Tag Archives: howto

Logging with CocoaLumberjack and TestFlight

Consider the following situation that happens far too often in mobile app development: You’ve just released an app that works perfectly for you, and you’ve tested it extensively. You’re proud of your accomplishments and submit the app to the world, only to have several emails sent to you from users who have nothing but difficulties […]

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Docset Viewer v1.2 and how to customize iCloud backups

I’ve recently released version 1.2 of Docset Viewer, which fixes a number of bugs people experienced with the previous version. If you had problems with the previous release, please give this one a try. One of the improvements I’ve added is the ability to customize whether or not you would like to back up your […]

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Docset Viewer: Resuming large downloads with NSURLConnection

As I’ve shown in my previous post announcing Docset Viewer, I want this series of posts to be more than me talking about my new app. In keeping with the instructional nature of my site, I’m going to show you a few things that I did in my new app Docset Viewer and how I […]

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Using GCD and Blocks Effectively

With iOS 4.0 Apple introduced two new technologies to the iOS platform: Grand Central Dispatch, and blocks.  Simply put, it is to multi-threaded programming what fire is to a barbecue.  Sure you can do without it, but the end result is much better. Despite all this, developers still seem to avoid using it. Some of […]

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Smarter and More Reusable Core Data

Like most developers, I look to Apple’s default application templates to get up-to-speed on what would appear as being the Right Way™ of developing apps on iOS. In practice however what you need to realize is Apple’s templates are meant to be the easiest introduction to a set of tools that can be fairly complicated […]

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Building iOS apps for Over-The-Air AdHoc distribution

I’ve written about building iOS applications with Hudson Jenkins, but until recently there hasn’t been a convenient way of getting those applications to your testers. Of course the most important part of your build output will be the app bundle you send to Apple’s iTunes Connect web interface, but throughout your development cycle you’ll want […]

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Animating Interfaces with Core Animation: Part 4

This is the fourth in a series of posts I’m writing on animating iOS interfaces using Core Animation. In the first post I created a planetary orbit demo using nested CALayer objects. The second post showed how to dress up a UI by animating an image. The third post shows how you can trigger animations […]

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Animating Interfaces with Core Animation: Part 3

This is the third in a series of posts I’m writing on animating iOS interfaces using Core Animation. In the first post I created a planetary orbit demo using nested CALayer objects. The second post showed how to dress up a UI by animating an image. This time I’ll show how you can trigger animations […]

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Animating Interfaces with Core Animation: Part 2

This is the second in a series of posts I’m writing on animating iOS interfaces using Core Animation. In the previous post I created a planetary orbit demo using nested CALayer objects. This time I’m going to show how you can dress up a UI by creating a simple effect using an image and Core […]

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Animating Interfaces with Core Animation: Part 1

One of the greatest things about the iOS platform and applications people see on it is its beauty. Smooth gradients, consistent transitions, and animations that illustrate the transition of UI elements from one state to another. Animations are more than flashy eye-candy; they tell the user what’s happening. If an element is being deleted, instead […]

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