Android :: How To Properly Kill An Android Activity?
Nov 19, 2010
There seems to be a lot of controversy about how to stop applications in Android, so I'll explain what I'm trying to do and why in hopes that I can receive some guidance on how to properly implement the functionality I'm looking for. I got tired of plugging my phone into power when I get into the car, connecting the headphones, turning BT on, turning WiFi off, and then launching "Car Home" because my dock doesn't do so automatically--it's just a piece of plastic mounted to the dash. So my application automatically does these things when I connect power--and when I disconnect power, it turns BT off and WiFi back on, but unfortunately, Car Home is still running. I want to automate the entire process, so I never have to launch (or shut down) Car Home, and make getting in and out of the car a little less frustrating. What is the best way for me to tell the "Car Home" application to stop specifically because power is disconnected and I'm getting out of the car, without me having to navigate to it's home page and click "Exit"?
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Feb 16, 2010
Activity 1 starts a Service, using the standard Intent. Activity 1 starts Activity 2. Then, Activity 1 gets finished().
Now, there's only Activity 2.
How does Activity 2 kill the Service, since that Intent was generated in Activity 1? I don't want to pass the Intent everywhere...
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Dec 7, 2009
Any one knows how to Kill my all the activity at a time ?
Am inside so many sub menu if i click exit button there it should close all teh activity and show the OEM Screen.
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Nov 11, 2010
What happens here is I call the crop image activity and then the camera activity runs in background. When I finish this activity, the camera is still alive at the background. So how can I kill programmatic the camera activity running in background?
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Sep 27, 2010
How can I kill Android activity from asynchronous thread? In my android application, I start another activity using startActivity. Is there anyway for me to kill that activity I started after several minutes?Or is there any way beside using thread?
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Aug 4, 2010
I have activity A that starts activity B which starts activity C
A -> B -> C
When a user clicks on a button in activity C, i want to bring A to the top of the stack and take B & C completely out of the stack. Is there a way to do this ? ?
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Feb 17, 2010
When the user press the home key, the onPause method is called. At this time, the application is supposed to save its state so it can be properly recovered later.
However, and if the state is taking too much time? For example, issuing a closeAllNetworkConnections that was waiting a feedback from the server, or just if the amount of information we're writting to disk is a lot of info... what would happen?
In my tests, i'm getting from 300-500 ms of time until the process is killed.
Is there a safer place to put a "save everything and quit" code so that it can safely save everything before a "kill the activity" task is issued?
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Jun 2, 2010
My application calls Runtime.exec() to launch an executable in a separate process at start up time. I would like this child process to get killed when parent activity exits. Now I can use onDestroy() to handle regular cases, but not "Force quit", shutdowns from DDMS, or kill from the console since those don't run onDestroy(). The addShutdownHandler() does not seem to be invoked in these cases either. Is there any other hook or signal handler that informs my activity that it's about to get terminated? As an alternative is there a way to have the system automatically kill the child process when the parent die?
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Jun 30, 2010
Is it possible if my application is running and that time if any incoming call arrives then i want to kill or wait that call (phone activity). any one achieve this type of work in android. i have a no idea how to do this.
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Nov 24, 2009
I'm testing how my app behaves when killed by the OS due to low memory conditions. I always have three activities on the stack, like: A B C (then C launches maps or some other heavy process)
when my app is killed, and I return to it, C starts itself up again ok. When I hit the back button to go to B, I [sometimes] get an exception thrown which I can't trace. Output is below. I don't know where to go from here. I've only seen one other post mentioning this exception, but it was related to a reproducable error when rotating the device. This only happens sometimes.
CODE:....................
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Dec 9, 2009
In my android application, I start another activity using 'start Activity'. Is there anyway for me to kill that activity I started?
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Dec 17, 2009
I have the startup auditor and Task Panel apps. I want to try and setup the phone to always have as much memory available as possible. Most of them are pretty obvious but there are a few I'm not sure of. Does anyone have a comprehensive list of services/processes/etc. that we can safely kill off and/or set for auto-kill/disable at startup? Edit: One I was curious about is Google Partner Setup. I have killed it off without any issues through Task Panel. But would having it on the auto-kill list be OK?
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Nov 1, 2009
Any way to reduce the 12 second delay?
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Jul 30, 2010
I s there any way to kill the entire application at once.Not using with finish() or system.exit() ..all these two will kill the activity ,but not the appication. Is there any way to kill the entire application from any activity.
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Jun 8, 2010
I started a sample application and called finish() method when user clicks the button. Then it is showing the android home screen and called the on Destroy() method also. But if i am executing the 'ps' command in android shell still it is showing the dip of my application. What is the meaning of finish()? Is it not terminate the process? if not how can i terminate the process(we can do kill -9 pid in android shell but i want programmatic approach).
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Oct 15, 2010
Will iOS & WP7 Kill Android?
Speculation has surfaced on the net, that these two platforms will eventually kill Android. What's your opinion?
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Aug 31, 2010
How could I kill all the Activities of my application ?
I try using this.finish() but it just kill one activities.
In fact, I would like when the user touch the button BACk (in only one of the activities), the application do the same as he touch HOME Button
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Jul 16, 2009
I have many contacts in my G1,much as 2000. When i call sb, the system will find this one is in my contacts or not.Is there any posibilities that the system will stop searching this contact and kill this process because this search will take a relatively long time ?
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Jul 14, 2009
I am currently writing a program to kill processes that the users choose to end. From the log Cat, I notice that a Signal 9 has been sent to the application but the process is still running. I am only able to kill my own process through the code below. I understand that the kernel only allow killing of processes that have some relation to my program, but how do I kill other processes other than my own?
Below is my code: android.os.Process.killProcess(processID);
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Dec 25, 2009
I am looking for an app that kills tasks that are running on a schedule. To be able to choose how often it kills the tasks, 5 or 15 or 30 minutes. So I can have the app running and know that every lets say 15 minutes it kills the tasks that I selected to always be killed I would prefer this method over screen blank apps that kill tasks.
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Jun 20, 2010
Is there a way to kill, end or completly stop an app without using a task killer, a task manager, whatever you call it? I mean within the Android os without installing an external app?
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Jun 1, 2010
I have an app killing feature in one of my apps but up to API 7 i always worked with restartPackage(String PackageName); but since API 8 its deprecated so I tried killBackgroundProcesses(String PackageName); but that didn't work either. Both are methods are in the ActivityManager class.
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Sep 3, 2010
I haven't manage all errors on my application anymore. So I would like to know if it is possible to Kill the entire app when it crashes? (when the message "app MyApp crash, force close" appear, I would like the application to be killed when user clicks on "force close")
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Jun 23, 2010
I want to offer the user an option to exit the application as I need to delete some sensitive data, which is stored in the SharesPreferences as long as the application needs it.
As soon as the user wants to exit, the password in the SharedPreferences should be wiped and of course all activities of the application should be closed (it makes no sense to run them without the known password - they would crash).
How can I do that?
System.exit(0) and finish() only exit the current activity - useless. I know there is a taskmanager app. How is that one doing it? It's able to kill the whole application ...
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Jun 1, 2010
I have an app killing feature in one of my apps but up to API 7 i always worked with restartPackage(String PackageName); but since API 8 its deprecated so I tried killBackgroundProcesses(String PackageName) but that didn't work either.
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May 26, 2009
how do i kill an android application
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Sep 27, 2009
Whats safe to kill with Taskiller? Did not realize there was so much running. If I kill things can I just manually start them up when needed? Would I still receive email/messages? I see the things highlighted in white does use any power, just yellow needs looking into.
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Apr 29, 2010
I am basing my game off of the Lunar Lander demo.
The problem I am having is my game not restoring its last saved state when it comes back into focus.
When the game loses focus/quits it saves all the information to a Bundle correctly, then runs surfaceDestroyed() to shut down the thread.
When I restart the game, I thought onCreate(Bundle savedInstanceState) method was supposed to always start first, then restore the saved Bundle if it is not "Null". But because it sees that I have started/ created a thread last time, it jumps straight to surfaceCreated method.
The only thing I can think of is to find a way to get rid/destroy the thread so that it runs onCreate at the start. However the stop() and destroy() methods for threads have been depreciated. Is there anyway to do this? Or is there a better method of saving an instance of the game? code...
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Dec 31, 2012
I am developing chatting app in which i have to run my app continuously in background also. but unfortunately sometime my app kill by Android OS. and i have to relogin. Is there any way to run my app continuously in background. Some App is available on Google play which is running in background.
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Aug 9, 2010
I am a freshman and my English is poor.In some cases, I terminate the application and the DVM process couldn't be killed when a exception through, why is this? and how the problem is to be tackled?
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