Android Question help for Service SMS and Bluetooth

I try to create an application for remote surveillance. Proper operation "activity" I want to convert to continuous monitoring service.
the first module detects activity and launches the bluetooth before starting the service.
service manages the bluetooth communication and SMS.
I can not declare a EditText object has the necessary bluetooth communication
if Global declared :
Error description: Undeclared variable 'txtsend' is used before it WAS Any Assigned value.
if process_global declared:
Error description: Can not access object from sub Process_Globals activity.
if locally declaring at the function:
java.lang.RuntimeException: Object shoulds be initialized first (EditText).

excuse me for my google english
thank for your help

Patrick