Presenting a Mac dialog sheet with visual cue effects
Please note: this article is part of the older "Objective-C era" on Cocoa with Love. I don't keep these articles up-to-date; please be wary of broken code or potentially out-of-date information. Read "A new era for Cocoa with Love" for more. In this post, I'll show you how to use visual effects over a window to make a dialog sheet stand out when it is presented over the top. It's a pretty simple u
Background audio through an iOS movie player
Please note: this article is part of the older "Objective-C era" on Cocoa with Love. I don't keep these articles up-to-date; please be wary of broken code or potentially out-of-date information. Read "A new era for Cocoa with Love" for more. Background audio in iOS is supposed to be as simple as entering a setting in your Info.plist and making sure your kAudioSessionProperty_AudioCategory is appro
Easy custom UITableView drawing
Please note: this article is part of the older "Objective-C era" on Cocoa with Love. I don't keep these articles up-to-date; please be wary of broken code or potentially out-of-date information. Read "A new era for Cocoa with Love" for more. It is really easy to customize your UITableViews. I'll show you how to completely customize the appearance of UITableViews without overriding or subclassing a
Drawing gloss gradients in CoreGraphics
Please note: this article is part of the older "Objective-C era" on Cocoa with Love. I don't keep these articles up-to-date; please be wary of broken code or potentially out-of-date information. Read "A new era for Cocoa with Love" for more. This post presents a function &mdash DrawGlossGradient(CGContextRef context, NSColor *color, NSRect inRect) &mdash that will draw a "gloss" gradient in a sing
A ZoomingViewController to animate a UIView to fullscreen
Please note: this article is part of the older "Objective-C era" on Cocoa with Love. I don't keep these articles up-to-date; please be wary of broken code or potentially out-of-date information. Read "A new era for Cocoa with Love" for more. ZoomingViewController is a class you can attach to any existing view that will let you zoom the view to fullscreen with a single tap, rotate the view while in
The design of an iPhone application
Please note: this article is part of the older "Objective-C era" on Cocoa with Love. I don't keep these articles up-to-date; please be wary of broken code or potentially out-of-date information. Read "A new era for Cocoa with Love" for more. In this post, I'll discuss iPhone program design using the example of a small but non-trivial iPhone application to provide examples of how the design is impl
Base64 encoding options on the Mac and iPhone
Please note: this article is part of the older "Objective-C era" on Cocoa with Love. I don't keep these articles up-to-date; please be wary of broken code or potentially out-of-date information. Read "A new era for Cocoa with Love" for more. On Unix platforms, a common approach for Base64 encoding is to use libcrypto (the OpenSSL library). However, like most C libraries, you need to wrap it to int
Multiple row selection and editing in a UITableView
Please note: this article is part of the older "Objective-C era" on Cocoa with Love. I don't keep these articles up-to-date; please be wary of broken code or potentially out-of-date information. Read "A new era for Cocoa with Love" for more. By default, UITableView only supports single-row selection. In this post, I'll show you how to implement multi-row selection, similar to the message edit inte
Objective-C's niche: why it survives in a world of alternatives
Please note: this article is part of the older "Objective-C era" on Cocoa with Love. I don't keep these articles up-to-date; please be wary of broken code or potentially out-of-date information. Read "A new era for Cocoa with Love" for more. Objective-C remains an impediment for many programmers coming to the Mac or iPhone platforms — few programmers have ever experienced it before learning Cocoa,
Instance variable to synthesized property (an Xcode user script)
line to the implementation. This isn't very much work but it's still menial and boring stuff. Also, even though it's simple, it is one of the most commonly performed tasks in Objective-C 2.0 programming, since every class will likely have multiple properties that will need to be created and configured in a similar fashion. Instead of creating these two lines of code in the two different files, I w
Using libxml2 for XML parsing and XPath queries in Cocoa
Please note: this article is part of the older "Objective-C era" on Cocoa with Love. I don't keep these articles up-to-date; please be wary of broken code or potentially out-of-date information. Read "A new era for Cocoa with Love" for more. NSXMLDocument is the normal tree-based XML parser in Cocoa. But if you're writing for the iPhone, this class isn't available. Even on the Mac, sometimes you w
Drawing a custom window on Mac OS X
Please note: this article is part of the older "Objective-C era" on Cocoa with Love. I don't keep these articles up-to-date; please be wary of broken code or potentially out-of-date information. Read "A new era for Cocoa with Love" for more. Occasionally, you may want a window to look completely different to the standard window styles provided by Apple. This post will show you how to draw a custom
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