Re: applicationWillTerminate: issue
Re: applicationWillTerminate: issue
- Subject: Re: applicationWillTerminate: issue
- From: Graham Cox <email@hidden>
- Date: Tue, 25 Aug 2009 11:02:54 +1000
On 25/08/2009, at 10:33 AM, Michael de Haan wrote:
So, 2 quick questions.
1) Is what I am seeing expected behavior or am I doing something
wrong.
2) Although not strictly speaking a cocoa question, would better
design be to collect all "values/properties" to be saved in one
location, thus avoiding the problem I am having?
I'd suggest you should decentralise your preferences handling, or at
least, use NSUserDefaults, which centralises them for you. In the bad
old days, the classic model was to load all your prefs at start up and
save them all at quit, but really it's easier just to get/set each
preference at its point of use. You can do that easily using
[NSUserDefaults standardUserDefaults]. Then this problem simply goes
away as well as keeping your code nice and compartmentalized and even
reusable despite having persistent state.
But if for some reason you have to get notified of a terminate, the -
applicationWillTerminate: is sent to the application's delegate, so if
you have one that implements the method it will be called. Otherwise
you have to specifically subscribe to the notification using the
NotificationCenter.
--Graham
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