Donal,
You having to call Looper.prepare makes it seem like you're not creating
your task and calling its execute() from the UI thread.
Is that so? The docs is actually quite clear on this, see "Threading rules":
http://developer.android.com/reference/android/os/AsyncTask.html
13.09.2010 18:50, Donal Rafferty пишет:
Kostya,
I do create a new Task as follows everytime:
new SelectRingtoneTask().execute();
But I had to use Looper.prepare(); to get it to work in my Service,
this could be causing an issue?
Is there a proper way to use a AsyncTask in a Service without needing
to call Looper.prepare();?
2010/9/13 Kostya Vasilyev <[email protected] <mailto:[email protected]>>
Donal,
It sort of seems like you reuse the same task over and over.
What happens if you create a new task each time you need to
perform the asynchronous operation?
-- Kostya
13.09.2010 17:44, Donal Rafferty пишет:
Kostya,
Thanks, that conversation can be seen here:
http://groups.google.com/group/android-developers/browse_thread/thread/07ea01892ee7a5f4/9f71428217c2cd44
However the condition is in the cancel code, which I no longer
use as I am running the code in a Service so I have no need to
cancel it.
2010/9/13 Kostya Vasilyev <[email protected]
<mailto:[email protected]>>
Donal,
Search the list: there was a post within the last month (I
think) from Romain Guy about some kind of thread race issue
in AsyncTask having been fixed in Froyo (or was it
post-Froyo?) - anyway, it's somewhere in the archives.
-- Kostya
13.09.2010 16:07, Donal Rafferty пишет:
Sorry I meant only the preExecute is run
On Mon, Sep 13, 2010 at 1:05 PM, Donal Rafferty
<[email protected] <mailto:[email protected]>> wrote:
I have managed to implement the Task in my Service now
but the original problem still remains.
I dont cancel the Task at all in my service, I simply
play the ringtone in the postExecute method of the
Asynctask if a flag is true, if its not I dont.
But I get the same issue, after a couple of runs the
AsyncTask simply stops getting to the doInBackground
method, only the postExecute method is run.
Its very strange and really annoying me now.
Is there any reason why an AsyncTask would behave like
this without cancel being used?
On Mon, Sep 13, 2010 at 10:58 AM, Donal Rafferty
<[email protected] <mailto:[email protected]>> wrote:
Monday morning coding! :)
I return my aidl definition in my service's onBind:
@Override
public IBinder onBind(Intent arg0) {
Log.d("XXX", "Status: onBind Called");
return myServiceStub;
}
IBinder myServiceStub = new IMyService.Stub(){
//aidl methods
};
And use this to call methods from my Activity, so I
would need to be able to import
android.media.Ringtone in my aidl definition but I cant.
So I'm still stuck with it not working :(
On Mon, Sep 13, 2010 at 10:32 AM, Kostya Vasilyev
<[email protected] <mailto:[email protected]>> wrote:
Donal,
No, a service is a service, and a binder is a
binder.
The binder you get in the callback is the binder
returned by the service's onBind.
This example:
http://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/app/LocalService.html
has a binder implementation that returns a
reference to its service, so you can do this
public void onServiceConnected(ComponentName
className,
IBinder binder) {
LocalService.LocalBinder binder =
(LocalService.LocalBinder) binder;
*LocalService service = binder.getService();*
}
This example has one flaw: it leaks a service
reference (since LocalBinder is a non-static
inner class of LocalService). Using a static
inner or a top-level class for LocalBinder,
fixes that (AFAIK).
-- Kostya
13.09.2010 13:16, Donal Rafferty пишет:
09-13 10:06:53.566:
ERROR/AndroidRuntime(18791): Uncaught handler:
thread main exiting due to uncaught exception
09-13 10:06:53.676:
ERROR/AndroidRuntime(18791):
java.lang.ClassCastException:
com.xxx.phone.MyService$1
09-13 10:06:53.676:
ERROR/AndroidRuntime(18791): at
com.xxx.phone.ui.MyActivity$2.onServiceConnected(MyActivity.java:515)
So it doesn't like the cast from binder to Service?
How can I fix that do you know? What am I
missing from the example?
--
Kostya Vasilyev -- WiFi Manager + pretty widget --http://kmansoft.wordpress.com
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