Re: iphone SDK session duration
Re: iphone SDK session duration
- Subject: Re: iphone SDK session duration
- From: Bess Ho <email@hidden>
- Date: Tue, 28 Apr 2009 17:10:27 -0700
Sorry for the delay in response. I'll need more help.
I follow suggestions on using applicationDidFinishLaunching: and
applicationWillTerminate: methods on AppDelegate.
It won't print NSLog when I stop the app on Console and throw errors when I
leave the app on simulator by pressing the home button to exist the app like
the device.
I didn't get any warnings or errors on building the project.
I used NSLog(@"Session: %.1f", [now timeIntervalSinceDate:then]);
Please help!
*project code:*
http://code.google.com/p/iphonebuilder/downloads/list
- (void)applicationDidFinishLaunching:(UIApplication *)application {
// Starting Session
}
- (void)applicationWillTerminate:(UIApplication *)application {
// Ending Session
}
*Errors on console when I exit the app on simulator*
*** -[NSObject timeIntervalSinceReferenceDate]: unrecognized selector sent
to instance 0x521fe0
2009-04-28 17:07:32.283 sessiontime[22584:20b] CoreAnimation: ignoring
exception: *** -[NSObject timeIntervalSinceReferenceDate]: unrecognized
selector sent to instance 0x521fe0
On Wed, Apr 22, 2009 at 9:57 AM, Luke the Hiesterman <email@hidden>wrote:
> What's wrong with the NSDate solution below?
>
> Luke
>
> On Apr 21, 2009, at 10:49 PM, Bess Ho wrote:
>
> I couldn't get any working responses from iphone developer forum or iphone
> meetup group. I am hoping that this group with more experience cocoa
> developers with understanding on MVC model, Xcode.
>
> On Tue, Apr 21, 2009 at 6:47 PM, Luke the Hiesterman <email@hidden>wrote:
>
>> Sounds like you've already answered your question.
>>
>> Luke
>>
>> On Apr 21, 2009, at 4:00 PM, Bess Ho wrote:
>>
>> Is this appropriate mailing list to ask iphone SDK questions?
>>>
>>> How do you measure session duration on a utility application with 3
>>> ViewControllers?
>>>
>>> Use NSDate to mark the starting and ending the session and print the time
>>> lapsed on NSLog.
>>>
>>> --
>>> Bess Ho
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>>
>>
>
>
> --
> Bess Ho
>
>
>
--
Bess Ho
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