title: Single tab in TabLayout is not covering the entire width
body: <p>I have created a view pager with TabLayout. Now the issue is if I have 2 or more tabs then everything is fine. But if I am having only one tab then it is not covering the entire screen width. PFA the xml layout</p>
  
  <pre><code> &lt;android.support.design.widget.TabLayout
          android:id="@+id/sliding_tabs"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          app:tabGravity="fill"
          app:tabMode="fixed"
          style="@style/TabLayout"
          android:fillViewport="true"
          android:layout_below="@id/ssrToolbar"/&gt;
  
      &lt;android.support.v4.view.ViewPager
          android:id="@+id/viewpager"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:layout_below="@id/sliding_tabs"
          android:layout_above="@+id/llButtonLayout"
          android:background="@android:color/white" /&gt;
  </code></pre>
  
  <p>Also here are the two images</p>
  
  <p><a href="https://i.stack.imgur.com/KUab0.png" rel="noreferrer"><img src="https://i.stack.imgur.com/KUab0.png" alt="single tab"></a></p>
  
  <p><a href="https://i.stack.imgur.com/v3kiF.png" rel="noreferrer"><img src="https://i.stack.imgur.com/v3kiF.png" alt="two tabs"></a></p>