Block outgoing text

How to design the BroadcastReceiver class that will block outgoing SMS.

abortBroadcast(); does not work. Any help will be appreciated.

if ((actionType.equals(Intent.ACTION_SEND)))
开发者_如何转开发{
    setResultData(null); // I tried this and abortBroadcast(); as well
}

No, you can not though you can intercept outgoing sms using content observer