trapping sms send button


Licensed User
Longtime User
my general problem is that i need to add a number as prefix before a call or a sms to send. i'm not interested to use the contact list. i must add this number anyway.
i need to use the standards applications inside the phone

so :

CALLS --> i solved with intent action.NEW_OUTGOING_CALL in the manifest and broadcastreceiver in a service. it traps the red button before to make a call. it works fine.

SMS --> NOT SOLVED . i cannot find the right intent for trapping the button of "send sms"

any idea ?

many thanks