Published on July 9, 2017
Android 4.4 KitKat introduces the new SMS APIs as well as the new concept of a default SMS app. This video discusses these new APIs and how your app should use them to send and receive SMS and MMS messages.
from video –
Sample code available here:
Android Developer Blog post on Android 4.4 KitKat SMS APIs:
Android Protip on using booleans in your AndroidManifest.xml: