Syncing in background?

Discussion in 'iPad' started by Crosbie, Jun 17, 2010.

  1. Crosbie macrumors 6502a

    Crosbie

    Joined:
    May 26, 2010
    Location:
    Brighton, UK
    #1
    Just plugged my iPad in to sync with iTunes 9.2 and found that it didn't ever go to the Sync in Progress screen.

    It appeared to go through the whole process - a long old backup, download purchases, update files, etc - but never interrupted my game (of Words With Friends HD).

    Is this new, a fluke, or have I just never noticed this before?
     
  2. Crosbie thread starter macrumors 6502a

    Crosbie

    Joined:
    May 26, 2010
    Location:
    Brighton, UK
    #2
    Okay, plugged back in, got the Sync screen as normal.

    One-off? Does it not go to that screen if you're in an app already? Anyone else had this behaviour?
     
  3. Pushkar macrumors 6502a

    Joined:
    Jun 9, 2009
    Location:
    SW London, UK
    #3
    Maybe it does when your in an app, I've seen it before but don't know how lol, noticed it on an iPhone as well.
     
  4. sapporobaby macrumors 68000

    sapporobaby

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    #4
    I've seen this as well. Very strange. Happened with iTunes 9.1.x but not with the new.
     
  5. ChrisGonzales90 macrumors 6502a

    ChrisGonzales90

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    May 29, 2010
    Location:
    Hillsboro, Oregon USA.
    #5
    Wireless syncing will come in iOS 5 and iTunes 11. Background syncing in iOS 6 and iTunes 12.
     
  6. sapporobaby macrumors 68000

    sapporobaby

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    #6
    Facts please with links....
     
  7. Shoesy macrumors 6502a

    Shoesy

    Joined:
    Jun 21, 2007
    Location:
    Colchester, UK.
    #7
    On similar theme, will we be able to download content in the background with iOS4?
     
  8. Zcott macrumors 68020

    Joined:
    Oct 18, 2009
    Location:
    Belfast, Ireland
    #8
    I don't think so - it'll allow tasks to complete in the background, though. You'd have to open the app, start downloading, then quit the app like iTunes does when downloading podcasts or music.
     
  9. oftheheavens macrumors 68000

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    #9
    he was kidding....
     
  10. sapporobaby macrumors 68000

    sapporobaby

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    #10
    Dear God, add a smiley face please. :)
     
  11. jtara macrumors 65816

    Joined:
    Mar 23, 2009
    #11
    It seems it's actually possible for an app to hang-around after it's been asked to terminate. That *shouldn't* get through the App Store approval process, but I think it sometimes does.

    I'm a developer, and I've had this happen to me with apps that are in development. However, it may be different for a debug build of an app vs. a production build. That is, debug builds may be more susceptible to this. In any case, I've caught my app still running (as evidenced by system monitor apps, like FreeMemory) after I had "closed" it.

    We all should be wary of apps due to this possibility. I can see some sneaky developer putting some timing check in their app to evade detection during app testing by Apple and have some code activated later, once out in the wild. This goes for ANY kind of app activity, not just sneakily dropping into background and continuing to run doing who-knows-what...
     
  12. ChrisGonzales90 macrumors 6502a

    ChrisGonzales90

    Joined:
    May 29, 2010
    Location:
    Hillsboro, Oregon USA.
    #12
    See bellow

    Yes I was.

    But then again you'll never know. Wireless syncing and even background syncing is bound to come.
     
  13. jtara macrumors 65816

    Joined:
    Mar 23, 2009
    #13
    Well, actually, we already have wireless syncing of selected information, with MobileMe.

    Background backups (as opposed to sync) are problematical. You can backup an app while it is in use, but not it's data. You really want to back-up the data while the app is not running. Otherwise, you are potentially getting an inconsistent snapshot of it's data.

    Sync/backup is a complicated mess that most users will never understand. Some stuff syncs to a directory, some syncs to a "cloud", some is just backed-up (as opposed to 2-way sync) and it's keep in several different locations. (The "backup" is just app data files and a few system-wide data files. Apps are kept in an iTunes directory, and not specific to a particular device. Music, of course, is synced to iTunes. Pictures are synced either to a directory tree or iPhoto...) The 'backup' is under Library/Application Support/MobileSync, but is not a complete bundle of "everything" on your device. The backup is "de-duplicated" in this way, but it makes it hard for the user to understand.

    If you want to "backup your backup", you'd have to have considerable technical knowledge to know what to backup. Of course, you should be backing-up your Mac's home directory (assume you have a Mac) and that WILL catch everything. But many people will exempt iTunes from frequent backups, choosing to back it up separately (less frequently) or not at all because it can be very large. This would lead in incoherent device backups.
     

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