Search for library (not working)

app/src/main/res/menu/library.xml

@@ -0,0 +1,17 @@
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools" tools:context=".MainActivity">
+    <item
+        android:id="@+id/action_search"
+        android:title="@string/action_search"
+        android:icon="@drawable/ic_action_search"
+        android:orderInCategory="100"
+        app:showAsAction="collapseActionView|ifRoom"
+        app:actionViewClass="android.support.v7.widget.SearchView"/>
+    <item
+        android:id="@+id/action_refresh"
+        android:title="@string/action_refresh"
+        android:icon="@drawable/ic_action_refresh"
+        android:orderInCategory="1"
+        app:showAsAction="ifRoom" />
+</menu>

app/src/main/res/menu/main.xml

@@ -1,6 +0,0 @@
-<menu xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools" tools:context=".MainActivity">
-    <item android:id="@+id/action_github" android:title="@string/action_github"
-        android:orderInCategory="100" app:showAsAction="never" />
-</menu>

app/src/main/res/values/strings.xml

@@ -30,5 +30,8 @@
 
     <string name="hello_world">Hello world!</string>
     <string name="action_settings">Settings</string>
+    <string name="action_search">Search</string>
+    <string name="action_refresh">Refresh</string>
+    <string name="library_search_hint">Title or author...</string>
 
 </resources>