colors.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
 
    <color name="grey">#cccccc</color>
    <color name="sunshine_light_blue">#ff64c2f4</color>
 
</resources>

touch_selector.xml

<?xml version="1.0" encoding="utf-8"?>
 
<selector xmlns:android="http://schemas.android.com/apk/res/android">
 
    <!-- State when a row is being pressed, but hasn't yet been activated (finger down) -->
    <item android:state_pressed="true"
        android:drawable="@color/grey" />
 
    <!-- Used when the view is "activated". -->
    <item android:state_activated="true"
        android:drawable="@color/sunshine_light_blue" />
 
    <!-- Default, "just hangin' out" state. -->
    <item android:drawable="@android:color/transparent" />
</selector>