My Tuts+ tutorial about Android Telephony and SMS API https://code.tutsplus.com/tutorials/how-to-make-calls-and-use-sms-in-android-apps--cms-28168
My Tuts+ tutorial about Android Telephony and SMS API https://code.tutsplus.com/tutorials/how-to-make-calls-and-use-sms-in-android-apps--cms-28168