I know this has been asked ALOT on here, but I have been scouring the interwebs for hours and I have even reused some of my previous code for receiving sms\' and I got...not
I do not know if this is your problem but you should definitelly try this:
Instead of ".MessageReceiver" put android:name = "com.encima.smsreceiver.MessageReceiver"
".MessageReceiver"
android:name = "com.encima.smsreceiver.MessageReceiver"
This is fix that workout many times for me when something doesn't get called.