Autorespond to SMS received through broadcast receiver?

I am doing application on autoresponder, I mean, am receiving sms and sending reply automatically, where user choose when he is busy? my problem is, in broadcast receiver, after receiving sms, I put a toast, where user has to respond whether to respond开发者_JS百科 or not? after clicking ok, he has to send reply? how to sort this? how to send a reply?

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This might help you:

Android : Sending an SMS (using the Outbox)

http://github.com/commonsguy/cw-advandroid/tree/master/SMS/Sender/