Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.
Buying anything on Amazon? Please use the Geekzone Amazon aff link.




434 posts

Ultimate Geek
+1 received by user: 12
Inactive user


Topic # 111559 7-Nov-2012 13:09 Send private message

maybe but is is just me but i have a habit of constantly closing these to save battery. Why can't they auto-close after say 12 or 24 hours

Filter this topic showing only the reply marked as answer Create new topic
42 posts

Geek


  Reply # 713503 7-Nov-2012 13:24 Send private message

They aren't open in the background.

Recent apps reside in memory but aren't taking up processing cycles or resources, thus aren't really using battery.iOS might seem like it is multitasking, but it isn't, at least for third party apps. It looks like it is because of the 'resume' feature of apps that allow them to hold a freeze state and resume right where they left off.

Rest assured, most apps actually close as soon as you hit home.

There are a few exceptions to this, namely first party apps, such as mail and music player, clocks, and so on (and of course notification centre). And a FEW apps can continue to be open if they use a handful of prescribed apis, such as voice recording (for example skype for calls), mapping Apis (for turn by turn) music playing etc. Some apps are allowed to remain open for up to 10 minutes if assigned a task duh as downloading a file.

Other than that apps are close when you hit the home button. The multitasking tray is nothing more than a glorified 'recently opened apps' list.

2869 posts

Uber Geek
+1 received by user: 477


  Reply # 713505 7-Nov-2012 13:27 Send private message

qwerty7: Why can't they auto-close after say 12 or 24 hours


They do, in minutes.

Have a look here and here.

4129 posts

Uber Geek
+1 received by user: 213

Trusted
Subscriber

  Reply # 713560 7-Nov-2012 15:25 Send private message

I've heard a few people say that the apps don't keep running, but that doesn't explain why they can sometimes chew through the battery. Shortly after getting my first iPhone (4S), before I learned to close apps I eventually ended up with so many running that the battery was still being drained even with the charger connected! (I was also tethering at the time). That was when I learned how to close them, and after doing so the battery began to recharge.



434 posts

Ultimate Geek
+1 received by user: 12
Inactive user


  Reply # 713619 7-Nov-2012 16:58 Send private message

hmm thats interesting so basically i have been wasting my time removing apps out of my recently opened list 2 or 3 times a day

well i learnt something today..

2567 posts

Uber Geek
+1 received by user: 261

Trusted
Subscriber

  Reply # 713926 8-Nov-2012 08:22 Send private message

Behodar: I've heard a few people say that the apps don't keep running, but that doesn't explain why they can sometimes chew through the battery. Shortly after getting my first iPhone (4S), before I learned to close apps I eventually ended up with so many running that the battery was still being drained even with the charger connected! (I was also tethering at the time). That was when I learned how to close them, and after doing so the battery began to recharge.


This would be my experience as well.  And watching the console when tethered to Xcode, you can actually see that hitting home does not result in any apps closing.  However, opening the task tray, tapping and holding, and hitting close results in iOS executing "kill -9" on the process (any *nix folks here would recognise that!)

I would say that "hitting home almost always closes the app" is a huge oversimplification of what's more likely to be a convoluted array of rules.

3380 posts

Uber Geek
+1 received by user: 232

Moderator
Trusted
Subscriber

  Reply # 713938 8-Nov-2012 09:02 Send private message

Read this to clarify your mistaken understanding of how iOS multitasking works here: 

http://speirs.org/blog/2012/1/2/misconceptions-about-ios-multitasking.html

http://daringfireball.net/2012/01/ios_multitasking

Filter this topic showing only the reply marked as answer Create new topic




Twitter »
Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





Trending now »

Hot discussions in our forums right now:

Spark customers get Lightbox free for 12 months
Created by freitasm, last reply by nyquist on 25-Jan-2015 10:24 (128 replies)
Pages... 7 8 9


Windows 10 News - 22 Jan
Created by Regs, last reply by tdgeek on 27-Jan-2015 06:43 (111 replies)
Pages... 6 7 8


Help me choose a new wagon for the family (and me)
Created by Disrespective, last reply by Disrespective on 24-Jan-2015 12:24 (74 replies)
Pages... 3 4 5


How (not) to run a hotel
Created by MikeAqua, last reply by BTR on 26-Jan-2015 16:06 (68 replies)
Pages... 3 4 5


Negative gearing question?
Created by edwinprakash, last reply by logo on 23-Jan-2015 14:42 (69 replies)
Pages... 3 4 5


Police Speed Campaign - Summer 2014/2015
Created by nzkiwiman, last reply by nzkiwiman on 27-Jan-2015 08:50 (84 replies)
Pages... 4 5 6


Police above the law ?
Created by heylinb4nz, last reply by MikeAqua on 26-Jan-2015 14:27 (116 replies)
Pages... 6 7 8


Best place to buy mid-level laptop with SSD?
Created by SumnerBoy, last reply by joker97 on 26-Jan-2015 14:55 (62 replies)
Pages... 3 4 5



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.