title: Add icon with title in CollapsingToolbarLayout
body: <p>I am using <code>CoordinatorLayout</code> to get this effect :</p>
  
  <p><a href="https://i.stack.imgur.com/UEvQp.gif" rel="noreferrer"><img src="https://i.stack.imgur.com/UEvQp.gif" alt="This is screenshot of the same app on iOS"></a></p>
  
  <p>Here is the layout code:</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"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:id="@+id/coordinatorRootLayout"
      android:background="@android:color/background_light"
      android:fitsSystemWindows="true"
      &gt;
  
  
  &lt;android.support.design.widget.AppBarLayout
              android:id="@+id/android_appbar_layout"
              android:layout_width="match_parent"
              android:layout_height="220dp"
              android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"&gt;
  
              &lt;android.support.design.widget.CollapsingToolbarLayout
                  android:id="@+id/collapsingToolbarLayoutAndroidExample"
                  android:layout_width="match_parent"
                  android:background="#fff"
                  app:collapsedTitleGravity="left"
                  app:expandedTitleTextAppearance="@color/card_outline"
                  android:layout_height="match_parent"
                  app:layout_scrollFlags="scroll|exitUntilCollapsed"
                  android:fitsSystemWindows="true"
                  app:expandedTitleGravity="center_horizontal"
                  app:contentScrim="?attr/colorPrimary"
                  app:statusBarScrim="?attr/colorPrimary"
                  app:expandedTitleMarginStart="32dp"
                  app:expandedTitleMarginEnd="48dp"&gt;
  
              &lt;ImageView
                      android:id="@+id/parallax_header_imageview"
                      android:layout_width="match_parent"
                      android:layout_height="match_parent"
                      android:scaleType="fitXY"
                      android:src="@drawable/orange_triangle"
                      app:layout_collapseMode="parallax"
                      app:layout_collapseParallaxMultiplier="0.8"/&gt;
  
  
                  &lt;ImageView
                      app:expandedTitleGravity="center_horizontal"
                      android:id="@+id/someImage"
                      android:layout_width="100dp"
                      android:layout_height="100dp"
                      android:src="@drawable/circle"
                      android:layout_gravity="center_horizontal"
                      app:layout_collapseMode="parallax"
                      app:layout_collapseParallaxMultiplier="-1"
                      /&gt;
                  &lt;android.support.v7.widget.Toolbar
                      android:id="@+id/toolbar_android"
                      android:layout_width="match_parent"
                      android:layout_height="?attr/actionBarSize"
                      app:layout_collapseMode="none"
                      app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
                      app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" /&gt;
  
              &lt;/android.support.design.widget.CollapsingToolbarLayout&gt;
  
  
          &lt;/android.support.design.widget.AppBarLayout&gt;
      &lt;android.support.v4.widget.NestedScrollView
              android:id="@+id/nested_scroll_view"
              android:layout_width="match_parent"
              android:layout_height="match_parent"
              android:fillViewport="true"
              app:layout_behavior="@string/appbar_scrolling_view_behavior"&gt;
  
              &lt;LinearLayout
                  android:id="@+id/linear_layout_android"
                  android:layout_width="match_parent"
                  android:layout_height="match_parent"
                  android:padding="15dp"
                  android:background="@color/off_white"
                  android:layout_gravity="center_horizontal"
                  android:gravity="center_horizontal"
                  android:orientation="vertical"&gt;
  
                  &lt;GridView
                      android:id="@+id/gridview_parallax_header"
                      android:layout_width="fill_parent"
                      android:layout_height="fill_parent"
                      android:columnWidth="100dp"
                      android:gravity="center"
                      android:numColumns="auto_fit"
                      android:stretchMode="columnWidth" /&gt;
  
              &lt;/LinearLayout&gt;
  
          &lt;/android.support.v4.widget.NestedScrollView&gt;
  
  
      &lt;/android.support.design.widget.CoordinatorLayout&gt;
  </code></pre>
  
  <p>and here is what I am getting as output
  How can use an icon with the title text?</p>
  
  <p><a href="https://i.stack.imgur.com/YmGkB.gif" rel="noreferrer"><img src="https://i.stack.imgur.com/YmGkB.gif" alt="enter image description here"></a></p>