Develop Bugs

"Don't keep activities" - anybody use it?

Love the phone but a few times the launcher has redrawn after exiting an app because of most likely memory issues. Anybody using this option? Assuming over time this would keep more memory free and reduce this issue. Any thoughts?
Sent from my Galaxy Nexus using xda premium

mobilehavoc said:
Love the phone but a few times the launcher has redrawn after exiting an app because of most likely memory issues. Anybody using this option? Assuming over time this would keep more memory free and reduce this issue. Any thoughts?
Sent from my Galaxy Nexus using xda premium
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This is one of the reasons why I don't like that Google included these developer options pre-installed on this phone. They're developer options for a reason, we can install them if we need to.
This feature is designed so that developers can test their app to be sure that data is properly saved when is no longer in the foreground. For example, if a user receives a phone call or jumps to another app, the app needs to do what is necessary to save it's data. At times, Android can kill a process in the background. If the user plans to go back (perhaps they finished the phone call), they want to see what it is they were working on last. The developer is supposed to handle this case by rebuilding everything as it was before (to provide that seamless experience for the user when switching between apps).
This debug feature helps us test that it works.
For the average user, all you're really more likely to do is slow down your apps. As they will have to rebuild themselves when you resume them, and you may even open yourself to more quirky bugs (for those apps that didn't properly test the above scenario).
So please don't enable it unless you're doing it for development purposes. My 2 cents.
*EDIT* Here's a page from the Android Dev Guide justifying my explanation:
http://developer.android.com/guide/developing/debugging/debugging-devtools.html
Immediately destroy activities
Tells the system to destroy an activity as soon as it is stopped (as if Android had to reclaim memory). This is very useful for testing the onSaveInstanceState(Bundle) / onCreate(android.os.Bundle) code path, which would otherwise be difficult to force. Choosing this option will probably reveal a number of problems in your application due to not saving state. For more information about saving an activity's state, see the Activities document.
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(and yes, they used to call it "Immediately destroy activities")

Thanks. I turned it off. Did notice some bugs while on. I just wish with 1GB of RAM the launcher wouldnt have to reload. Hopefully things get better. Might just be my apps but it happens quite often when leaving the browser.
Sent from my Galaxy Nexus using xda premium

mobilehavoc said:
Thanks. I turned it off. Did notice some bugs while on. I just wish with 1GB of RAM the launcher wouldnt have to reload. Hopefully things get better. Might just be my apps but it happens quite often when leaving the browser.
Sent from my Galaxy Nexus using xda premium
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weird.. how many widgets do you have on your launcher? the more widgets you have, the slower the launcher is.
Have you tried another launcher? The stock launcher has never been known for being fast and efficient, although I haven't had any issues with it (whereas I'm a LauncherPro fan on my other devices).

kwazi said:
weird.. how many widgets do you have on your launcher? the more widgets you have, the slower the launcher is.
Have you tried another launcher? The stock launcher has never been known for being fast and efficient, although I haven't had any issues with it (whereas I'm a LauncherPro fan on my other devices).
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I have quite a few Widgets but nothing too crazy I don't think. I use LauncherPro on my other devices as well but I love this new launcher so I'm going to stick it out. Like I said the most common task that causes the issue is when I'm using the web browser and then come out of it. Otherwise its been stable. I've noticed the same thing with Honeycomb on my Xoom so it might just be one of those things I have to put up with.
Sent from my Galaxy Nexus using xda premium

i'm also noticing some redraw and occasional lag when hitting the home button.
I'm hoping that CM9's custom launcher will have an option to lock it in memory- that may increase the performance by a lot.
also when replacement launchers like go launcher start optimizing more for ICS those might be good options.

Have you tried converting your launcher into a system app? You'll need to use Titanium Backup Pro or something similar to do it for you, or simple copy the APK into your system/app folder... Really sped up my launcher!

shawnshine said:
Have you tried converting your launcher into a system app? You'll need to use Titanium Backup Pro or something similar to do it for you, or simple copy the APK into your system/app folder... Really sped up my launcher!
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Did you see the date on this thread, almost 8 months old
Sent from my Galaxy Nexus using xda premium

95Z28 said:
Did you see the date on this thread, almost 8 months old
Sent from my Galaxy Nexus using xda premium
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... and yet people still continue to discover the thread and benefit from it.
Thanks for clarifying the meaning of "Don't keep activities"

my razr xt910 cannot be counted upon to run smoothly with all the apps simultaneously running and forcing itself to go into reboot. i then fancied an iPhone single styled system (as compared to Android multi-talks) cuz iPhone looks robust and responsive. all the killer that claimed to do the job looked more of a farce and then when i stumbled upon the destroy activity i was like OMG. srsly b4 using it I've only got just inner 100mb of ram, after using it i have a whooping 400mb ram. UI appears faster and all. regarding the relaunching of apps and battery life being used up. i think I'll start to worry about it on a later date. what say any body. ooh yes to add on, even after i deleted 40 apps on my phone it still hanged like fcuked. i guess i can reinstall them back again and not have to worry about it. btw i can't seem to root my xt910 for nuts so i can't custom ROM it along with all other fanciful mods that i hear about what others did to their phones.

Apps Uninstalling Themselves

I noticed that I've had several apps "uninstall" themselves.. all of them were on the SD card.
Seems to be a common bug among quite a few GB builds when I checked it out on Google.
Is there a way to disable "apps to sd"? I'm on the stock ROM, rooted.
I believe it would take a modified a2sd.sh script but I don't yet have the programming experience to feel comfortable altering it myself (I'm still on stock recovery so a nandroid backup isn't an option)
Should probably be a simple fix, any of you Dev's willing to chime in?
Also, anyone else noticed this happening to them?

i've seen that bug a few times, it's quite annoying, some how the OS just loses the installed info about the apps, and you have to re-install them for it to know it's still there

I am seeing this even on apps saved internally.
Sent from my SGH-T989 using xda premium

Same here
Sent from my SGH-T989 using XDA App

Just thought I should also point out this is not a hardware issue, it has happened to me on all my previous 3 android phones
Sent from my SGH-T989 using xda premium

Everytime I install an app, I simply make sure I "move to phone" if it gets installed on the SD card
No problems since (yet..)

Are you using an aftermarket launcher or stock launcher? In any event not sure if it matters. I'm running CM7 alpha with Launcher Pro. It randomly happens to me, but I hold the back button on CM7 to force close Launcher Pro, and when it relaunches the apps are fully present. Try killing and restarting your launcher.

I've seen this as well - currently running Bombaridier 3.5 w/ Bullet...I've had this happen on different versions of the ROM, and it's kinda like AllGamer points out: app info seems to be lost, somehow - in my observation, after a reboot. However, if you go to manage your Applications, they'll still show as installed (well, mine do anyhow.) And yeah, reinstalling is no issue.
Restart the launcher? I will have to see about that - I'm running Go Launcher Ex on Bombaridier 3.5; if I see this (hopefully not) again, I will try that to see what happens. Thanks for the tip!

[Q] RAM problem....

hello
My note 2's 2GB of RAM is ****ed up, some apps I don't know about them uses up all the RAM and it makes my phone ****ing slow. It's ****ing pissing me off.
It goes to 357MB then to 1.34GB.
Is there any way to fix this issue?
Thank you.

I don't have ****cking idea why that *****cking problem is *****cking happening,but there's lots of ****cking apps that take a lot of *****cking ram

donhashem.dh said:
I don't have ****cking idea why that *****cking problem is *****cking happening,but there's lots of ****cking apps that take a lot of *****cking ram
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Click to collapse
^^^^^^^^_^
HI ***KING LARIOUS
sent from my future SPH-L900

please no trolls.
I asked if there's any ****ing solution for this problem. How can i permanently close those running apps. I ****ing force close them and they ****ing starts again.

Can you post a ****ing screen shot or make a ****ing list of the ****ing apps that are ****ing opening so that we can see what they are?
Maybe other people will have the same apps running and know how to shut them off
Sent from my HTC One X using xda premium

Seeing as you're new here, i though i'd be nice to you this first time.
Please, no swearing.
The people who posted in the thread are making fun of you because of the absolutely unneeded swearing and nonsense.
To fix your problem you're going to have to tell us some more about your phone and what you've done.
Is it rooted? If so, what rom and kernel are you running?
Did you try to simply reboot the phone? (Also a good idea to cold boot it, meaning to shut it off, remove the battery, put it back in and boot up).
It's doesn't help what so ever to force close apps that are not misbehaving. The Android system manages this perfectly fine. Only force close an app if there is something wrong with it.
What apps have you installed? Some of them might be taking up alot of RAM and running in the background.
I was nice to you, now please do the same to us.
You came to us asking a question like that, you should be gracious that we're even replying.

Moonbloom said:
Seeing as you're new here, i though i'd be nice to you this first time.
Please, no swearing.
The people who posted in the thread are making fun of you because of the absolutely unneeded swearing and nonsense.
To fix your problem you're going to have to tell us some more about your phone and what you've done.
Is it rooted? If so, what rom and kernel are you running?
Did you try to simply reboot the phone? (Also a good idea to cold boot it, meaning to shut it off, remove the battery, put it back in and boot up).
It's doesn't help what so ever to force close apps that are not misbehaving. The Android system manages this perfectly fine. Only force close an app if there is something wrong with it.
What apps have you installed? Some of them might be taking up alot of RAM and running in the background.
I was nice to you, now please do the same to us.
You came to us asking a question like that, you should be gracious that we're even replying.
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Click to collapse
Sure.
My Samsung Galaxy note 2 is not rooted.
I restart my phone couple of times if the number exceeded.
I have 39 apps downloaded from Google Play.
I was angry because it annoys crap out of me so pardon me.

Mporp said:
Sure.
My Samsung Galaxy note 2 is not rooted.
I restart my phone couple of times if the number exceeded.
I have 39 apps downloaded from Google Play.
I was angry because it annoys crap out of me so pardon me.
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Click to collapse
Okay.
If your phone is running slowly and you're not rooted, then it is 99% sure an app problem.
It could be a hardware flaw in your phone, but my guess is app related (If your phone was as slow as it is now, when you got it, it is probably hardware related).
Try uninstalling any unneeded apps, like various tools you downloaded once to try it out, games you dont really play, etc etc.
Try to clear your cache. There are several apps out there that can do it (Some require root, and can clear more caches than non-root ones can, just try a non-root cache cleaner).
After doing that, do a cold boot as i refered to in my last post and see if it is better.
If not, try and go into Settings, Applications, Running Applications and see if there are any major apps that you installed yourself (not the ones that came with the phone) running and try to uninstall the ones taking up the most power, then do a cold boot again and see if it improved.
If nothing works, try and post a list of the apps you have installed on your phone that you installed yourself.

Moonbloom said:
Okay.
If your phone is running slowly and you're not rooted, then it is 99% sure an app problem.
It could be a hardware flaw in your phone, but my guess is app related (If your phone was as slow as it is now, when you got it, it is probably hardware related).
Try uninstalling any unneeded apps, like various tools you downloaded once to try it out, games you dont really play, etc etc.
Try to clear your cache. There are several apps out there that can do it (Some require root, and can clear more caches than non-root ones can, just try a non-root cache cleaner).
After doing that, do a cold boot as i refered to in my last post and see if it is better.
If not, try and go into Settings, Applications, Running Applications and see if there are any major apps that you installed yourself (not the ones that came with the phone) running and try to uninstall the ones taking up the most power, then do a cold boot again and see if it improved.
If nothing works, try and post a list of the apps you have installed on your phone that you installed yourself.
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Click to collapse
I don't think its hardware related. When I got first my Note 2 it was suprisingly fast. So it's probably the apps.
I've cleared all my caches, deleted a lot of unneeded apps and also done the cold boot after that I navigated to Settings>Applications manager> running apps.
I noticed samsung's keyboard took 55mb of ram, google service 20mb. maps 32mb. play store 10mb. settings 39mb 0_0. Those apps that came with the phone took a lot of ram. why is that? is there anyway to decrease the number?

You can use Titanium Backup to freeze or unintstall any apps that aren't needed by the OS. This will prevent them from ever starting up again.

Is the used up ram actually causing you problems? As I understand it android will make use of the ram to help switch apps quicker. So if its high its not a problem.
Sent from my GT-N7100 using xda premium

there are apps out there that tells you which apps uses the most cpu cycles. i can't recommend one as i don't use them, but might help you pinpoint your problem-app.
Sent from my Transformer TF101 using Tapatalk 2

So you want more Ram han? Here is a very simple trick
Go to developer option
Select limit background processes and then select 4 processes...
You will see ram will fall below 1 gb
sent from: designed for humans

As far as I know, it makes my phone laggy when the number is high and the animation when you open a folder seems slow and also for notifications

[Q] Should We Clear Memory Every So Often?

I don't know if anyone else has this same experience but when i clear my memory every once in a while my battery seems to last way longer than when i don't.
Should we be doing this or is this not ideal?

You mean clearing recent apps?
Sent from my Galaxy Note 2

revs9k01 said:
I don't know if anyone else has this same experience but when i clear my memory every once in a while my battery seems to last way longer than when i don't.
Should we be doing this or is this not ideal?
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Ram? I close out apps because I open different apps like for instance ill play gta vc then go ahead open a different app and start making around. But I don't close them so after I'm fine doing whatever ill go to the task manager and close all apps but rarely will ill clear the RAM android does a good job at doing that on its own. Typically I'd something freezes or had issues ill clear RAM and eventually it will build up simply because applications are restarting back up.
Sent from my SPH-L900 using xda premium

[Q] Anyone else notice some lag after the first few days? need help if you have!

So i've only had the phone for a few days and started noticing lag mainly in the settings yesterday.
It was buttery smooth the first few days until yesterday. I'll try to create a clear description of what is happening.
Everything in terms of hitting applications, sliding/switching pages, and browsers seems smooth but I'm getting doubts since settings have started lagging. So as of now, the settings menu is where I really notice the problem. What happens is I would press any of the choices such as display, sound, storage, etc and it would light up blue as a sign that I pressed it. Basically, the blue lighting stutters/lags as it turns into a deeper color and fades away proving that there is some lag. That itself is very irritating on such a powerful phone. The page also lags a bit as it's opening so it's obvious that it does lag. I don't understand why something as simple as settings might be causing this?
have any of you guys noticed this? I tried clearing ram, restarting phone, messing with dev options by changing animation and something else to .5x while enabling "force GPU rendering." I'm running stock touchwiz on baseband T889UVALJ1 if that helps. Keep in mind i'm not really tech savvy so try to suggest things in an easy to understand way please.
Any help is greatly appreciated and I hope you guys can help me fix my problem!

Been using it for the past 1 month plus and I do not have any lagging issues. I am on stock rom as well.

No lag either, been using the Note 2 for 2 months now. Check your apps with BetterBatteryStatts (too many backgroundservices runing).

No lag either. Did u install some crappy apps that run backstage
Sent from my GT-N7100 using xda app-developers app

Thanks for the replies so far and before I spend some money on apps or what not, is there any way I can post a 5 second animation of what is happening? Kind of like a 5 second gif of my screen? A mix of a screenshot and video so like a screen vid? Are there are any apps that can do that(preferably free). I'll try to find an app that can do that in the meantime and will edit if I find something useful.
Edit: No idea what this is or how it ended up on my phone but could this be the culprit? https://play.google.com/store/apps/details?id=com.tgrape.android.radar
People say it's bloatware and s-suggest from samsung but i'm not sure why it would be shown as an app on the play store website

I have noticed the phone can lag a bit if you have a heavy live wallpaper running.
Just sharing my thoughts on this

did you modify anything? no lags on my N2.

normally i'd say if you leave your phone on for a few days in a row, clear the memory every once in a while (press and hold home, go task manager, ram tab, clear memory) or reboot it, just so you dont have anything residual in your ram.
when android sees that you have 2gb of ram, it doesnt auto kill as many apps as it would if you were to have only 1gb of ram (my note 1 autokilled sooooooo frequently that it was annoying), so your ram ends up getting filled with some apps that you only used once in a while.

SquirtingCherry said:
I have noticed the phone can lag a bit if you have a heavy live wallpaper running.
Just sharing my thoughts on this
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Click to collapse
I did have a live news wallpaper before but I disabled it and switched to one of the stock wallpapers and the problem persists..
parrotlarch said:
did you modify anything? no lags on my N2.
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Click to collapse
No I didn't modify anything, were you referring to anything specific or some kind of setting?
Souai said:
normally i'd say if you leave your phone on for a few days in a row, clear the memory every once in a while (press and hold home, go task manager, ram tab, clear memory) or reboot it, just so you dont have anything residual in your ram.
when android sees that you have 2gb of ram, it doesnt auto kill as many apps as it would if you were to have only 1gb of ram (my note 1 autokilled sooooooo frequently that it was annoying), so your ram ends up getting filled with some apps that you only used once in a while.
Click to expand...
Click to collapse
I wrote that I tried clearing ram and restarting phone but it didn't help. Thanks for trying though

Yeah, I get a bit of lag here and there, specially if I haven't cleared running/background apps in a while.
I just do it from the task manager, and also check out what apps are using the most battery, and possibly therefore are some of the likely culprits.
I actually use this app called Carat, which is an "Energy bug detector app" (whatever that means), but it helps identify apps that are draining the battery, and incidentally, partially contributing to the lag.
Also obvious thing like live wallpapers or touchwiz in general (including all the 'special' Samsung features like smart rotate, smart stay, smart motion) probably add to it to. Nova launcher and a static wallpaper might help.

I'll try to post a video sometime soon showing the lag. It's not serious lag, but it does stutter and lag a decent amount compared to my first few days which is what sucks.

mitchillen said:
I'll try to post a video sometime soon showing the lag. It's not serious lag, but it does stutter and lag a decent amount compared to my first few days which is what sucks.
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Make sure that power saving is turned totally off in settings to avoid UI lag.

ItzMar said:
Make sure that power saving is turned totally off in settings to avoid UI lag.
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Click to collapse
Yeah that was one of the first things I tried, didn't help.

This happen to me..If surf net lag this could help..check your network setting.
if your SIM card is 3G,set it to "GSM/WCDMA AUTO MODE" instead of LTE..
Hope it help

william1974 said:
This happen to me..If surf net lag this could help..check your network setting.
if your SIM card is 3G,set it to "GSM/WCDMA AUTO MODE" instead of LTE..
Hope it help
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Click to collapse
Well I have a T-mobile Galaxy note II. It should be the 4g LTE variant but lte is not available yet. I think it is the n7105
Under the settings, I only have gsm/wcdma, gsm only, and wcdma only.
I'm not sure what I have to do

Anybody experience lagging on the xda app. Im getting some stuttering when scrolling. Mine's running on full stock rom even when I clear the memory...
Sent from my GT-N7100 using xda app-developers app

DroidPH said:
Anybody experience lagging on the xda app. Im getting some stuttering when scrolling. Mine's running on full stock rom even when I clear the memory...
Sent from my GT-N7100 using xda app-developers app
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You can try enabling Force GPU rendering in developers options. That usually helps with that, or at least it seemed to in my case. Report back if it actually helped

quick update:
I found a vid and my lag basically looks like this http://youtu.be/0qyijcTeHcU?t=2m27s
Look at when he clicks on display, there is clearly some lag even if it is half a second - 1 second. I'm almost certain that my lag is even worse than that, but not by too much. It's just a pain in the ass after the first few days. Would flashing a custom rom like jedi X 7.2 help out with this since it's running a bravia engine?

MohJee said:
You can try enabling Force GPU rendering in developers options. That usually helps with that, or at least it seemed to in my case. Report back if it actually helped
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Actually it did :good: Unfortunately I've lost 10% battery within minutes of using the XDA App. Unticked...I clicked thanks for your help mate.