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How to exit/close apps

Discussion in 'Android General Discussions' started by dbronstein, Jan 3, 2010.

  1. dbronstein
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    dbronstein Member

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    Most of the apps don't have exit or close options, so how do you close them? I have a task killer, but it seems that you wouldn't really need one if the apps had exit or close options so you knew for sure that they were shutting down when you are done.
  2. Backnblack
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    Backnblack Premium Member Premium Member

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  3. dbronstein
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    dbronstein Member

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    Yeah, I've read the discussions on the task killers. It would just be nice if the apps had an exit option so you could be sure you are closing them if you want. Thanks for the reply.
  4. JayMonster
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    JayMonster New Member

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    It is a hard habit to break, but since the OS handles what is know as garbage collection (cleaning out unused memory), it is actually better for the OS to do it. When an app closes itself, it may not report back properly the free space to the OS and thus you may not be getting the actual benefit you believe you are by having an Exit "button"

    The same holds true with killing task (and as Backnblack pointed out), they are not only unnecessary, but in some cases can be counter productive since if you kill a process that needs to to some clean up before closing you wind up with corrupt data.
  5. dnvnk
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    dnvnk New Member

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    I have yet to use an app that actually has a "close" feature
  6. dabuda
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    dabuda New Member

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    Slacker Radio has a close button
  7. metsnfins
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    metsnfins New Member

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    i understand the let the system close it out itself argument, except i find that it eats battery power when you leave them open
  8. Garemlin
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    Garemlin Developer Relations

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    I am finding lately that even backing out is not closing them completely. I made a post yesterday about changes in my battery usage lately. Some apps that aren't even running are eating the battery. Perfect example is Flixter Movies and the browser. My Droid has been off charge for 5 hours and has not even been used at all. Flixter is showing 21% usage. I went in to my task killer and it isn't even showing it running. Another is Beautiful Widgets. A few days ago it ate up 51% of my battery and since unplugged today shows 17%. I know BW runs all of the time but it has never ate up the battery like that. I also had an issue with the browser the other day. I always make sure I back out, close all open windows and kill it with ATK. It had used 92% being off charge for 3 hours.
  9. TimChgo9
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    TimChgo9 New Member

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    Experiment I ran about a two weeks, or so, ago.

    I decided to ditch the ATK and let Android "close" all unused apps. I checked my phone last Tuesday morning, made a phone call, messaged my son, used ATK to close everything, and decided to not use ATK for the remainder of the day.

    An hour later: FB, Alarm Clock, Messaging, Browser, You Tube, DigiClock Widget, Corporate Calender, Music Player and SportsTap were all running. I don't know why You Tube, Corporate Calender, Camera and Music player started running, I didn't start those apps, and didn't use them at all. So, I left them open, since Android "closes" all apps that aren't being used. I noted that my battery, which is normally about 80% by noon, was down to 60% by noon, and needed a charge by 3 o'clock. I didn't do anything out of the ordinary with my phone... Oh yeah, when all of those apps are running, after all Android "closes" apps that aren't being used, it causes the phone function to FC when trying to hang up, or when trying to open the phone to make a call, and I had about 20MB of memory available.

    Some of the apps, like Slacker, Pandora, SportsTap, FB ,and WeatherBug have to be running in the background because of the associated widgets on my home screens, but, apps that I don't open, should not be resident in memory. Camera is the biggest killer of the battery and it starts automatically.

    Is there something in my system, perhaps an application, that is accessing all of this stuff, and doesn't need to? Anyway, the next day, I used ATK when needed, and my battery behaved like it always did, 80% by noon, and not needing a charge until evening, or even, by the time I went to bed. Whenever I use applications, esp, if I use the phone to browse the net, play a game, or use Dex Knows, or something, I always kill the apps after closing.

    Say what you want, but, it extends my battery life, and my phone runs better. Apps, after being used, stay resident in memory, and take up space.
  10. hookbill
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    hookbill Premium Member Premium Member

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    The problem doesn't seem to be using a task killer itself, it's your choice of a task killer. ATK is suspect of being a possible problem app.

    I use Task Panel, and never have had an issue with it. I rarely use it, I doubt if I've used it in a week and usually it's just to kill my browser so the browser resets.

    Just something to keep in mind should you start developing some problems on your Droid.
  11. CoolBreeze
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    CoolBreeze New Member

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    Unless the developer explicitly provides for a way of closing the application by calling finish() on the activity the Android OS will handle it. Most developers it seems prefer to just let Android handle the cleanup, which will happen when memory starts to get low and there are activities that have been sitting idle for a while.

    It seems that even though Android will automatically handle the cleanup, that it's just good programming practice to offer users the ability to explicitly close down apps on demand.
  12. TimChgo9
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    TimChgo9 New Member

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    Maybe I will give Task Panel a go.. I am on my second Droid, (got it replaced last night) and not happy about it right at the moment. I don't think ATK has given me any problems, but, I'll try Task Panel, and see if there is a difference....
  13. Sleeve
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    Sleeve New Member

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    Unless you have a privacy/logoff type concern with apps like Personal Assistant, there is no need to close an app.

    Apps in memory do not "take up space." They are a specific pattern of ones and zeroes rather than a random pattern. It takes no more power to have an idle app in memory than not. A one does not cost more power than a zero. Just because an app is loaded does not mean it is using resources. They don't have heartbeats.

    The impact to battery life of needing to kill an app when the Android OS feels like it rather than when you feel like it with a task killer is no different.

    There are a few reasons for apps to load themselves and stay loaded. First, they are state-aware. The phone app needs to be running so you get your calls, bluetooth so you can use a headset, alarm clock to notify you, calendar to remind you about appointments, etc... Second, the app takes a long time to load and it wants to be partially ready. Every Windows computer that has Quicktime installed is an example of this: there is a stub process hanging around waiting to load QT quickly when you want to use it. You may use QT once a month, but it's there every time you boot and always. Camera would be an example of this. When you want to take a picture, you want to take it right now. Some would say the Droid camera already takes time. The fact that it partially loads itself reduces that time.

    On the 80% versus 60% usage, from the battery usage screen, which items on that list were lower by a total of 20%? Specifically, between a day that you make it to noon at 80% and a day you drop to 60%, what are the battery usage differences on the display and the phone categories?

    I know my daily usage of my Droid varies too much for a one day test to affect whether I would return to using a task killer. Some days, it'll sit on the table most of the day. The next, I'll sit in the car while waiting for others and play Nintaii and Space Physics.
  14. NOLAsailing
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    NOLAsailing New Member

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    My issue is the music players that don't have a quick way to close the app. You can't leave a program running if it's making noise! To me, this is a major shortcoming.
  15. eliassami5
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    eliassami5 New Member

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    what are you talking about? just hit the pause button and that effectively closes the app. In Pandora it has a Quit button so that it starts a whole new song when you load it up again.
  16. NOLAsailing
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    NOLAsailing New Member

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    I'll tell you what I'm talking about! It's that...umm... oh.

    I guess you're right.

    Thanks.
  17. jakenovak
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    jakenovak New Member

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    I second the recommendation for ATK... I have it perched in my notification bar, and personally I think it's the easiest way to kill all the background services that normally popup without my knowing (it remembers what apps you killed in the past, so most times you just have to select "KILL APPS").

    I'm sure most of them don't take up much battery, but sometimes the amount of them suddenly spawning is ridiculous. With as much as I use my device in a day, any minute I can gain from killing them is a gift...
  18. aaf709
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    aaf709 Nice Guy Premium Member

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    Once I had a problem with the GPS (it indicated that East was North). I took it to the Verizon store and the told me the problem was that I had over a 100 apps running in the background. Now that I think about it, they were probably looking at the list of my apps, not the ones currently running.

    P.S. Power off didn't change a thing, nor was removing a battery. They ended up doing a reset. I had done the first two before I went to the store. Power off should stop all apps, right?
  19. Talon8Ya
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    Talon8Ya New Member

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    I generally don't do this but I will share a bit of my exp as a systems admin and have linux servers at my company under my oversight.

    Linux in general does do a good job of cleaning up unused processes but it is not fool proof. It can and will get bogged down with programs in memory that are not running if not properly configured.

    With android I have noticed that apps not used open by themselves which yes is well and good for fast start and use but when apps you have never used open by themselves then your O/S has a coding and or a permission issue.

    I have never used nor even opened the corp calender or several other progs and they will be resident in memory. This should not happen. The O/S should leave them off and instead load apps that have been or are being used.
    I have seen this problem with SuSE Server and Red Hat as well as Fedora.
    The way I fix it on the servers is by editing the permissions to stop this kind of behavior and limit programs to opening in memory to ones that are used the most first and on down to least used. Progs and apps that are never used do not get auto started. This keeps things running smooth and makes things work more smoothly for the apps and progs that do get used.

    I also don't like the idea of having to back out of several pages of browsing just to close the browser without using a task killer prog.

    While these are by no means show stoppers they are something to keep an eye on.

    The debate rages about task killer progs and I will not reopen it here other than to state that I do use Advanced Task Killer to close programs that open themselves despite me never using them. I don't use it to kill anything else.

    I hope that 2.1 when it comes to the Droid does better at managing programs or at least opens up better user management and control of apps.
  20. TimChgo9
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    TimChgo9 New Member

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    Thank you for that post. It makes perfect sense. I never use Corporate Calender, or You Tube, and those apps are always resident in memory... along with some others I don't use either, and I am always finding those apps open... I set my ATK to close all of the unchecked apps..
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