PersistenceService¶

public class PersistenceService extends Service¶

This service ensures that if the app is backgrounded, it will start back up again within 5 seconds, given that it’s not the system using one of its extreme measures, so that measurements are taken as long as possible. This means that if you install the app on your phone - it’s really hard to get rid of until you adb uninstall it.

Author:	Alan Zhu

Constructors¶

PersistenceService¶

public PersistenceService()¶: Default, necessary constructor

Methods¶

onBind¶

public IBinder onBind(Intent intent)¶

Not useful.

Parameters:	intent – intent that started the service/binder (?)
Returns:	null

onStart¶

public void onStart(Intent intent, int startId)¶

This is the old onStart method that will be called on the pre-2.0 platform. On 2.0 or later we override onStartCommand() so this method will not be called. This came with the Android tutorial and I’m not quite sure why we still have it.

Parameters:	intent – intent that started the service startId – honestly I’m not sure, but it’s not important for us really

onStartCommand¶

public int onStartCommand(Intent intent, int flags, int startId)¶

Starts a thread that checks if the app is in the foreground and puts it there if not.

Parameters:	intent – intent that started the service flags – any flags, although we really don’t use them startId – not sure, not important
Returns:	START_STICKY, so that our service is kept (hopefully)