Database Users

Close program??

How do i close a program in the magic, i dont want it running in the background. Is there a prog like a taskmanager or something..??

Hi ,
Download "advance task manager lite" off the Market. This is a very very helpful app which can close all your programs running and very simple to use. And it is Free.
If you need anymore help feel free to post back
CLLC

There is no such app in my market. Can anyone share a free version? Thanks

parrot5 said:
There is no such app in my market. Can anyone share a free version? Thanks
Click to expand...
Click to collapse
It's a free version. The actual name is "Advanced Task Manager Lite" so do a search on "Advanced".

I did do a search and can't find it. Anyone else managed to find it under Rogers in Canada?

I can easy find it. I use it every day, but i find it a bit strange that you cant close apps in any other way! And alot of programs doesnt have a "Quit/Exit" function.
Does anyone have any explanation to why its not possible to close programs without download extra programs?

you know,
I think i heard Something about when you leave the app , it does actually sort of close.
It saves the state you left it in (freezes) and unfreezes when you enter it again. So really the App is not running or using any comsumption at all until you are in the app.

CLLC said:
you know,
I think i heard Something about when you leave the app , it does actually sort of close.
It saves the state you left it in (freezes) and unfreezes when you enter it again. So really the App is not running or using any comsumption at all until you are in the app.
Click to expand...
Click to collapse
This is true.
It is because android is awesome at app management. There is no real need for closing apps. It leaves apps kinda open (saves their state in ram) but not running. That`s why most apps open so fast. And even though more ram is "in use" it doesn`t cost you battery life.

Thanks for confirming ,
What a fantatic way , The OS is fantastic and I can guarantee that Android has alot of potential and Can only get better and come up with more technological breaking idea's!!
CLLC

CLLC said:
you know,
I think i heard Something about when you leave the app , it does actually sort of close.
It saves the state you left it in (freezes) and unfreezes when you enter it again. So really the App is not running or using any comsumption at all until you are in the app.
Click to expand...
Click to collapse
Oh i didnt know that!! Sounds really fantastic. I have to get used to a whole new way of thinking then, i think im too used to windows
Anyway. I love Android more and more. But i was shocked when i found out that you cant send or receive files via bluetooth. I hope this is their number 1. priority in the next released. I mean, comon .. phones have been able to do this for 10 years now!

parrot5 said:
I did do a search and can't find it. Anyone else managed to find it under Rogers in Canada?
Click to expand...
Click to collapse
i did not find it either. i m using rogers too
but you can download Close Everything at Market for free.
i think those apps are similar. the only difference is you have to close EVERYTHING instead of choosing an app to end it.
anyway, the system is not getting slower even i open lots apps.
maybe, the "freeze" thing is true

yesterday I had my phone fully charged before i got to sleep, in the morning 8 hours later the battery was almost empty. GPS and WIFI was disabeld, so I think all the programs in the "background" ( a lot ) killed the battery.
Or what do you think killed the batt?

nevil said:
i did not find it either. i m using rogers too
but you can download Close Everything at Market for free.
i think those apps are similar. the only difference is you have to close EVERYTHING instead of choosing an app to end it.
anyway, the system is not getting slower even i open lots apps.
maybe, the "freeze" thing is true
Click to expand...
Click to collapse
But I thought if you close EVERYTHING the alarm will not work?

foxman01 said:
yesterday I had my phone fully charged before i got to sleep, in the morning 8 hours later the battery was almost empty. GPS and WIFI was disabeld, so I think all the programs in the "background" ( a lot ) killed the battery.
Or what do you think killed the batt?
Click to expand...
Click to collapse
that did not happen to me yet
if you disable background data usage in data sync that will save batt life and lower data usage too.
do not know if that helps at all

parrot5 said:
But I thought if you close EVERYTHING the alarm will not work?
Click to expand...
Click to collapse
alarms still work (tested just now)
i do not know how that app works ~oops~
maybe it does not work at all hahaha

not all programs stop running. some are designed to run in the background
the only real way to check what is running is to use a task manager
I paid $0.99 for advanced task manager. Its a good, but basic app. And hardly breaks the bank at that price!
The other issue I get is "go slows" sometimes on the phone. It doesn't seem to crash, just response times go into the seconds. I switch off and on to soft reset and its fine.

nevil said:
that did not happen to me yet
if you disable background data usage in data sync that will save batt life and lower data usage too.
do not know if that helps at all
Click to expand...
Click to collapse
Why should I disable data usage? If i have an app that use data, then I only need to close the app. Please correct me if I´m wrong.

System Killing Launcher on every app launch!!

Hi!! I have a problem, I'm currently Running Darky's 10.1 with dark core 2.6... Everything is smooth and snappy, however the system keeps killing my launcher everytime I launch an application whether it be a game, browser, news app... Whenever I exit the app the launcher reloads and it makes the phone really really slow and laggy for 10-15 seconds...
I currently using ZEAM launcher, not sure whats causing this, i've been using this launcher since its launch and only had this problem when i was on stock froyo...
Any ideas what can be done to fix this issue...
Thanks!!

Same problem here.
I am on GigerReal 7.1.3 and the worse thing is when it you try to make a phone call and the bloody thing just restarts the phone every third key pressed.
I can only call using voice calling when this happens...
I am using LauncherPro but it also happens in Ginger Launcher and TW Launcher 4.5

Just out of interest guys, how much free memory is showing for you in Settings > Applications > Running Services ?
I am running stock JVQ and although the phone works fine after initial boot (with around 180mb free) this number seems to drop over time and results in any new application clearing any other app from the memory. This even meant that if I got a text message while using the web browser and replied to it, by the time I went to return to the browser it had to reload where I was from scratch. It was also clear that after playing a game and returning to the home screen, even this was having to reload and "redraw" again.
That in itself is a minor annoyance but eventually it seemed to get so bogged down the whole system froze with the "black screen of death" and I had to do a forced reboot. I'm aware, of course, that JVQ is not an official release so it's not fair to be too harsh on Samsung here...

I seem to have a lot of memory free. It happens after the phone has been up for some time.
I noticed that launcher pro was reloading the widgets every time it starts. Also i seem to notice that it happens when you dial a couple of numbers and it starts giving you suggestions from the contacts. So it could be contact related?

Tepes4 said:
I seem to have a lot of memory free. It happens after the phone has been up for some time.
I noticed that launcher pro was reloading the widgets every time it starts. Also i seem to notice that it happens when you dial a couple of numbers and it starts giving you suggestions from the contacts. So it could be contact related?
Click to expand...
Click to collapse
This is the same that happens on my system... The launcher just reloads all the widgets everytime I close an application... the amount of ram is always close to 243/337.. So its close to 90-100 mb free, which is enough i suppose... Still the launcher just reloads everytime an app is closed... Its really getting annoying...

basicly you must set HOME_APP_ADJ to 0 making home app unkillable =)
am not sure but probably do that
/data/local.prop -> add such line ro.HOME_APP_ADJ=0
and restart - have not tested just pure theory (the .prop location)

$omator said:
basicly you must set HOME_APP_ADJ to 0 making home app unkillable =)
am not sure but probably do that
/data/local.prop -> add such line ro.HOME_APP_ADJ=0
and restart - have not tested just pure theory (the .prop location)
Click to expand...
Click to collapse
Actually, putting the value as 1 worked better for me. My launcher so far has not been killed even once.

ya 1 should work flawlesly
0 is making it bulletproof/unkillable at any state
but 1 should be safest value

I think Spare Parts allows you to adjust the task killer's sensitivity. Maybe have a play with that and relax the settings.

$omator said:
ya 1 should work flawlesly
0 is making it bulletproof/unkillable at any state
but 1 should be safest value
Click to expand...
Click to collapse
Hi Thanks for the advice, however i'm not sure how to set these values, Is there any tool that I can use to do that??

psyren said:
I think Spare Parts allows you to adjust the task killer's sensitivity. Maybe have a play with that and relax the settings.
Click to expand...
Click to collapse
spare parts at least free one does not have such option
also this is not about adjusting memory taskkiller options
not the one that you can setup with this useless juwe script for example
different thing
exjc1986 said:
Hi Thanks for the advice, however i'm not sure how to set these values, Is there any tool that I can use to do that??
Click to expand...
Click to collapse
never came across one

exjc1986 said:
Hi Thanks for the advice, however i'm not sure how to set these values, Is there any tool that I can use to do that??
Click to expand...
Click to collapse
Attached is an APK which adds that line. Make sure you're rooted first. I wrote it in the past 10 minutes, so it's very simple and might crash, but it did work for me.
Just install it, launch it, confirm root and then watch out for a small message. If successful it will directly ask you to uninstall it. Reboot, and done.

there is also ro.HOME_APP_MEM that can be changed to 4096
to follow other oom_adj=1 settings =)

@martino2k6
Thanks a lot dude... The apk installed perfectly... I'm already seeing improved performance from my device... The launcher hasn't been killed once since the install...
Thanks again for all your help... appreciate it...
Sent from my GT-I9000 using XDA App

http://androidnexus.com/guides/fix-home-screen-redraw-lag-in-launcherpro-and-adw-launcher

Try changing the lowmemoty killer setting to something less aggressive. Your phone is trying to keep too much free memory so has to kill off apps.
Download Galaxy Tuner (using memory manaber option)and set the application cache values to the new samsung default as follows:-
fa=10 MB
va=16 MB
ss=20 MB
ha=24 MB
cp=28 MB
ea=32 MB
Make a note of your current settings in case it doesnt help.
You can also use Galaxy Tuner to set JEWE's file system cache
, settings are:-
SWP: 50
VCP: 10
DEC: 5
DWC: 10
DRA: 90
DBR: 5
These work well for me so give them a whirl, you can always put the values back to where they are now.

mate the problem is solved already - please read dont spam those juwe crappy values ok ?

Ok, cool
Sent using geek power

I cannot thank you enough mate!
There were times i could make a phonecall cause it kept bringing me back to the home screen!
You sir, are a gentleman and a scholar!
martino2k6 said:
Attached is an APK which adds that line. Make sure you're rooted first. I wrote it in the past 10 minutes, so it's very simple and might crash, but it did work for me.
Just install it, launch it, confirm root and then watch out for a small message. If successful it will directly ask you to uninstall it. Reboot, and done.
Click to expand...
Click to collapse

exjc1986 said:
@martino2k6
Thanks a lot dude... The apk installed perfectly... I'm already seeing improved performance from my device... The launcher hasn't been killed once since the install...
Thanks again for all your help... appreciate it...
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
Tepes4 said:
I cannot thank you enough mate!
There were times i could make a phonecall cause it kept bringing me back to the home screen!
You sir, are a gentleman and a scholar!
Click to expand...
Click to collapse
You're both welcome. That's what [helping out] XDA is for after all

How to make the LG G3 smooth as butter

I don't know if there is already a thread going on about this but i jus wanted to share it with a little introduction
2 days ago i was getting a secondhanded LG G3 (16GB, 2GB ram) as replacement for my Oneplus One.
Screen is just gorgeous and so is the build quality (hmm the feeling of this phone)
HOWEVER.... There was a downside... The LG G3 was nowhere as smooth as a regular S5, HTC One, G2 etc.. Pressing the home button from an app takes like half a second, there was some lag when switching apps, keyboard was laggy as i am a fast typer...
So i searched a solution on the internet and it actually worked!
My LG is smooth like butter... Battery was also a tad better!
NOTICE: this is just a summary from all the things i did to my mobile to become lag free! My thanks goes to the people who found this solution so the credits goes to them and not me!
1: Enter the following based on your device model:
3845#*855# (for International model)
3845#*851# (for T-Mobile)
3845#*850# (for AT&T)
5689#*990# - (for Sprint)
2. Scroll down to High Temperature Property OFF,and select
3. Turn it ON... (Don't press back or home, just switch the phone off)
4. Turn G3 fully off...
5. Wait at least 10sec...
6. Turn it back on and wait about 30sec. when Screen Lock shows...
1. Again enter hidden menu according to your device model number
2. Select Thermal Daemon Mitigation OFF (again don't go back, just turn the phone off)
3. Turn it ON
4. Turn OFF your G3.
5. Wait for around 30sec
6. Turn it on and after lock screen appears unlock it
7. Wait for at least 60sec more for G3 to finish sync and stuff
8. BOOM much more fluid and much faster G3
(thanks to: stefan063)
Want more speed?
1. Go to settings > About the phone > Software information > Tap a few times on Build-number untill it shows "you are a developer!"
2. go back and go in to developer options
3. Tap on Select Runtime
4. Default is Dalvik but choose ART instead
5. Phone auto reboots (takes a long time so don't worry)
6. Wait till finished and BAM, speedy LG
Want lightning speed by sound speedyness?
1. Just install a different launcher (I use Nova)
greets!

so how do you do this on verizon

harveydwijs2 said:
greets!
Click to expand...
Click to collapse
nice idea, but this is already published.
see this LINK

I don't know unfortunatly because no codes are working that i have mentioned

Thats why i said "thanks to: stefan063"

harveydwijs2 said:
Thats why i said "thanks to: stefan063"
Click to expand...
Click to collapse
So, why this thread?

ART causes wakelocks and Bluetooth audio stuttering. Thermal mitigation keeps clocks high and hurts battery life. Launcher replacement if it is stable makes sense, LG 's skin hurts more than anything.

How about you add the downside to these options to the OP
Sent from my VS985 4G using XDA Premium 4 mobile app

manaox2 said:
ART causes wakelocks and Bluetooth audio stuttering.
Click to expand...
Click to collapse
I tried ART on my D855, it introduced massive amounts of lag. Back to Dalvik and it's fine

skally said:
I tried ART on my D855, it introduced massive amounts of lag. Back to Dalvik and it's fine
Click to expand...
Click to collapse
Dalvik lags alot. For alot of ppl. And not ART. Think youre the first one who says the opposit.

Lets see if it works
I ma going to give this a try and see if it works ...however i know for a fact that ART dose make your phone less laggy :laugh:

I recently just switched to art. I'm using nova launcher so no lag there. One app I've noticed is slower to launch though is clash of clans. It takes longer for the logo to appear at the star. But seemingly gets better battery life..

koppee1 said:
I recently just switched to art. I'm using nova launcher so no lag there. One app I've noticed is slower to launch though is clash of clans. It takes longer for the logo to appear at the star. But seemingly gets better battery life..
Click to expand...
Click to collapse
may i know what this nova launcher is? sorry im really a newbie.. is it like rooting the phone? i want also to speed my phone although it's fast already. I just want to try things but im afraid if it will affect some warranty issues? or no?

Nova Launcher is a home launcher app

daryll54321 said:
may i know what this nova launcher is? sorry im really a newbie.. is it like rooting the phone? i want also to speed my phone although it's fast already. I just want to try things but im afraid if it will affect some warranty issues? or no?
Click to expand...
Click to collapse
You can download in the playstore. You can think of it as the icing, and the cake would be the ROM. Replacing the launcher only replaces the top layer, what you see and how the interface looks while you are on the home screen. It does not void your warranty.

daryll54321 said:
may i know what this nova launcher is? sorry im really a newbie.. is it like rooting the phone? i want also to speed my phone although it's fast already. I just want to try things but im afraid if it will affect some warranty issues? or no?
Click to expand...
Click to collapse
Just download it from the playstore, it will change your life...
It has a lot of options, you can also download themes for nova on the playstore.

any news on this working on verizon

koppee1 said:
I recently just switched to art. I'm using nova launcher so no lag there. One app I've noticed is slower to launch though is clash of clans. It takes longer for the logo to appear at the star. But seemingly gets better battery life..
Click to expand...
Click to collapse
Small word of warning: I switched to ART as soon as I setup my G3. Clash of Clans worked great for a few days, but then wouldn't start at all. I tried everything I could think of, from reboots, to wiping data, to uninstalling and reinstalling. No dice. It only started working again when I switched back to Dalvik.
Hopefully you won't see that issue, but it certainly made me realize that ART as it is in the wild, isn't quite ready for prime time.

jellmoo said:
Small word of warning: I switched to ART as soon as I setup my G3. Clash of Clans worked great for a few days, but then wouldn't start at all. I tried everything I could think of, from reboots, to wiping data, to uninstalling and reinstalling. No dice. It only started working again when I switched back to Dalvik.
Hopefully you won't see that issue, but it certainly made me realize that ART as it is in the wild, isn't quite ready for prime time.
Click to expand...
Click to collapse
I actually didn't see any problems with ART..but i eventually went back to dalvik for xposed. I wasn't too sure if battery really was improved or not...so i figure..what the heck...i'll just go back to dalvik haha

koppee1 said:
I actually didn't see any problems with ART..but i eventually went back to dalvik for xposed. I wasn't too sure if battery really was improved or not...so i figure..what the heck...i'll just go back to dalvik haha
Click to expand...
Click to collapse
ART shouldn't really affect battery life that much,only around an extra 5% in its current beta form. The theory is that with dalvik, everytime you start an app it has to convert that app into bytecode to launch it. With ART it pre compiles the bytecode on first run. The converting into bytecode uses extra CPU cycles thus extra battery so changing from dalvik to ART should make a difference. As it is only in beta form on 4.4.2 there's really not much difference.

How to stop ActivityManager killing apps due to "high power cost"???

By now you may have heard about Axon 7 killing music playing app issue, if you haven't experienced it yourself already. For me I'm having a similar or at least related issue. The phone would kill my game when I turn off and on screen. After some investigation, below is my observation
1. Doesn't happen all the time. After a fresh reboot, no killing for a while... but after some time using the phone, it starts to happen
2. Not app-specific: After playing a game heavily for a while, the killing starts... only for that specific game. If I play a different game, then only that new game gets killed.
This have driven me kinda crazy. A look at adb logs reveals this:
12-22 12:45:34.229 I/ActivityManager( 1752): Killing 23881:jp.co.happyelements.toto/u0a122 (adj 0): excessive high power cost :jp.co.happyelements.toto
What the actual f***??? Why would ZTE kill my "excessive high power cost" process *after* I turn on the screen (and not when I turn off screen, which was 5 seconds earlier)??? Has nobody in ZTE thought about that apps that has "high power cost" may not be actually "excessive" but totally within reasons and fall into the category of normal every day use?
And no amount of changing the native "power saving" options stopped this behavior. Back in the days I remember there was some root/xposed module that would whitelist apps from being killed by the OS but I couldn't remember the name. So now I have to ask help on how to deal with this idiocy.
Edit: My apologies... I just noticed I posted in the wrong section... mods please move the thread to Q&A section if possible. Thanks a lot.

is there seriously no solution?
This is intolerable

Turn off smart power lol. Not rocket science my friends

icenight89 said:
Turn off smart power lol. Not rocket science my friends
Click to expand...
Click to collapse
I did. Didn't help.
If it was that easy, then I wouldne be here asking about it would I?

Yep, have the same problem after trying the same things. Several apps (2 of which I use for monitoring blood sugar levels) will randomly stop updating until either re-launched or the phone is rebooted. I have disabled all power manager options to no avail. Whatever power management system ZTE has implemented, it's FAR too aggressive.
Disclaimer - I haven't pulled logcats, but your description of the problem matches mine exactly. Here's hoping for a fix in Nougat and/or a custom ROM, otherwise I'm moving to a different phone. The A7 has great hardware but the stock software is a bloated mess.

B27 does not have this issue (which is why I downgraded to it). Might be a solution for you until the next upgrade releases.

whoiswes said:
Yep, have the same problem after trying the same things. Several apps (2 of which I use for monitoring blood sugar levels) will randomly stop updating until either re-launched or the phone is rebooted. I have disabled all power manager options to no avail. Whatever power management system ZTE has implemented, it's FAR too aggressive.
Disclaimer - I haven't pulled logcats, but your description of the problem matches mine exactly. Here's hoping for a fix in Nougat and/or a custom ROM, otherwise I'm moving to a different phone. The A7 has great hardware but the stock software is a bloated mess.
Click to expand...
Click to collapse
@whoiswes If you are talking about the xdrip app. I too want this app to work with this phone. I tried CM13 and had the app work for hours then at night it stopped working. I only tried it for one night so didn't try different settings. At least this is a positive sign once CM13 becomes more stable or CM14 is released. I heard the app won't work with B27 either.

Found a solution, though it needs root
Code:
pm disable com.zte.powersavemode
then reboot
This totally disables the power saving menu though

phailyoor said:
Found a solution, though it needs root
then reboot
This totally disables the power saving menu though
Click to expand...
Click to collapse
Can you freeze it with TB?

Actually no that didnt help just made it take longer

I have the same issue, ram management is too aggressive.

phailyoor said:
Found a solution, though it needs root
then reboot
This totally disables the power saving menu though
Click to expand...
Click to collapse
Didn't work

:crying::crying::crying:https://forum.xda-developers.com/axon-7/development/xposed-kill-zte-killer-t3532298

phailyoor said:
:crying::crying::crying:https://forum.xda-developers.com/axon-7/development/xposed-kill-zte-killer-t3532298
Click to expand...
Click to collapse
Did this work?

borijess said:
Did this work?
Click to expand...
Click to collapse
No because it has nothing to do with powermanager.

doyou37 said:
No because it has nothing to do with powermanager.
Click to expand...
Click to collapse
Then why was it posts here?

borijess said:
Then why was it posts here?
Click to expand...
Click to collapse
People are desperate

borijess said:
Did this work?
Click to expand...
Click to collapse
Yes
doyou37 said:
No because it has nothing to do with powermanager.
Click to expand...
Click to collapse
Lol did you even look at it?
doyou37 said:
People are desperate
Click to expand...
Click to collapse
I made this xposed module specifically to fix the problem described in OP. If you have the exact problem, including the logcat message, then the module should fix it.
If you dont have the exact problem, including the logcat mesage, then go ****post in another thread.

My solution is to whitelist all apps in:
settings -> energy management -> app energy management -> option button (upper right) -> app protection list -> option button -> set all to off
But the problem is that this setting resets everytime you install/delete an app
Edit: Ok i just tried out manually setting all apps to "off", now it doesn't reset the apps when installing an app but the new app ist automatically allowed to be cleaned. So you still have to disallow cleaning for each installed app manually.

Just an FYI, I updated to the Cyanogenmod/Lineage 13 Beta by UDev and one of my problem apps has been running for 18 hours without a single hiccup. Trying the second problem app later today. Not a solution for this problem but from my perspective it definitely pinpoints Power Manager as the culprit.
@borijess - yeah, Nightwatch and xDrip are the 2 apps that I've had trouble with, and so far Nightwatch is working great on CM13 (1228 build).

Moto G5 plus app hibernation

Hey guys.
I just started using the Moto G5 Plus and have a hard time understanding one of its features. It seems when I switch to another app and wait a minute or two before switching back to the original app, the app is "reloaded", as if it's state was stored in hibernation to save memory?
The problem is that some apps don't do so well with this, and I might lose what I was doing. One example is taking a picture with snap, switching to Messenger to text someone, and back in Snapchat the app reloads and I lose the picture I was about to send. Another example is Chrome incognito tabs, they seem to lose their session after the app "reloads". There are other situations where it have been a problem, but generally the wait time is annoying as well.
I have searched everywhere in settings and the web trying to identify this functionality and possibly tweak it or turn it off. Can any of you enlighten me, or could this be bug? Do I need root to change it? The device should have enough memory to keep a few apps open, no?
I have the American model and have made sure to update it fully.
Thanks and good day to you all.

ZoonAndroid said:
Hey guys.
I just started using the Moto G5 Plus and have a hard time understanding one of its features. It seems when I switch to another app and wait a minute or two before switching back to the original app, the app is "reloaded", as if it's state was stored in hibernation to save memory?
The problem is that some apps don't do so well with this, and I might lose what I was doing. One example is taking a picture with snap, switching to Messenger to text someone, and back in Snapchat the app reloads and I lose the picture I was about to send. Another example is Chrome incognito tabs, they seem to lose their session after the app "reloads". There are other situations where it have been a problem, but generally the wait time is annoying as well.
I have searched everywhere in settings and the web trying to identify this functionality and possibly tweak it or turn it off. Can any of you enlighten me, or could this be bug? Do I need root to change it? The device should have enough memory to keep a few apps open, no?
I have the American model and have made sure to update it fully.
Thanks and good day to you all.
Click to expand...
Click to collapse
I guess most of the apps are made background-free now to optimize. I think this is the mistake of app itself, I observed this when i was using Greenify app as it marked few apps are Background-free in the list. I am waiting also for others inputs

ZoonAndroid said:
.
Thanks and good day to you all.
Click to expand...
Click to collapse
Try the optimize apps option in battery options
I do not optimize youtubeOG and Showbox.
You could freeze other apps to see if it helps.

How much ram do you have?

PiKa01 said:
How much ram do you have?
Click to expand...
Click to collapse
2gb version

jasons1004 said:
2gb version
Click to expand...
Click to collapse
In that case, I think you know the real answer. You can try messing with minfree values, but be careful because that could cause lags and force closes.