Just updated to iOS4 and I'm confused about how multitasking works.

Discussion in 'iPhone' started by mojoe24, Aug 21, 2010.

  1. mojoe24 macrumors regular

    Dec 1, 2009
    When I double click home nad then little things pop up it shows every app that I've opened. Do they all remain running or is that just like a most recent list?
  2. w00t951 macrumors 68000


    Jan 6, 2009
    Pittsburgh, PA
    It's not true multitasking, but it works perfectly for most people. If an app supports multitasking, iOS can keep APIs and app files in wired RAM. If an app doesn't, it's like a most recent list.
  3. vincenz macrumors 601


    Oct 20, 2008
    No, they won't remain running, so you won't have to worry about them draining battery.
  4. MrCheeto macrumors 68030


    Nov 2, 2008
    Certain apps perform functions even while not the foremost application.

    For instance, Pandora radio plays audio even in the background. Some media sharing apps will continue to upload or download media in the background, and Safari will continue loading a page in the background.

    All other functions and apps will simply remain in the RAM, not using CPU, necessarily, and thus not draining battery.

    It works almost exactly as a Mac works. After you close all windows in some Mac applications, the app is still loaded in RAM, just not running. Makes 'em faster, yano?

    I do notice that intensive apps such as YouTube will hoard all of the RAM and after watching a video or two, Safari and some other apps will have to re-load data to RAM.

    Just quit apps you're not using, simple.
  5. mojoe24 thread starter macrumors regular

    Dec 1, 2009
    It just seems like its more of a hassle than before if I had to keep quiting apps twice. I was afraid that they would remain running and kill battery. I have to say though, I think I'll be missing ProSwitcher/Backgrounder (jailbroken). Though iOS4's multitasking seems like ti should cover some of the stuff.

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