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.




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.

4431 posts

Uber Geek
+1 received by user: 1257


  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.

 
 
 
 


5871 posts

Uber Geek
+1 received by user: 851

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..

2915 posts

Uber Geek
+1 received by user: 414

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.

4112 posts

Uber Geek
+1 received by user: 626

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:





News »

Huawei Mate 10: Punchy, long battery life, artificial intelligence
Posted 20-Nov-2017 16:30


Propel launch Disney Star Wars Laser Battle Drones
Posted 19-Nov-2017 21:26


UFB killer app: Speed
Posted 17-Nov-2017 17:01


The case for RSS — MacSparky
Posted 13-Nov-2017 14:35


WordPress and Indieweb: Take control of your online presence — 6:30 GridAKL Nov 30
Posted 11-Nov-2017 13:43


Chorus reveals technology upgrade for schools, students
Posted 10-Nov-2017 10:28


Vodafone says Internet of Things (IoT) crucial for digital transformation
Posted 10-Nov-2017 10:06


Police and Facebook launch AMBER Alerts system in NZ
Posted 9-Nov-2017 10:49


Amazon debuts Fire TV Stick Basic Edition in over 100 new countries
Posted 8-Nov-2017 05:34


Vodafone VoIP transition to start this month
Posted 7-Nov-2017 12:33


Spark enhances IoT network capability
Posted 7-Nov-2017 11:33


Vocus NZ sale and broadband competition
Posted 6-Nov-2017 14:36


Hawaiki reaches key milestone in landmark deep-sea fibre project
Posted 4-Nov-2017 13:53


Countdown launches new proximity online shopping app
Posted 4-Nov-2017 13:50


Nokia 3310 to be available through Spark New Zealand
Posted 4-Nov-2017 13:31



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.