How to cancel Android notifications?

Question

I am making an app where the user can set an alarm based on GPS location. I only want 1 alarm to be active at any one time. So, when the user sets a 2nd alarm, I want to can

Answer 1

You need to make sure you are always referencing the same instance of your NotificationManager. Different instances will produce different notifications. I'd recommend using a service to manage notifications.

http://developer.android.com/guide/topics/fundamentals.html