How to make my app keep running in the bg

William Prothero prothero at earthednet.org
Fri Sep 30 14:59:34 EDT 2016 

Folks:
Ok, I just tested my app with background audio turned on, but without setting mobileLockIdleTimer. The audio clip stayed playing to the end, but the app stopped running. It was supposed to advance to the next audio clip. So, in essence, it didn’t do what I needed it to do, which is to continue to play through a sequence of audio clips.

My solution is to use mobileLockIdleTimer. That keeps the app in front and does what I need.

BTW, I’m on OSX 10.11.6 and iOS 9, XCode 8

Best,
Bill

> On Sep 30, 2016, at 11:52 AM, William Prothero <prothero at earthednet.org> wrote:
> 
> I’m not sure background audio works. It was one of the settings I tried. I should re-test it. 
> Bill
> 
>> On Sep 30, 2016, at 8:10 AM, Ralph DiMola <rdimolad at evergreeninfo.net> wrote:
>> 
>> Selecting "background audio" in the iOS settings will keep the app alive when focus is lost. This will change the "suspend" plist setting that we used to have to hack every time.
>> 
>> Also "disable ATS" will allow the lc browser to access non-https web pages.
>> 
>> 
>> Ralph DiMola
>> IT Director
>> Evergreen Information Services
>> 
>> 
>> 
>> <div>-------- Original message --------</div><div>From: Mike Kerner <MikeKerner at roadrunner.com> </div><div>Date:09/30/2016  10:05  (GMT-05:00) </div><div>To: How to use LiveCode <use-livecode at lists.runrev.com> </div><div>Subject: Re: How to make my app keep running in the bg </div><div>
>> </div>This is one of those things that is more involved.  You can read up on it
>> by searching for those terms on the list, but the abreviated version is
>> copy livecode out of your applications folder
>> right-click and view package contents
>> drill down to the engine for the ios devices you are targeting (see the
>> discusson on the list for more)
>> change the parameter
>> close it all back up
>> copy LC back into the application folder
>> 
>> You have to do this for each version of LC that you download.
>> 
>> On Fri, Sep 30, 2016 at 9:13 AM, Earthednet-wp <prothero at earthednet.org>
>> wrote:
>> 
>>> Mike,
>>> I haven't tried that. I fire up my iOS dev projects rarely enough that my
>>> skills with the intricacies are pretty rudimentary. For now, just keeping
>>> the app from going to sleep is good enough.
>>> 
>>> Thanks again for your help. The step by step procedure, with your comments
>>> on several "gotchas" was extremely helpful.
>>> Bill
>>> 
>>> William Prothero
>>> http://es.earthednet.org
>>> 
>>>> On Sep 30, 2016, at 5:19 AM, Mike Kerner <MikeKerner at roadrunner.com>
>>> wrote:
>>>> 
>>>> have you tried tweaking the settings.plist, specifically replacing
>>>> ${APPLICATION_EXITS_ON_SUSPEND} with <false/>?
>>>> 
>>>> On Thu, Sep 29, 2016 at 8:55 PM, William Prothero <
>>> prothero at earthednet.org>
>>>> wrote:
>>>> 
>>>>> Scott:
>>>>> I think I’ve got it.
>>>>> 
>>>>> mobileLockIdleTimer
>>>>> 
>>>>> Best,
>>>>> Bill
>>>>> 
>>>>>>> On Sep 29, 2016, at 5:46 PM, William Prothero <
>>> prothero at earthednet.org>
>>>>>> wrote:
>>>>>> 
>>>>>> Scott:
>>>>>> I use the native sound player to play the sounds. Actually, what I
>>>>> really want to do is to keep the app in the foreground. I play the audio
>>>>> through my wifi and if it goes to background, the wifi gets disconnected
>>>>> and it’s a real pain. A previous version of this app stayed in the
>>>>> foreground. So, perhaps there is some kind of property that will keep an
>>>>> app in the foreground?
>>>>>> Bill
>>>>>>> On Sep 29, 2016, at 5:41 PM, Scott Rossi <scott at tactilemedia.com>
>>>>> wrote:
>>>>>>> 
>>>>>>> AFAIK, you can't do this on iOS for just a timer.  I was told from
>>>>> someone
>>>>>>> high up in Apple that the phone will automatically end or reset a
>>>>>>> backgrounded app after roughly 10 minutes or so (at most).  Audio is a
>>>>>>> different story, because Apple allows music-playing apps to run when
>>>>>>> backgrounded, but I imagine you'd need to make use of Apple's native
>>>>> music
>>>>>>> player for this to work.  I'm not sure if the native LC player
>>> qualifies
>>>>>>> -- have you already tried backgrounding an LC app with the native
>>> player
>>>>>>> running?
>>>>>>> 
>>>>>>> Don't expect to fool Apple by enabling a non-music-playing app to keep
>>>>>>> itself active by playing sound.  I was told this story: Apparently
>>>>> several
>>>>>>> versions back, Facebook came out with a version of their mobile app
>>>>> which
>>>>>>> included a player that played silence when backgrounded, as a means to
>>>>>>> keep itself active.  Apple discovered the behavior and slapped
>>> Facebook
>>>>> on
>>>>>>> the wrist, after which Facebook claimed it was a bug that was
>>> introduced
>>>>>>> by mistake.
>>>>>>> 
>>>>>>> It's possible the Apple has changed it policy on this over the last
>>> year
>>>>>>> or so, but I doubt it.  Google may be more forgiving with Android.
>>>>>>> 
>>>>>>> Regards,
>>>>>>> 
>>>>>>> Scott Rossi
>>>>>>> Creative Director
>>>>>>> Tactile Media, UX/UI Design
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> On 9/29/16, 5:16 PM, "use-livecode on behalf of William Prothero"
>>>>>>> <use-livecode-bounces at lists.runrev.com on behalf of
>>>>>>> prothero at earthednet.org> wrote:
>>>>>>> 
>>>>>>>> Folks:
>>>>>>>> I have an app that plays sounds and I donąt want the iPhone to stop
>>>>>>>> playing them when the phone hibernates. I also have a timer that runs
>>>>> and
>>>>>>>> I donąt want it to stop after a minute or so.
>>>>>>>> 
>>>>>>>> So, how can I keep an app up front and running without constantly
>>>>>>>> touching the screen?
>>>>>>>> 
>>>>>>>> I know there is a way to do this, but how?
>>>>>>>> Thanks,
>>>>>>>> Bill
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>>> William Prothero, Ph.D.
>>>>>>>> University of California, Santa Barbara, Emeritus
>>>>>>>> prothero at earthednet.org
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
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>>>>>>> 
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>> -- 
>> On the first day, God created the heavens and the Earth
>> On the second day, God created the oceans.
>> On the third day, God put the animals on hold for a few hours,
>>  and did a little diving.
>> And God said, "This is good."
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>> use-livecode mailing list
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