Posts written by Adam Preble

Jan 31 2013

Cocoa UI Preservation Y’all

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Mac OS X Lion introduced sudden termination, an opt-in feature for Cocoa apps that allows the system to terminate apps that aren’t in use and transparently re-launch them when the user brings them back to the foreground. This allows the system to keep resource usage as low as possible, but it also puts an additional burden on the developer to ensure that when the application is re-launched, it looks just like it did when the user last saw it.…

Nov 29 2012

An Objective-C Literal Subtlety

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Update: In the time since this blog post was published, the compiler behavior demonstrated has been remedied in the version of clang accompanying Xcode 4.6. For a BOOL generateMipmaps, @(generateMipmaps) now evaluates to kCFBooleanTrue or kCFBooleanFalse.

Earlier this year, Apple introduced new syntax for Objective-C literals—perhaps you read Mark’s early coverage of it here on the blog (Part 1, Part 2).…