For a beta version of an app, let's say I want to make sure that users cannot
use the beta for far too long, far longer than the app goes out of beta. (Note
that this case would in reality rarely occur. Most users would end up getting
notified of a new update far sooner. This is just a "safety" measure.)
So this is how I thought of doing it. Let's say I want to make the app expire
on January 1, 2011 (since I'm sure that I'll have a new beta release or go out
of beta before then). What do you think about putting the following code in
AppController's awakeFromNib?
-----------------------
NSDateComponents *comps = [[NSDateComponents alloc] init];
[comp setDay:1]; [comp setMonth:1]; [comp setYear:2011];
NSCalendar *gregorian = [[NSCalendar alloc]
initWithCalendarIdentifier:NSGregorianCalendar];
NSDate *expiryDate = [gregorian dateFromComponents:comps];
NSDate *now = [NSDate date];
if ([now compare:expiryDate] == NSOrderedDescending)
{
NSRunAlertPanel(@"App Expired",@"Visit website",@"OK",nil,nil);
[NSApp terminate:self];
return;
}
-----------------------
Do you think this would work? I mean, it seems that it should, but one can
never be sure. Plus, this might be a lousy method, compared to what some of you
geniuses in here might have conjured up over the ages.
Thanks, U.
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