Xcode 26.4 silently broke Interface Builder for Objective-C projects. Xcode 26 crashes with EXC_BAD_ACCESS the moment you launch onto an iOS 27 beta device. Xcode 27’s new Coding Assistant opens conversations in a floating window instead of next to your code. And nobody’s Mac can delete the 9–85 GB of orphaned simulator runtime sitting under…
Future-Proof Your Data Persistence
The data persistence stack that is an appropriate decision today may not be an optimal solution when your app has grown. You would need to design your app to withstand the test of time and be extensible for as it grows. Read more to learn how.
Which Database to Use for My iOS App?
Choosing a database to use for your iOS app is no simple feat. But what if you have the tools to make an informed decision for your app? What if you can decide for today and design for tomorrow?
State Restoration Hiccups with Swift
Programming Cocoa apps with Swift has it’s many caveats. Many of these are derived from the fact that there are two language runtimes at play, the incumbent Objective-C runtime which is used by system frameworks and the Swift runtime as a newcomer. Here is one hard lesson learned (and workaround) when dealing with state restoration problems in a Swift app.
A Swift Promise
Futures/promises are great to coordinate persistence and views to ensure responsiveness in today’s native apps. However bringing thousands of lines of foreign code just to have this small functionality may not be cool. Here’s a hundred-line implementation of futures/promises in Swift 3.1
Touch Bar Design Tips
It’s high time you update your macOS app to support the Touch Bar. You’ll need to have some strategy on how to design your Touch Bar interface – don’t just pour any buttons into it. Here’s some tips on how to work this new hardware.
Introducing the Core Data Controller
Here is a document class replacement for managing your library-style app based on Core Data. All the goodness of NSDocument / UIDocument with just the right functionalities when you don’t need to expose document-management functionality to your users.
Programmatically Sending Rich Text e-mail with Attachments on the Mac
If your users needs a precomposed e-mail with attachments, now you can easily do it on the Mac with a few lines of code
Tips for Architecting Dual-platform OS X / iOS Applications
How to share common code between OS X and iOS and architect your app to dance around each platform’s similarities and differences.
Encoding UIButton Title for State Preservation and Restoration
Supporting state restoration in iOS often requires you to make your app just like a hollywood house where the front porch looks nice but there’s really nothing beyond that. Read more to find out why.
Bringing Web Analytics for your Desktop App
Are you yearning for Flurry Analytics or Google Mobile Analytics for your Mac OS X application? Seek no more as your day is saved!
Handling Cookies Created in JavaScript for your Custom Cookie Jar
Yammer just broke my app because they started using JavaScript to set their session cookies. I spent a couple of days finding why the app broke and coding up the solution to this. Here’s how you take care of those pesky script-based cookies.
Crazy App Idea: JDBC on Cocoa
Do you know why it’s so hard to gain access to an SQL database from a Mac App? Here’s why and the solution to your database access woes. Warning: it’s slightly off-beat and rad.
Crash-proof your Cocoa-app when consuming JSON!
Is your Cocoa app plagued by “unrecognized selector sent to instance” exceptions when consuming JSON data? Is your app not resilient to minor server-side JSON API changes? Here’s how to fix your JSON woes in your Objective-C project.