLayout code from above...
  
  &lt;TableRow /&gt;
  </code></pre>
  
  <p>At this point the layout is displayed properly in the eclipse editor BUT now I have a Lint warning on the main LinearLayout : "This LinearLayout layout or its TableRow parent is 
   useless"</p>
  
  <p>Then I'd say OK TableRow is a subclass of LinearLayout then I could simply remove the main LinearLayout and put his properties directly on the TableRow just like this :</p>
  
  <pre><code>&lt;TableRow xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:orientation="vertical"
      android:padding="10dp" &gt;
  
      &lt;LinearLayout &gt;
          &lt;TextView /&gt;
          &lt;TextView /&gt;
      &lt;LinearLayout /&gt;
  
      &lt;LinearLayout &gt;
          &lt;TextView /&gt;
          &lt;TextView /&gt;
      &lt;LinearLayout /&gt;
  
      ...etc...
  
  &lt;TableRow /&gt; 
  </code></pre>
  
  <p>But now the layout is not correctly displayed anymore (but no warning). I see only the first line (with the 2 first TextView). 
  What am I missing?</p>