Re: Releasing modal view controller properly
> On Dec 17, 2016, at 18:19, David Duncan wrote: > > MyViewController *vc = [[MyViewController alloc] init]; What if you store that in a property of an object that persists as long as the window does? I'm guessing it's being deallocated before you think because of that release. Steve via iPad ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Releasing modal view controller properly
> On Dec 17, 2016, at 8:07 AM, Andreas Falkenhahn > wrote: > > I'm not using ARC so I need to take care of releasing objects manually. > I'm creating and presenting a modal UIViewController like this: > >MyViewController *vc = [[MyViewController alloc] init]; > >vc.modalPresentationStyle = UIModalPresentationFormSheet; >vc.preferredContentSize = CGRectMake(320, 320); > >[self presentViewController:vc animated:YES completion:nil] >[vc release]; > > When touching the modal view's close button my code does the following: > >[[self presentingViewController] dismissViewControllerAnimated:YES > completion:nil]; > > Unfortunately, the app crashes right after the modal view has completed > its transition animation. > > When I disable the line "[vc release]", I don't get any crashes and it > works fine. Can anybody explain why? I was expecting that > presentViewController() > retained the view controller so that it is safe for me to release it > right after making the call to presentViewController() because I don't > need it any longer but apparently, there's something wrong in my code > but I don't see it… The code you’ve presented is fine, so the issue is likely to be elsewhere. > > -- > Best regards, > Andreas Falkenhahn mailto:andr...@falkenhahn.com > > ___ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > 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: > https://lists.apple.com/mailman/options/cocoa-dev/david.duncan%40apple.com > > This email sent to david.dun...@apple.com -- David Duncan ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Releasing modal view controller properly
I'm not using ARC so I need to take care of releasing objects manually. I'm creating and presenting a modal UIViewController like this: MyViewController *vc = [[MyViewController alloc] init]; vc.modalPresentationStyle = UIModalPresentationFormSheet; vc.preferredContentSize = CGRectMake(320, 320); [self presentViewController:vc animated:YES completion:nil] [vc release]; When touching the modal view's close button my code does the following: [[self presentingViewController] dismissViewControllerAnimated:YES completion:nil]; Unfortunately, the app crashes right after the modal view has completed its transition animation. When I disable the line "[vc release]", I don't get any crashes and it works fine. Can anybody explain why? I was expecting that presentViewController() retained the view controller so that it is safe for me to release it right after making the call to presentViewController() because I don't need it any longer but apparently, there's something wrong in my code but I don't see it... -- Best regards, Andreas Falkenhahn mailto:andr...@falkenhahn.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
