<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="true" >
		<shape>  
		    <solid
		        android:color="#00000000" />
            <corners  
                android:radius="8dp" />
        </shape> 
    </item>

        <!-- pressed -->
    
    <item android:state_pressed="false">
		<shape>  
		    <solid
		        android:color="#00000000"  />
            <corners  
                android:radius="8dp" />  

        </shape>  
    </item> 
    <!-- default -->
</selector>
