Coming back to the ultimate purpose of this blog… helping my memory! Here is a code snippet to copy an

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A short and simple recipe for getting an NSDate from an NSString using NSDateFormatter — the question behind it (“how

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Rebuilding the Icon Cache Database (Vista / 7) When desktop or Explorer icons go blank, generic, or flat-out wrong, the

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Here’s a quick way to separate iPhone 4 / iPhone 3 code paths — back when “retina display” was the

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Since the iPhone 4 introduced the Retina display in 2010, app icons stopped being a single 57×57 PNG. Every device

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In August 2010, Chrome was five years old and still the plucky outsider — and I wrote this piece to

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Updated September 2026 — a 2010 jailbreak-era tutorial, kept as a period piece together with the security story it belongs

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Updated September 2026: the 2010 NSFileManager recipe below still describes the right idea, but Swift and modern UIKit give you

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Weird bug, easy solution. I ran into this when updating to SDK 4.0: CLLocationManager simply would not work on the

Continue readingCLLocationManager delegate method is not called in iOS4

This was one of my most-used cheat sheets when I was doing heavy Objective-C work: a grab-bag of small NSString

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