title: RecycleView conflict with Constraint Layout.(Item view inside recycleview doesn't match_parent)
body: <p>I have simple implement recycle-view. It displays some items.
  Each item has a layout like:</p>
  
  <pre><code>&lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:app="http://schemas.android.com/apk/res-auto"
  xmlns:tools="http://schemas.android.com/tools"
  android:layout_width="match_parent"
  android:layout_height="100dp"
  android:background="#f00"
  android:orientation="vertical"
  android:paddingLeft="16dp"
  android:paddingRight="16dp"&gt;
  &lt;TextView/&gt;
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>I found the problem is:</p>
  
  <ol>
  <li><p>If we put the RecycleView doesn't inside constraint layout -> the item view will match_parent (make width to fill parent) -> OK</p></li>
  <li><p>If we put the RecycleView inside constraint layout -> the item view seem force to wrap_content.
  <a href="https://i.stack.imgur.com/pkQ2L.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/pkQ2L.png" alt="item view doesn&#39;t match parent"></a></p></li>
  </ol>
  
  <p>So my question is how to fix this problem?
  (how do I make recycle-view work well inside constraint layout ?).</p>
  
  <p><strong>Update</strong>
  The view of constraint layout
  <a href="https://gist.github.com/quangson91/6fae50f5540f8624e71c9eb2f397dfe3" rel="nofollow noreferrer">https://gist.github.com/quangson91/6fae50f5540f8624e71c9eb2f397dfe3</a></p>