Here is the link to implement a searchview in action bar for android. http://www.android86.com/android-advanced/action-bar-search-view/
according to the above example i've implemented action bar search view. Now once the user starts typing inside the search bar i want to provide him "suggestions". These suggestions should be available from the array list that i've retrieved via shared pref. How should i implement this?
You can't show search suggestions from a ArrayList directly. You have to user a content provider. See the docs