app/src/main/res/menu/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"
xmlns:tools="http://schemas.android.com/tools">
<item
android:id="@+id/menuSubscribe"
android:icon="@drawable/ic_baseline_notifications_white_24"
android:title="@string/subscribe"
app:showAsAction="ifRoom"/>
<item
android:id="@+id/menuUnsubscribe"
android:icon="@drawable/ic_baseline_notifications_off_white_24"
android:title="@string/unsubscribe"
app:showAsAction="ifRoom"
tools:visible="false"/>
</menu>