Thanks for the tip Ken. It had forgot about the automatically-created contentView, and that was indeed the source of my problem. Besides setting up animation for the contentView, I also had to switch to calling replaceSubview on the contentView instead of directly on the NSBox.
Thanks again. On Feb 2, 2010, at 2:56 PM, Mark Sanvitale wrote: > Hi Mark, > > You probably want to set the animations on the box's contentView in addition > to the box itself. > > Box forwards modifications to its subviews array to its contentView. > However, this is something we'd like to get rid of eventually. It's just a > question of doing it compatibly, having time to evaluate the impact on apps, > etc. > > -Ken > Cocoa Frameworks > > On Tue, Feb 2, 2010 at 10:56 PM, Mark Sanvitale <[email protected]> wrote: > "Breaks" is a subjective description (thus the quotes) for what I > experienced, but from my perspective it is accurate. Here's what happened. > I had a custom subclass of NSView and I setup it up (in code) to be > layer-backed with a CATransition for the "subviews" key (i.e. fade in/out > animation for changes to the subviews). All is well. > > Changed this custom subclass to descend from NSBox (instead of NSView) so I > could take advantage of the selection-highlighting-within-a-Collection-View > trick demonstrated in the "IconCollection" (Apple-provided) sample project > (take an NSBox with a fill color and bind its transparent property to the > "selected" property of its associated NSCollectionViewItem). > > A day or so later I notice that my fade in/out animation is gone. Eventually > track this regression down to the change from NSView-subclass to > NSBox-subclass. > > Should I be surprised by this difference in behavior between NSView and > NSBox? I have been setting up my animation via: > > [self setWantsLayer:YES]; > [self setAnimations:[NSDictionary dictionaryWithObject:transition > forKey:@"subviews"]]; > > and then expecting animation to occur when executing this: > > [[self animator] replaceSubview:mThumbnailStandin with:mThumbnail]; > > perhaps there is some other way to install/provide my animation that NSBox > will respect? > > Any ideas? I realize there is the straightforward approach of staying with > an NSView sub-class and doing my own binding-friendly fill color. > > Thanks in advance. > > Mark Sanvitale > > _______________________________________________ > > 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/kenferry%40gmail.com > > This email sent to [email protected] > _______________________________________________ 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]
