Question

I’m currently plugging away at my first Android app, and I’ve run into a hitch. I have a main activity that will launch a service, and every time the screen turns on, it’s supposed to make a toast. The only problem is that I’ve never used a Service before, and I don’t know how to make it interact with my Activity, ie: the toast will be a user-defined string.

I’m not asking for anyone to write it for me, I just need some help being pointed in the right direction.

In case the above wasn’t clear, basically, I want a service that will start when the main activity says start, then make a toast every time something happens (like the screen turning on or the phone being unlocked), and also stop only when the user presses stop.

Thanks for your help!

Answer 1

Look at BroadcastReceiver it will pick up system notifications if you register it in the androidmanifest.xml with IntentFilters. You can then use it to start a Service or an Activity with a PendingIntent