I'm running a service on my Android Application to listen for SNMP trap messages (calling my trap receiver's listen() method) on a port. When a PDU is recieved on that port, a Notification is meant to be sent to my phones status bar.
However, when I try sending a test trap that will automatically be picked up by my receiver class, it gets the PDU but no Notification is sent. I'm getting a NullPointerException on this line:
The line was originally:
The first line was an attempt at solving the problem as I thought the issue was it was not getting an Activity Context to call NOTIFICATION_SERVICE so I found this solution where the current Activity on top of the stack is stored in an Activity variable and we can call it using the ref_currentActivity() method and get the Context from that but it doesn't seem to work. Here's the code for my trapReceiver class:
Use Context object available in onReceive() method.
NOTE: Both Activity and Service extends Context , so if you are launching Notification from Service/Activity , you can simply use this.
Thank you for the reply Sahil, however I tried your technique and I was still getting a NullPointerException. I eventually solved the problem by simply passing in the context of my service into the reciever class and assigning it to a variable there.
subject: Problem with Notifications when calling them from a Non-Activity class