path: root/res/drawable/footbar_btn_checkin_style.xml

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

    <item android:state_pressed="true" android:drawable="@drawable/footbar_checkin_1"></item>
	<item android:state_pressed="false" android:drawable="@drawable/footbar_checkin"></item>

</selector>