[Q] Android Kill Process Question - Xperia Z2 Q&A, Help & Troubleshooting

Hello,
So, my question is, when I try to kill a process with 3rd party task managers, such as ES Task Manager and Android Tuner, the process gets killed for a moment, and the re-starts again. For example Google+ process. When I kill Google+ on Android Tuner, it starts again after a while.
But when I kill a process with android's default task manager (which is located in Settings --> Apps) it gets killed permanently, till I reboot my phone.
How can I do that same thing with 3rd party Task Managers?
I HAVE a working root and root permissions via SuperSU.

Check out greenify from the play store. It essentially hibernates any apps you choose until you start them. Works best with root.
Sent from my D6503 using XDA Free mobile app

install titanium backup. You can disable almost all of the processes and even system apps, but make sure to choose which apps to disable or uninstall.

bdithug said:
Check out greenify from the play store. It essentially hibernates any apps you choose until you start them. Works best with root.
Sent from my D6503 using XDA Free mobile app
Click to expand...
Click to collapse
I know Greenify, I use it but it doesn't show many apps... Just primary apps installed on the phone. I need something much more detailed.
DrearierJester1 said:
install titanium backup. You can disable almost all of the processes and even system apps, but make sure to choose which apps to disable or uninstall.
Click to expand...
Click to collapse
I know Titanium Backup aswell, I use it but I'm asking about killing a process, not disabling it.
I wonder what's the difference between Android system task manager and a 3rd party task manager with root permissions. Aren't they both supposed to do the same thing?

V4LKyR said:
I know Greenify, I use it but it doesn't show many apps... Just primary apps installed on the phone. I need something much more detailed.
Click to expand...
Click to collapse
Have you clicked "show more apps" at the bottom?
(translation may differ since i'm not using english)

Related

[Q] Mutiple Apps Opening On Their Own

When I open some Apps, 10 other Apps open along with it. Is rooting the phone the only way to have access to the means to stop this?
Thanks,
-Adam
Don't pay so much attention. In general, those applications don't use your cpu and battery. Android has its own task manager system.
Yeah dis is even happening to me,the reason is so simple like one app needs the other apps so they are even opening up.
Devil_Dude said:
Yeah dis is even happening to me,the reason is so simple like one app needs the other apps so they are even opening up.
Click to expand...
Click to collapse
what the appl you using which is opening others appl can u name the apps
if you kill apps, they will probably get restarted automatically and left in the background. If the apps are working correctly, this is not a problem, as a well coded app does not use CPU/battery when in the background.
Actually, I just quit using a task manager to kill tasks (I just let Android kill them as necessary) and I have no problems (phone is not slower, power drain is not higher).
Maybe the thing is that after you stop a task in a task manager it does not update immediately and you don't see the task being restarted, and when you go into the task manager after running some app just then you see the apps restarted.
Also, some apps are very generic (maps) and used by other apps, and some apps need to be running all the time (latitude, mail client, widgets, etc.) and killing them would make them not work properly (widgets no longer updating, not getting new emails, etc.).
My advice is to leave the apps running if you are not very sure of what you are doing, because the OS will eventually kill unnecessary apps, and until then they should not use any CPU or battery.
Only thing is to stay away from badly written apps, the ones that use too much CPU even when in the background or when phone is sleeping. You should probably wait for a night after installing a new app to see if you have higher drain. If so, just uninstall and search for an alternative.
shhbz said:
what the appl you using which is opening others appl can u name the apps
Click to expand...
Click to collapse
Like any Google app by searching is opening. Google search and by using voice search its opening voice search app and so on.
Sent from my LG-P500 using XDA App

[Q] What does 'freezing' an app exactly mean?

Hi,
what does it mean technically if an app is "freezed"? Is the APK moved to another location, or are the unix access rights altered, or is a reference to the app deleted from some kind of "registry" of the Android system, or what else? Can it be done manually by a file manager?
Thanks,
Stefan
It can be done using the purchased version of Titanium Backup and probably a few other apps. It basically renders the app inactive without uninstalling it. Helpful for bloatware that runs in the background but you can't decide if you want to delete it or not.
Thanks, but this was not my question...
lowandbehold said:
It can be done using the purchased version of Titanium Backup and probably a few other apps. It basically renders the app inactive without uninstalling it. Helpful for bloatware that runs in the background but you can't decide if you want to delete it or not.
Click to expand...
Click to collapse
Yes, I know, but what does it do exactly on file system level? Doesn't anybody know?
stbi said:
Yes, I know, but what does it do exactly on file system level? Doesn't anybody know?
Click to expand...
Click to collapse
Most freezing apps simply rename the app to be frozen with an extension, like in the case of Bloat Freezer (IMHO the best one) the frozen app gets a .bzw extension. It remains in place but of course cannot be executed. The nice part is that if you run into an issue you can just rename the app back to what it was (assuming that you have root).
It works!
docfreed said:
Most freezing apps simply rename the app to be frozen with an extension, like in the case of Bloat Freezer (IMHO the best one) the frozen app gets a .bzw extension. It remains in place but of course cannot be executed. The nice part is that if you run into an issue you can just rename the app back to what it was (assuming that you have root).
Click to expand...
Click to collapse
Cool, so simple - thanks! So it can be done with any file manager.
I've just successfully frozen the preinstalled "LGWorld.apk" by renaming it to "LGWorld.apk.bak". As soon as I had done this, a message popped up, saying "Deinstalled", and the icon disappeared from the app drawer, and also the update for "LG World" vanished from the Market app.
Hmm.. freezing doesn't mean rename. It is being remove from system. If.you rename yourself, the apps may failed to work.
Accidentally sent from my Google Nexus S using XDA Premium
Freezing the app works via decreasing the temperature of the app to roughly 50 Kelvin. At this point the the app's molecular structure becomes a super condensed crystal lattice. Due to the nature of the crystal lattice, android treats the super dense app as non existent. Essentially the app is deleted from your system completely. However, think of it not as a permanent deletion but rather a reversible one. Should you chose to 'restore' the app, you can defrost the app. You could defrost the app using a microwave but I for one use TB Pro as it does a far better job.
lambstone said:
Freezing the app works via decreasing the temperature of the app to roughly 50 Kelvin. At this point the the app's molecular structure becomes a super condensed crystal lattice. Due to the nature of the crystal lattice, android treats the super dense app as non existent.
Click to expand...
Click to collapse
Haha smart ass.
lambstone said:
Freezing the app works via decreasing the temperature of the app to roughly 50 Kelvin. At this point the the app's molecular structure becomes a super condensed crystal lattice. Due to the nature of the crystal lattice, android treats the super dense app as non existent. Essentially the app is deleted from your system completely. However, think of it not as a permanent deletion but rather a reversible one. Should you chose to 'restore' the app, you can defrost the app. You could defrost the app using a microwave but I for one use TB Pro as it does a far better job.
Click to expand...
Click to collapse
ha ha ha! that was hilarious man
Press THANKS
stbi said:
Hi,
what does it mean technically if an app is "freezed"? Is the APK moved to another location, or are the unix access rights altered, or is a reference to the app deleted from some kind of "registry" of the Android system, or what else? Can it be done manually by a file manager?
Thanks,
Stefan
Click to expand...
Click to collapse
Press thanks if I helped
Source - How TO Geek
Manufacturers and carriers often load Android phones with their own apps. If you don’t use them, they just clutter your system and sometimes in the background, draining resources. Take control of your device and stop the bloatware.
We’ll be focusing on disabling – also known as “freezing” bloatware here. It’s a safer process than uninstalling the bloatware completely, and is also easier to accomplish with free apps.
Uninstalling vs. Freezing
Uninstalling an app is exactly what it sounds like – the app is entirely removed from your device. Unfortunately, it’s not possible to get many of these preinstalled apps from the Play Store if you ever need them again. Uninstalling some preinstalled apps may result in problems or instability, so you could run into problems.
It’s safer to “freeze” apps instead of uninstalling them. A frozen app is disabled completely – it won’t appear in your app drawer and it won’t automatically start in the background. A frozen app cannot run in any way until you “unfreeze” it. Freezing and unfreezing are instant processes, so it’s easy to undo your changes if you end up freezing a necessary app.
If you really must uninstall apps, you should freeze them first and wait a few days to ensure that your phone or tablet works properly without them.
You can’t uninstall or freeze preinstalled bloatware apps without root access and third-party app managers. Try and you’ll find the options grayed out in the standard Android interface.
klacenas said:
ha ha ha! that was hilarious man
Click to expand...
Click to collapse
I understand and have frozen quite a few apps with TB Pro. My issue is there are shine pre-installed apps that I like to use, but when I run the task killer, they're always running. Is there a way I can fix them where they don't keep starting immediately after killing them, but still having them available when I want to use them?
donnebonn said:
I understand and have frozen quite a few apps with TB Pro. My issue is there are shine pre-installed apps that I like to use, but when I run the task killer, they're always running. Is there a way I can fix them where they don't keep starting immediately after killing them, but still having them available when I want to use them?
Click to expand...
Click to collapse
you can try greenify it will hibernate the apps and hence the app will be available for you any time
donnebonn said:
I understand and have frozen quite a few apps with TB Pro. My issue is there are shine pre-installed apps that I like to use, but when I run the task killer, they're always running. Is there a way I can fix them where they don't keep starting immediately after killing them, but still having them available when I want to use them?
Click to expand...
Click to collapse
Another app called greenify. Or using an autostart manager to prevent them from running without ykur intervention.
sangalaxy said:
you can try greenify it will hibernate the apps and hence the app will be available for you any time
Click to expand...
Click to collapse
Thx a bunch. I dwld and installed the grenify app and disabled them, however, when I run my task killer the gallery app is always running. I wanted to greenify it, but it's not showing up in the greenify app, even when I did a search for it, it just took me to my home screen. I clicked on the app and it just opened but I didn't see any options to greenify it. Any suggestions? Thx for ur help.
so at the end is freezing and renaming the same thing? no one cleared that up, i usually just rename to BAK and thats it, what does TItanium apart from renaming?
ok i answer myself, freezing is the same as going to app manager, and selecting DISABLE
or from a root terminal using:
pm disable {package_name} (e.g. # pm disable com.android.browser)
wich calls:
/system/bin/pm
wich in turn contains:
# Script to start "pm" on the device, which has a very rudimentary
# shell.
#
base=/system
export CLASSPATH=$base/framework/pm.jar
exec app_process $base/bin com.android.commands.pm.Pm "[email protected]"
what it does is set a flag for a component to some of different values:
COMPONENT_ENABLED_STATE_DEFAULT
COMPONENT_ENABLED_STATE_DISABLED
among others. (http://developer.android.com/reference/android/content/pm/PackageManager.html)
where does it store this flag: I DONT KNOW
is this flag a value inside some manifest/ini file? : IDK
is this flag st in the file system? IDK
can someone show me the light?
edit: I DONT KNOW for sure but i think it stores it in : /data/system/packages.xml
that is generated by package manager taking info fro each app manifest. i hope i am right, but dont take my word as absolute truth since it was a quick google research lol
Renaming the apk file can result in unwanted behaviour... I learned by trial&error! I'm running MIUI 6 and wanted Google Play as default app store and not the MI Market. Renaming the apk file for the Mi Market gave me the result I wanted: launching Google Play whenever I clicked a link to a certain app. But that was until I rebooted the phone... it got stuck on the MI startup logo. After renaming the Mi Market apk file in twrp recovery, my phone booted again.
So might try freezing it to see if it will do the job properly.
Freezing Mi Market with AppFreezer worked like a charm!
el_jefe said:
Renaming the apk file can result in unwanted behaviour... I learned by trial&error! I'm running MIUI 6 and wanted Google Play as default app store and not the MI Market. Renaming the apk file for the Mi Market gave me the result I wanted: launching Google Play whenever I clicked a link to a certain app. But that was until I rebooted the phone... it got stuck on the MI startup logo. After renaming the Mi Market apk file in twrp recovery, my phone booted again.
So might try freezing it to see if it will do the job properly.
Click to expand...
Click to collapse
Depends what you mean by "renaming." Changing the extension from .apk to .apkold or .bak or something like that will harmlessly freeze the app since it's no longer seen as an apk by the system. Renaming the app itself is another thing entirely.
I renamed the extension to .noapk and Miui wouldn't boot anymore.
Good stuff

[Q] How to close an app and make it stay closed

I've tried doing a lot of personal research before asking. I have watchdog and betterbatterystats. I found 2 apps chewing away at my battery. After using the app I always press back and then it pops up do you really want to exit and I select yes. However, I look at the processes and I will see it running in the background. Using stuff like advanced task killer (and a bunch of other killer apps) doesn't help, as soon as it kills it, the thing just spawns again. I had to force close it or sometimes reboot the phone. Is there any app that locks down these apps so it only allows process to run when the app is in the foreground and as soon as we leave it closes all aspect of that app? (I can't uninstall those 2 apps cause they are kinda essential; but by no means does it require any background process or need to be constantly running). So far it only runs in the background if I opened the app once, but if it starts to auto run I'm screwed.
Is there any app like the cydia backgrounder where I can set a whitelist or a blacklist that only lets the app run in the foreground and as soon as I press home it will stop all its process.
Autostarts in the market. It let's you see what apps start up under what conditions. I would assume you can just doable all conditions the apps can start up from and it would do as you describe.
Sent from my GT-I9300 using Tapatalk 2
joshnichols189 said:
Autostarts in the market. It let's you see what apps start up under what conditions. I would assume you can just doable all conditions the apps can start up from and it would do as you describe.
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse
I have autostart doesn't work, ok I give you an example:
Groupon app. If you don't load it after a reboot it doesn't run, however as soon as you opened the app once. Theres like no way to close it.
Come-on... one of you guys must know how to close an app and prevent it from loading up after I leave the app. Isn't there anything like cydia backgrounder that I can set so apps are only allowed to load in the foreground and closes as soon as go back to the launcher???
Solution
The best solution to this is to install titanium backup. After that, create a widget in ur homescreen and select titanium backup widget (action). Then, select the action freeze/defrost/launch and after select the app ex. Facebook and create the widget. After, you will notice that the widget for the Facebook app has created to ur homescreen with a green locker. If u press on it, it will lock the app (freezed it actually) so it doesnt run. if you want to run the app, tap again on it and automatically will defrost it and launch it.
Hit thanks if i helped you
jcheong said:
I've tried doing a lot of personal research before asking. I have watchdog and betterbatterystats. I found 2 apps chewing away at my battery. After using the app I always press back and then it pops up do you really want to exit and I select yes. However, I look at the processes and I will see it running in the background. Using stuff like advanced task killer (and a bunch of other killer apps) doesn't help, as soon as it kills it, the thing just spawns again. I had to force close it or sometimes reboot the phone. Is there any app that locks down these apps so it only allows process to run when the app is in the foreground and as soon as we leave it closes all aspect of that app? (I can't uninstall those 2 apps cause they are kinda essential; but by no means does it require any background process or need to be constantly running). So far it only runs in the background if I opened the app once, but if it starts to auto run I'm screwed.
Is there any app like the cydia backgrounder where I can set a whitelist or a blacklist that only lets the app run in the foreground and as soon as I press home it will stop all its process.
Click to expand...
Click to collapse
I just want to add some info for a better understanding even if I understand what you meant.
1. A package showing in the process list after you chose "exit" is a sign for a service running. This is not necessary bad as there are many services doing nothing but waiting for events to process (of course some service do stuff in the background and it is good to look after those).
2. In Android there is no such concept as an app, there are activities (dialogs), and services and both have pretty complex life cycles (not just opened or closed) as you can see here
But back to your question: the right way to get rid of apps you don't want/need (also called bloatware in some cases) is to freeze them. One good tool for doing that is titanium backup.
chamonix said:
I just want to add some info for a better understanding even if I understand what you meant.
1. A package showing in the process list after you chose "exit" is a sign for a service running. This is not necessary bad as there are many services doing nothing but waiting for events to process (of course some service do stuff in the background and it is good to look after those).
2. In Android there is no such concept as an app, there are activities (dialogs), and services and both have pretty complex life cycles (not just opened or closed) as you can see here
But back to your question: the right way to get rid of apps you don't want/need (also called bloatware in some cases) is to freeze them. One good tool for doing that is titanium backup.
Click to expand...
Click to collapse
I understand the point of apps that show up and are 0% cpu usage like facebook etc. I was only using it as an example. There are plenty of other apps that do infact chew up cpu and battery after it is loaded for the first time and is unable to close the background processes (they are shown in the watchdog and betterbatterystats). So the only way is to freeze and unfreeze everytime I use these apps?

block apps from autostart

hi
is there any app that blocks another apps to start. for example if i close the facebook app and remove it from the memory with the task manager, facebook starts after 10 seconds again. i dont mean apps like task killer that kill the app after it started. i hope you understand my question
Sorry for my bad englisch
Autostarts, startup manager, and system tuner.
Sent from Failtrix, the crappiest phone on the market.
Rom toolbox I think does this
Sent from my SGH-T989 with Cyanogenmod 9 Nightly Power.
emyaz said:
hi
is there any app that blocks another apps to start. for example if i close the facebook app and remove it from the memory with the task manager, facebook starts after 10 seconds again. i dont mean apps like task killer that kill the app after it started. i hope you understand my question
Sorry for my bad englisch
Click to expand...
Click to collapse
Android by design kill tasks when the resources become sparse. For this to work, an app must be able to request to be restarted once this occurs - the app (or more correct, "service") is sticky. This is why when you close the facebook app, it's restarted within seconds anyway.
If you are running Android 4 (ICS) or later, you can tell the phone not to autostart apps at boot directly from the Settings menu. Enter settings -> apps -> all, select e.g. Facebook, then click the button "Disable". Now it's gone, and for real this time! The disable button is at the place on the "Uninstall" button, and uninstallable apps are not possible to disable this way - but you can always remove them.
Some apps are neither disable nor uninstallable, though.
But if the autostart app is parental control r something like that, it wold be harder. Firstly the thing would not let you to settings. You could fool it when some settings notification appears, like there is wifi, by clicking on it you will get there without a problem, but you would not be able to delete it. To deal with it, I do personally recommend this: Root your device, get total commander for android (no, trust me, ES would not make it), open TC, get to mnt/asec where are stored installed apps files, find folder attached to that app, change the permisions that everybody could write in it, change ownership and group to some of your other apps and delete that folder. At the end, there shoul be emty folder with an emty folder in it. That should **** up the app so much that its not going to work anymore. Now you can do whatever you want.
Use Purify app
u can use boot manager module in xposed
I'm using clean master and it allows me to bock these app from autostarting.
It can solve by greenify pro smartly. You can google for greenify. After installing greenify (xposed installer) (need allow some feature) allow the modules it will work 100℅. If any errors message me on Facebook/n3xt2u

How to greenify apps?

I want to use greenify to "freeze" a certain apps when are not in foreground, do don't check in the background for location, connect to internet to update, and so on and so forth. Like if weren't installed from the beginning. I couldn't find anything in the user interface, the app looks more oriented to hibernate the entire phone (which I don't want).
scandiun said:
I want to use greenify to "freeze" a certain apps when are not in foreground, do don't check in the background for location, connect to internet to update, and so on and so forth. Like if weren't installed from the beginning. I couldn't find anything in the user interface, the app looks more oriented to hibernate the entire phone (which I don't want).
Click to expand...
Click to collapse
Look elsewhere. Greenify doesn't "freeze" any app.
tnsmani said:
Look elsewhere. Greenify doesn't "freeze" any app.
Click to expand...
Click to collapse
Ok look like there was a misunderstanding. Didn't mean "freeze" in the way Titanium Backup does, but rather prevent the app from doing anything unless in foreground. Greenify is capable of that, you just add the desired apps to the list.
Hibernation Manager is similar and has high ratings. Also explains things better.
scandiun said:
Ok look like there was a misunderstanding. Didn't mean "freeze" in the way Titanium Backup does, but rather prevent the app from doing anything unless in foreground. Greenify is capable of that, you just add the desired apps to the list.
Hibernation Manager is similar and has high ratings. Also explains things better.
Click to expand...
Click to collapse
My understanding is, when you add apps to the autohibernate list and when you continue to work with one app in the foreground, any other hibernated app will continue to run (if started while you are working or if already running) till the screen is locked. Only after that the running apps will hibernate. This is the behaviour I am seeing.
Correct me if I am wrong.
Edit: Even Hibernation Manager works only when screen is off. Please read its description in Play Store.
tnsmani said:
My understanding is, when you add apps to the autohibernate list and when you continue to work with one app in the foreground, any other hibernated app will continue to run (if started while you are working or if already running) till the screen is locked. Only after that the running apps will hibernate. This is the behaviour I am seeing.
Correct me if I am wrong.
Edit: Even Hibernation Manager works only when screen is off. Please read its description in Play Store.
Click to expand...
Click to collapse
Yes Hibernation Manager and Greenify only work when screen is off. That's enough for me, but do you know if any app that does it also when the screen is on? (App always hibernating unless on foreground)

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