How to start an Activity from a Service?

Question

Is it possible to start an Activity from a Service? If yes, how can we achieve this?

Answer 1

android.app.Service is descendant of android.app.Context so you can use startActivity directly. However since you start this outside any activity you need to set FLAG_ACTIVITY_NEW_TASK flag on the intent.

For example:

Intent i = new Intent(); i.setClass(this, MyActivity.class); i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(i); 

where this is your service.