After struggling to get
NSUndoManager to work correctly in a Swift-only app under OS X 10.11 El Capitan, I finally figured it out (and it works the same for iOS 9). The meat is in answer I posted to a StackOverflow question. Reposted below for completeness.
I encountered a question on StackOverflow today about how to add items to the favorites list in the Finder sidebar (which also appears in the standard Open and Save dialogs’ side bars). Though it’s already been answered before (I marked it as a duplicate, pointing to an answer from 2011), it appears the information is a bit outdated and contained no example code. I wrote, tested, and added the code to an updated answer. Not satisfied to stop there, I felt it would be easier to use if I created a simple category on
NSURL so you could tell a valid file URL directly to add itself to either the favorite items or favorite volumes list with one call. It’s compatible back to 10.5.
With the arrival of some neat new libraries I can’t talk about yet, I wanted a convenient way to ask a
UIFont instance if it was bold or italic*. Although there’s no direct route as there is with
NSFont on Mac OS, It turns out it’s relatively easy to add this functionality to
UIFont via an Objective-C category.
Conventional Cocoa wisdom holds that each window in an application should be in its own nib/xib file. The benefits are shorter launch times, better memory usage, and better Xcode project organization. Conventional wisdom is always right … right? We cynics know better. True wisdom is knowing when conventional wisdom is wrong.Continue reading
It’s been awhile since I’ve posted any new Cocoa stuff. Especially anything as widely loved as JLNDragEffectManager. Since I love all that positive attention and am sorely disappointed by the recent falloff of ego-sustaining limelight, I thought I’d solve yet another of the Cocoa world’s problems and give you a rather easy way of mimicking the “recessed list effect” found in Dictionary.app. I was reminded of the effect by this StackOverflow post today (thanks, Li Fumin, for reminding me I wanted to figure this out).Continue reading
Another quick Xcode debugging tip: If you experience “orange breakpoints” when debugging and have verified you’re in debug mode, and have cleaned and rebuilt your target to no avail, try disabling “Load Symbols Lazily” in Xcode’s Debugging preferences panel.