One more thing, it has nothing to do with the DateFormatter. So somehow UIDatePicker released its date somewhereoutside of my code... I guess it has something to do with autoreleasepool.
On Fri, Aug 21, 2009 at 5:07 PM, DairyKnight <[email protected]> wrote: > > OK. Here's the code of my UIViewController: > > - (void)viewDidLoad { > > [super viewDidLoad]; > > okButton = [[UIBarButtonItem alloc] initWithTitle:@"OK" style: > UIBarButtonItemStyleBordered target:self action:@selector(okAction:)]; > > self.navigationItem.rightBarButtonItem = okButton; > > [okButton release]; > > [self.view setBackgroundColor:[UIColor blackColor]]; > > NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; > > [dateFormatter setDateFormat:@"H : m"]; > > NSDate *date = [dateFormatter dateFromString:@"0 : 0"]; > > [picker setDate:date]; > > [dateFormatter release]; > > } > > and if you click on the button, in > -(void) okAction:(id) sender > > { > } > the Reference count of 'date' is somehow mystically decreased by 1. There's > no other code in the message > loop, and what I did was directly press the button on the View. > > > > On Fri, Aug 21, 2009 at 3:38 PM, Graham Cox <[email protected]>wrote: > >> >> On 21/08/2009, at 5:32 PM, DairyKnight wrote: >> >> NSDate *date = [[NSDate alloc] init]; >>> [picker setDate:date]; >>> [date release]; // Opps! immediate release of 'date' causes program >>> crash. >>> >>> >>> So is there a rule of thumb, like when should we release immediately >>> after >>> passing the object to some Cocoa API calls? >>> >> >> >> This should work OK, so if it's crashing, you have a bug elsewhere. >> >> Once you are no longer interested in an object, you are free to release >> it. Another object that needs to keep it will retain it. >> >> --Graham >> >> >> > _______________________________________________ Cocoa-dev mailing list ([email protected]) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [email protected]
