v21 checkable selector with ripples
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_activated="true" android:drawable="@color/mycolor"/>
<item android:drawable="@drawable/ripple_item_background"/>
</selector>
<?xml version="1.0" encoding="utf-8"?>
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
android:color="@color/mycolor">
<item android:id="@+id/mask">
<color android:color="@android:color/white" />
</item>
</ripple>