title: Replacing include layout
body: <p>I generated new Android project in Android Studio where i choosed the new template for blank activity with Fragment, i found out its structured a bit different then old ones. It uses  tag and CoordinatorLayout. So how should i be switching layouts inside this include tag?</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;android.support.design.widget.CoordinatorLayout
      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="match_parent" android:fitsSystemWindows="true"
      tools:context=".MainActivity"&gt;
  
      &lt;android.support.design.widget.AppBarLayout android:layout_height="wrap_content"
          android:layout_width="match_parent" android:theme="@style/AppTheme.AppBarOverlay"&gt;
  
          &lt;android.support.v7.widget.Toolbar android:id="@+id/toolbar"
              android:layout_width="match_parent" android:layout_height="?attr/actionBarSize"
              android:background="?attr/colorPrimary" app:popupTheme="@style/AppTheme.PopupOverlay" /&gt;
  
      &lt;/android.support.design.widget.AppBarLayout&gt;
  
      &lt;include layout="@layout/content_main" /&gt;
  
      &lt;android.support.design.widget.FloatingActionButton android:id="@+id/fab"
          android:layout_width="wrap_content" android:layout_height="wrap_content"
          android:layout_gravity="bottom|end" android:layout_margin="@dimen/fab_margin"
          android:src="@android:drawable/ic_dialog_email" /&gt;
  
  &lt;/android.support.design.widget.CoordinatorLayout&gt;
  </code></pre>