> On Dec 30, 2015, at 18:20 , Rick Mann <rm...@latencyzero.com> wrote: > > >> On Dec 30, 2015, at 18:14 , Roland King <r...@rols.org> wrote: >> >> >>> On 31 Dec 2015, at 09:12, Rick Mann <rm...@latencyzero.com> wrote: >>> >>> I have a UICollectionView in a UINavigationController, and I'd like to >>> customize the transition from one to the next on push. So I set up the >>> first VC as UIViewControllerTransitioningDelegate, and in >>> prepareForSegue(_:sender:) set the destination VC's transitioningDelegate >>> to self. >>> >>> But my delegate methods never get called. The docs say to set >>> modalPresentationStyle to .Custom, but that has no effect (also, it's a bit >>> weird since this is not technically a modal presentation, is it?). >>> >>> Search for solutions online turns up only custom segues, which is not >>> really what I want. >>> >>> Is it even possible to do this with segues? What am I missing? >>> >>> TIA, >> >> My thought here is that push != present, ie pushViewController(_:animated) >> doesn’t do the same thing as presentViewController(_:animated:completion) >> and that push calls the former and other modes call the latter. I dunno what >> I’d try, the whole UIViewController custom transitioning thing confuses the >> bananas out of me and I never found the WWDC videos on them to be as helpful >> as I wished. Perhaps change the push to a present to get it on the screen, >> then when you’re done with the transition, call pushViewController( vc, >> animated : false ) to fix up the nav stack. That will probably look really >> ugly as the nav bar will likely just snap to the new content. >> >> There’s probably 18 other ways to do it. I’d bung some hooks into any >> methods I could find which run early in the viewcontroller presentation >> lifecycle and see if there’s a transition coordinator or animation >> coordinator or whatever objects transitions create which I could hook into >> and animate alongside. >> >> In general .. having fiddled with custom transitions when the were new and >> shiny .. I don’t bother with them any more. > > It seems to be a common ocurrence that Apple introduces a "helpful" new way > to do things that aren't fully integrated with existing "new" (and definitely > not deprecated. e.g. segues) ways of doing things, and the documentation and > examples are lacking. Bruce Nilo's 2013 presentation on the subject was > particularly lacking in information. > > Having said that, I found this sample code (which did not turn up when > searching the sample code for "transition"), which hopefully works. My > biggest beef at this point is that the segue *must* be a modal presentation > segue (in fact, it seems all custom transitions are for modal presentation > only), which seems like a silly limitation, and is not well-documented. > > > https://developer.apple.com/library/ios/samplecode/SegueCatalog/Introduction/Intro.html > > You're looking for the "Modal" button in that app, which has a custom segue > that uses the transition stuff.
Welp, that doesn't work in the push transition. It hides the UINavigationBar. The sample code shows it as a modal transition that takes over the screen, but I want to do a push transition. Thing is, it doesn't seem that any of the transition stuff works properly if you make it anything other than a modal (i.e. not a show/push). Goddammit, Apple. -- Rick Mann rm...@latencyzero.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
