web3_5230369/res/drawable/hfb_btn.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
    <item 
        android:state_focused="true" 
        android:state_pressed="true"
        android:drawable="@drawable/hfb_btn_pressed" />
    <item 
        android:state_focused="false"
        android:state_pressed="true"
        android:drawable="@drawable/hfb_btn_pressed"/>
    <item 
        android:state_focused="false"
        android:drawable="@drawable/hfb_btn_normal" />

</selector>