[android-developers] Re: Froyo -- How to detect that my application has been killed?
Hi Dianne,
I have the same issue with the froyo.
I use the start service UI as the following code.
//CurrentActivity.java (extend from ListActivity)
Intent intent_start_service=new
Intent(CurrentActivity.this,MyRunningService.class);
intent_start_service.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startService(intent_start_service);
I always get the following log message after starting the service
around 30 mins~2hours, and the service is not working anymore.
07-31 15:03:00.001: INFO/ActivityManager(85): No longer want
com.Myapplication (pid 4726): hidden #16
07-31 15:03:00.091: WARN/ActivityManager(85): Scheduling restart of
crashed service com.Myapplication/.MyRunningService in 5000ms
07-31 15:03:05.131: INFO/ActivityManager(85): Start proc
com.Myapplication for service com.Myapplication/.MyRunningService:
pid=5045 uid=10077 gids={}
The MyRunningService seems to be killed by the OOM, and the
notification icon on the status bar with Ongoing is also shown to
the user. Besides, I don't see any message from my customized log
message in the onDestroy() of this service.
//MyRunningService.java
public void onDestroy()
{
Log.e(TAG,Oh!!MyRunningService was killed );
}
//
The issues:
1. Why MyRunningService is always killed by the OOM? Can I prevent it
or can I detect the killing behavior by the service itself and restart
the service automatically with some good solution?
2. Is there any way to clean the notification icon as the service is
been killing ?
Thank you very much!
On 7月31日, 上午3時38分, Dianne Hackborn hack...@android.com wrote:
For the behavior you are seeing, are you using the bind server instead of
the start service UI? If you do that then yes your service will not be
restarted -- because the process that is bound to it is in the background,
so free to be killed, and once it gets killed the binding goes away and the
service does not need to run any more.
But this exact behavior is expected to happen when the device is low on
memory, so it is something apps need to deal with correctly anyway.
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[android-developers] Re: How does forceStopPackage work in Android 2.2 (Froyo)?
Thanks Dianne's reply.
What is the main difference between killBackgroundProcesses and
forceStopPackage?
or forceStopPackage is equal to the restartPackage in Android 2.1?
Thanks again.
On 6月25日, 上午8時26分, Dianne Hackborn hack...@android.com wrote:
Yes it is an internal API.
On Thu, Jun 24, 2010 at 4:13 PM, Happy C. taiwanhappin...@gmail.com wrote:
How does forceStopPackage work in Android 2.2 (Froyo)?
Thanks Google released 2.2 source code.
In this code-InstalledAppDetails.java
It shows how android 2.2 do the force close function.
private void forceStopPackage(String pkgName) {
ActivityManager am = (ActivityManager)getSystemService(
Context.ACTIVITY_SERVICE);
am.forceStopPackage(pkgName);
checkForceStop();
}
However forceStopPackage method is not in ActivityManager class.
http://developer.android.com/reference/android/app/ActivityManager.html
Is it a interneal API? Many Thanks.
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hack...@android.com
Note: please don't send private questions to me, as I don't have time to
provide private support, and so won't reply to such e-mails. All such
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[android-developers] How does forceStopPackage work in Android 2.2 (Froyo)?
How does forceStopPackage work in Android 2.2 (Froyo)?
Thanks Google released 2.2 source code.
In this code-InstalledAppDetails.java
It shows how android 2.2 do the force close function.
private void forceStopPackage(String pkgName) {
ActivityManager am = (ActivityManager)getSystemService(
Context.ACTIVITY_SERVICE);
am.forceStopPackage(pkgName);
checkForceStop();
}
However forceStopPackage method is not in ActivityManager class.
http://developer.android.com/reference/android/app/ActivityManager.html
Is it a interneal API? Many Thanks.
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[android-developers] When will Android 2.2 source code release
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[android-developers] Re: Kill an app / package in API 8 (Froyo)
Hi Dianne,
Sorry to bother you.
Does the Force stop in the setting of android 2.2 also use
KillBackgroundProcess or use the system level API (developer can't
use directly) to make it?
I have tried the KillBackgroundProcess and adding the related
permission, but it can't stop the running app either or running
service like Force stop does.
//ddms under Force stop
06-15 22:08:10.505: INFO/ActivityManager(62): Force stopping package
com.MyTestApp/com uid=10037
06-15 22:08:10.505: INFO/Process(62): Sending signal. PID: 647 SIG: 9
//ddms under my KillBackgroundProcess
06-15 22:05:32.725: INFO/Process(62): Sending signal. PID: 638 SIG: 9
06-15 22:05:32.754: INFO/WindowManager(62): WIN DEATH:
Window{43f4b2d8 com.MyTestApp/com.MyTestApp.act1 paused=false}
06-15 22:05:32.754: INFO/WindowManager(62): WIN DEATH: Window{43fbd930
com.MyTestApp/com.MyTestApp.act2
paused=false}
Force stop and my KillBackgroundProcess seems to have sent the
same signal 9. but they behave differently.
I don't know why it doesn't work in my KillBackgroundProcess.
Thanks very much!
On 6月3日, 上午6時41分, Dianne Hackborn hack...@android.com wrote:
On Wed, Jun 2, 2010 at 1:18 AM, Lee lee.wil...@googlemail.com wrote:
killBackgroundProcesses works (you need a permission for it), but it
merely restarts the background services, so it's a little poorly
named.
Actually it does exactly what it says -- it kills a process. If an
application has a service that it wants to keep running, the normal behavior
of the system kicks in to restart the service for the app. As the
documentation says, this allows the app to do the same thing is the out of
memory killer (killing processes) without breaking applications by causing
their services to be stopped when they don't expect (or unregister their
alarms or the other things that fully stopping an app does).
--
Dianne Hackborn
Android framework engineer
hack...@android.com
Note: please don't send private questions to me, as I don't have time to
provide private support, and so won't reply to such e-mails. All such
questions should be posted on public forums, where I and others can see and
answer them.
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