Re: an app that never quits
Re: an app that never quits
- Subject: Re: an app that never quits
- From: Erick Calder <email@hidden>
- Date: Mon, 21 Sep 2009 23:30:13 -0700
On Sep 21, 2009, at 1:21 PM, Sixten Otto wrote:
On Mon, Sep 21, 2009 at 4:15 PM, Erick Calder <email@hidden> wrote:
ok, perhaps there's another way I can solve my problem. I have a
little app
called Trapster that uses something called "push technology"... I
think what
it means is that some server can send my app a signal and even
though the
app isn't running all the time, it gets woken up and responds to the
message... can anyone point me to a howto?
The Push Notification Service Programming Guide is here:
http://developer.apple.com/iphone/library/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/Introduction/Introduction.html
Be advised, though, that push notifications are really directed at the
*user*. Yes, the alerts you can push provide a convenient way for the
user to start up your app (and your app is specifically informed of
that), but this isn't like waking up a daemon process on the device.
Your app can still only run in the foreground, and only at the
discretion of the user, and will still be quit when the user is done
with it. (Users can also turn off the push alerts entirely.)
wow. ok. I guess that's not going to help much then. I must say
that without daemons the range of applications possible seems rather
quite narrow to me.
thanks - erick (who is struggling to get his first app built)
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