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?
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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.
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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
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95Z28 said:
Did you see the date on this thread, almost 8 months old
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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.

[Info] For everyone with multitasking complaints...

Go to Settings > Developer Options and scroll to "Don't keep activities" and make sure it isn't checked.
This will prevent most apps from refreshing when you return to them.

Damn mine is already set to normal...

It actually seems to be working really well now. Thanks.

The app does not work on my GSM gnex , its just a black screen
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NIK516 said:
The app does not work on my GSM gnex , its just a black screen
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Working on mine. Do you have force GPU enabled in the developers options?

RogerPodacter said:
Damn mine is already set to normal...
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And everything still refreshes on you after a quick exit?
NIK516 said:
The app does not work on my GSM gnex , its just a black screen
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I enabled GPU mode to see and I couldn't recreate your problem so I'm assuming that isn't it.
There are three different versions, the one I used was made by "Android Apps", I have no clue if this is a clone or not.
If it is someone should let us know and anyone having success should buy the PRO version as it is only $1.74.

Download Spare Parts, not Spare Parts Plus.
Also, uninstalling Spare Parts will reset it back to aggressive. You need to keep the app to have proper multi-tasking for now. It works really well though. (GSM GNex AOKP 28 Franco M2)

I wonder why the memkiller is set at "Aggressive" though?

Hm, I guess I didn't really notice lots of app reloads, but it was most annoying in the browser. When i clicked on it the first time in Spare Parts, neither of them were selected... Changed it to "Normal" and we'll see how it goes.
Not really gonna be happy with this if Spare Parts sits in the background taking up resources.

It was actually the simplest solution that I overlooked.
Go to Settings > Developer Options and scroll to "Don't keep activities" and make sure it isn't checked. That's all the the spare parts Normal/Aggressive toggle does.

What this means?

Somebody knows what this option means?What if i check this "no background process"?
Tnx
Sent from my GT-N7100 using xda app-developers app

Usually the advice is to leave most developer options alone, except usb debugging and show touches, or something like that.

This will cut out any background process like it says... for you it will cut data traffic counters, alarms (maybe), e-mail, any IM clients that you might have and anything that works in the background pretty much.
The positive side is that it will save you LOTS of battery.

BrokenPixel said:
This will cut out any background process like it says... for you it will cut data traffic counters, alarms (maybe), e-mail, any IM clients that you might have and anything that works in the background pretty much.
The positive side is that it will save you LOTS of battery.
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since it's positive what can i do for makin' it ticked permenantly??

This option was great for older phones that had 512MB ram, but with 2GB of ram, probably best if it is left alone.

BrokenPixel said:
This will cut out any background process like it says... for you it will cut data traffic counters, alarms (maybe), e-mail, any IM clients that you might have and anything that works in the background pretty much.
The positive side is that it will save you LOTS of battery.
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R U sure it will save battery? From what i know, when d program get kill, and later need to on back when the user want to use it, it will consume more power compare to program that running at background and once u want to on it, it will simply on n not consume much power to restart etc..
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its up to you which option you want to choose, i have found it very useful. if you run a lot of apps, after quiting the apps it will stay in the memory as a background process. if the 'standard' limit is set your ram can even fall below 200mb. having standard limit will keep the ram and systm busy as well. hence i always go for ' 4 background process', i can easily get up to 1200mb free ram on average and it doesn't affect multitasking..
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sohebq said:
i can easily get up to 1200mb free ram on average and it doesn't affect multitasking.
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I can't see the point of this myself - free memory like that is just wasted memory in my experience.
On my Note 1, I'd often find a process had been killed when I switched away for a while and had to wait for it to be reloaded. No such problem on the Note 2 where the process can stay in memory almost indefinitely. I find the Note 2 far more efficient productivity wise because of this.
Yes, it will use slightly more battery, but given the already epic battery life of the Note 2, it's a no brainer in my opinion.
Regards,
Dave

Tnx guys .
Sent from my GT-N7100 using xda app-developers app

del
sent from: designed for humans

Screen Flicker - No OC or UV

I have not had this problem at all...until maybe a week or go, when it started.
I have screen flicker, sometimes quite bad. I thought I read somewhere that GPU settings may have something do do with it.
Thing is, I haven't changed any settings, or kernels. I'm no what is listed in my sig, and have been for quite a while.
Any thoughts?

You could try disabling HW overlays under developer options in the settings menu.

Disabling hw overlays won't help (much anyways). Turn off auto brightness. Just set your brightness to a usable level. I didn't notice a single flicker the day I turned off auto brightness. The only tradeoff there is you're gonna run through your battery a little more quickly in lower light levels. Wasn't worth it for me, but whatever makes you happy.
Sent from my SAMSUNG-SGH-I747 using xda premium

Neither is a go for me.
I never use auto brightness; I've tried both having Disable Hardware Overlays set and not set.
It's strange...I never had this problem until recently.
But, another thing that seems to be the case: I"m not sure it's happening in any app other than Samsung Email.
...
Just went and tried something: opened an email and scrolled in Samsung eMail, and it flashed. Did same in GMail, and it didn't. Maybe it's just something about a recent upgrade on that app. Maybe I'll post a topic on that app and see if anyone else is seeing it.

What's your ROM?
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diablo009 said:
What's your ROM?
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It's listed in my signature. Stock/Rooted.
I do have an update: I also was having pretty severe flicker/flashing when reading in Aldiko.
Last night I did a TWRP backup; factory reset; restore Data partition. Flashing is improved quite a bit, but still there.
So again, it seems it is happening, for the most part, in just a couple apps: Samsung Email, and Aldiko.

ewingr said:
It's listed in my signature. Stock/Rooted.
I do have an update: I also was having pretty severe flicker/flashing when reading in Aldiko.
Last night I did a TWRP backup; factory reset; restore Data partition. Flashing is improved quite a bit, but still there.
So again, it seems it is happening, for the most part, in just a couple apps: Samsung Email, and Aldiko.
Click to expand...
Click to collapse
For one, I am trying to help you. For two, signatures don't show up when viewing in mobile app. Three... did you try a different kernel?

Same happens wid me.... still am on search for a solution.... at first I thought. May be a ROM has to do wid this... but am not sure...
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diablo009 said:
For one, I am trying to help you. For two, signatures don't show up when viewing in mobile app. Three... did you try a different kernel?
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Sorry. Didn't mean to offend. I didn't know sigs don't show up when viewing in mobile. I put the info in the sig in order to prevent people from having to ask, and to prevent from having to type it with every post. I appreciate your telling me it doesn't show up in mobile apps. I never use mobile for forums...typing is to laborious.
IN answer to three, yes, have tried different kernel, although it's been quite a while.

It's ok.
I've had this issue on AOSP ROMs. Only way out was to change ROM.
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How Long Before You Need A Soft Reset?

How long does your OG Pro go before it starts to feel laggy and unresponsive to make you need to reboot the phone?

With the use of the Task Manager Widget, Which lets you optimize the RAM and then keeping the Recent Apps empty , I'm going to have to say.. Never.
BUT, As a rule of thumb, I will Restart the phone after I have installed an App and have all the start up "work" for that App accomplished.

I don't ever feel the need to reboot..I don't run any task managers or anything.

I restart almost twice a day. It's a bad habit from my iPhone days of 2 years ago. I've done it with every android phone I own and it has become an OCD thing now. Trying to quit but it's hard.
Sent from my LG-E980 using xda app-developers app

Dear lord, That must have been tough times.

Oh it was. Never again. After posting that, j got an email from xsellize(an iPhone site I used to be a part of 2-3 years ago), asking me to come post on the forums so they can have traffic. Lol.
Sent from my LG-E980 using xda app-developers app

Jammol said:
Oh it was. Never again. After posting that, j got an email from xsellize(an iPhone site I used to be a part of 2-3 years ago), asking me to come post on the forums so they can have traffic. Lol.
Sent from my LG-E980 using xda app-developers app
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I disabled all of the bloatware, as well as many of the Google stuff I do not use, and it made a world of difference in the overall performance of my device. Combine this with the task manager set to reclaim memory every 12 hours and I am good to go. My original lag issues are now gone.

I never reboot my device except when applying some sort of mod. It's never ever laggy.
I've also read that the Android development community strongly recommends not using any kind of task managing app. This is not Windows. Android is smart about managing it's memory on it's own.

borgib said:
I never reboot my device except when applying some sort of mod. It's never ever laggy.
I've also read that the Android development community strongly recommends not using any kind of task managing app. This is not Windows. Android is smart about managing it's memory on it's own.
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LG provides a task manager widget that refreshes the memory. I wonder what issues that causes, if any.

I use it and I dig it.
Task Manager Widget, Then click the Circle Arrow and my RAM goes up.
My old HTC Vivid would go an 8 hour shift and need a charge, BAD! This OGP was at 80% battery with the same usage.
:hugsphone:

Fyi- The LG task manager clears memory by default every 12hrs.

MrDSL said:
Fyi- The LG task manager clears memory by default every 12hrs.
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Really? Wheres that stated? how do i check the internal setting for that? I'm stock btw
---------- Post added at 09:41 AM ---------- Previous post was at 09:39 AM ----------
Sharpshooterrr said:
How long does your OG Pro go before it starts to feel laggy and unresponsive to make you need to reboot the phone?
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I have only needed to reboot the phone when my iPad wont recognize the hotspot feature. Other than that i don't get lag or need to reboot. i do however CLEAR RAM if it drops below 800MB free. Just to stop running apps from draining my battery.

erwaso said:
Really? Wheres that stated? how do i check the internal setting for that? I'm stock btw
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Just launch task manager from the app drawer...click on menu then settings..
The default options are to auto clear memory every 12hrs.. All of which can be changed.

MrDSL said:
Just launch task manager from the app drawer...click on menu then settings..
The default options are to auto clear memory every 12hrs.. All of which can be changed.
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THe only options are "sort by" and "help" ...
EDIT: Wait, i forgot i'm in the PRO forum lol. That might be the issue haha

erwaso said:
THe only options are "sort by" and "help" ...
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Sent from my LG-F240K using xda premium

dont think i've ever restarted it for being laggy. only when i try a new mod or occasionally after installing an app

341 hours ago.
I think the wifi was acting up so I rebooted two weeks ago.

I use the built in one. You can set the time frame for it to clear the ram for optimal performance. I have it set for every hour. No lag what so ever since I got this phone.