Updating UI from a service (using a handler?)

Question

I am trying to update my UI in FirstActivity when I receive a notification but is confused by runOnUiThread , Runnable and Handl

Answer 1

My 1st instinct is that you should instead have the Activity bind to your service and handle the UI update on its side instead of the Service directly modifying the Activity.

See more info here:
http://developer.android.com/reference/android/app/Service.html#LocalServiceSample

And an example here:
Example: Communication between Activity and Service using Messaging