timer in message application

HELLO Developers, I have taken over a project i开发者_StackOverflow中文版n android environment which i am completely new to, which imbibes a timer facility so that user can time his sms to be sent. Which messaging API will prove to be a help in this. Hoping to get good response from your side.

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You don't need a messaging API. SMS sending is included in the Android SDK. To delay the sending I would recommend to use a Timer and schedule it with an delay:

http://developer.android.com/reference/java/util/Timer.html#schedule(java.util.TimerTask, long)