【Android】SearchViewを使って検索画面を実装する rel : http://blog.ryochin.xyz/archives/80

search.xml

<!-- res/menu/search.xml -->
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    >

    <item
        android:id="@+id/search_menu_search_view"
        android:orderInCategory="100"
        android:title="@string/search_menu_search_text"
        app:actionViewClass="android.support.v7.widget.SearchView"
        app:showAsAction="always"
        />

</menu>