ScreenFilter/res/drawable/widget_icon.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:drawable="@drawable/icon_pressed" android:state_pressed="true"/>
    <item android:drawable="@drawable/icon" android:state_focused="true" android:state_pressed="false"/>
    <item android:drawable="@drawable/icon"/>

</selector>