appswitch module

[vivekg79]

I am importing appswitch module.


# import module
import appswitch

# push application to BACKGROUND
print appswitch.switch_to_bg(u"Menu")

------

I am getting following error

"no module named appswitch"

---

I have downloaded appswitch-v0.20051019.zip. I found there is no appswitch.py or pyc files. So, please suggest how to proceed?

[bogdan.galiceanu]

It might help if you tell us how you installed the module (I assume you're using an S60 2nd Edition phone).

[Simil Susan]

How do you install the module in 3rd edition phones?...

[bogdan.galiceanu]

How do you install the module in 3rd edition phones?...

Have you tired downloading it, signing it and then just installing it (send to phone or via PC Suite)?

[Simil Susan]

Yea I downloaded and while signing its showing error UID number is not within limit. I down loaded the zip containing .py and .pyd files from "http://www.homepages.ucl.ac.uk/~zchab6a/v3/pys60/index.htm" to the directory "C:\Program Files\PythonForS60\module-repo\dev-modules\appswitch" and included .cfg file also here.But when I packaged my script using application packager and opened my stand alone app in phone its giving error "dynamic module not initialized properly".
This was working fine with smswatch.I am using pys60 2.0.Where can I get kf_appswitch.pyd for pys60?
How can I compile the source code given?I am on a tight dead line.Somebody please help....

[Simil Susan]

Is there any method to check if my application is in foreground? Can appswitch do it? I checked but could not get it

[Simil Susan]

Hey I got it.

focus in appuifw can do it.

import appuifw
def cb(fg):
if(fg):
print "foreground"
else:
print "background"

appuifw.app.focus=cb

[Simil Susan]

Hi all

I am trying to call appswitch inside a thread but it is hanging my application. Can someone tell me why is it so? My code is as below

import appswitch
import thread

def app(a, b, *args):
appswitch.switch_to_fg(u"myapp")

thread.start_new_thread(app, (0,0))

Wont appswitch work in a thread?

Regards
Simil

[mwibbels]

No, appswitch needs to be used on the main thread because it uses resources that are claimed by and are only usable by the main thread. But you say 'hanging my application', I would expect it to crash.

You could create an e32.aocallable so you can initiate the call from the second thread, whilst the call is actually executed on the main thread.

More detailed explanation of the root cause: the appswitch module uses the following code:

TApaTaskList taskList(CEikonEnv::Static()->WsSession());

The CEikonEnv::Static() call uses TLS (Thread Local Storage) to find the static reference to the CEikonEnv, which is initialized for the main thread only. On other threads this should PANIC.

[Simil Susan]

Hey thanks a lot for the response. I used e32.ao_callgate to do it. It worked well. I modified my code like below:

import appswitch
import thread

def app(a, b, *args):
appswitch.switch_to_fg(u"myapp")

app1=e32.ao_callgate(app)
thread.start_new_thread(app1, (0,0))

It worked perfectly as I wanted it to be.

Regards
Simil