title: Ripple effect not working in relative layout with image
body: <p>Ripple effect is not working with the below code! Using the below relative layout as item in recycler view. Building with Xamarin platform.</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
      android:id="@+id/relativelayout"
      android:layout_width="fill_parent"
      android:layout_height="120dp"
      android:paddingBottom="1dp"
      android:focusable="true"
      android:clickable="true"
      android:foreground="?android:attr/selectableItemBackground"&gt;
      &lt;ImageView
          android:id="@+id/bugImage"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:scaleType="centerCrop" 
          android:src="@drawable/grey_small"
          android:clickable="false"/&gt;
      &lt;TextView
          android:id="@+id/textBugName"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_alignLeft="@id/bugImage"
          android:layout_alignTop="@id/bugImage"
          android:layout_alignBottom="@id/bugImage"
          android:gravity="left"
          android:text="Klebsiella pneumoniae"
          android:textColor="#ffffffff"
          android:textSize="30dp"
          android:layout_marginRight="145dp"
          android:padding="10dp"
          android:shadowColor="#000000"
          android:shadowDx="0"
          android:shadowDy="0"
          android:shadowRadius="25"
          android:clickable="false"/&gt;
      &lt;TextView
          android:id="@+id/textBugCount"
          android:layout_width="135dp"
          android:layout_height="wrap_content"
          android:layout_alignRight="@id/bugImage"
          android:layout_alignTop="@id/bugImage"
          android:layout_alignBottom="@id/bugImage"
          android:gravity="right"
          android:text="234"
          android:textColor="#ffffffff"
          android:textSize="30dp"
          android:padding="10dp" 
          android:shadowColor="#000000"
          android:shadowDx="0"
          android:shadowDy="0"
          android:shadowRadius="25"
          android:clickable="false"/&gt;
  &lt;/RelativeLayout&gt;
  </code></pre>
  
  <p>I have already tried this <code>android:foreground="?android:attr/selectableItemBackground"</code> and it didn't work!</p>
  
  <p>How to fix this? I tested it on api 22.</p>