Android_SearchView_On_ActionBar.java

@Override
public boolean onCreateOptionsMenu(Menu menu) {
	MenuInflater inflater = getMenuInflater();
	inflater.inflate(R.menu.search_menu, menu);
	MenuItem searchViewItem = menu.findItem(R.id.app_bar_search_id);
	final SearchView searchView = (SearchView) MenuItemCompat.getActionView(searchViewItem);
	searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
		@Override
		public boolean onQueryTextSubmit(String query) {
			searchView.clearFocus();
			return false;
		}

		@Override
		public boolean onQueryTextChange(String newText) {
			
			// what want to do
			return false;
		}
	});
	return super.onCreateOptionsMenu(menu);
}

// inflater, search_menu, app_bar_search_id, searchView

search_menu.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/app_bar_search_id"
        android:icon="@drawable/search_icon"
        android:title="@string/search"
        android:iconTint="@color/white"
        app:showAsAction="ifRoom|withText"
        app:actionViewClass="android.widget.SearchView" />
</menu>

<!-- app_bar_search_id, search_icon, white -->