What happens to an Android thread after the Activity that created it is destroyed?

Question

In my Android app, the main Activity will sometimes start a Thread to load data from a server. This thread modifies the app\'s database and edits some important files. AFAIK,

Answer 1

You should be using a service:

Because a process running a service is ranked higher than a process with background activities, an activity that initiates a long-running operation might do well to start a service for that operation, rather than simply create a worker thread—particularly if the operation will likely outlast the activity.

Take a look here: http://developer.android.com/guide/topics/fundamentals/processes-and-threads.html#Lifecycle (where the text I pasted originates)