<?xml version="1.0" encoding="utf-8" ?> 
<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:myapp="http://schemas.android.com/apk/context-auto" >
 
    <item
        android:id="@+id/action_search"
        android:orderInCategory="100"
        android:title="action_search"
        myapp:actionViewClass="android.support.v7.widget.SearchView"
        myapp:showAsAction="always" />
</menu>