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Radar: Monitoring CLRegion immediately after removing one fails
This gotcha became apparent to me while putting together the sample app for the seventh and last chapter of my book. There I am monitoring for the 10 regions from a plist which are closest to the user....
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Radar: Ranging of iBeacons might fail if beacon is emitted on same device
This problem was encountered by me while research for chapter 7 of my book. Apparently other developers have encountered it as well as you can see from several questions on Stack Overflow: iOS 7...
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Book: Feature Complete
On the last working day of May, I handed in the 7th and final chapter of my book. This chapter on Geofencing and iBeacons rounds off the offering of all technologies in iOS you need to know to build...
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DTFoundation 1.7.0
This release of DTFoundation contains fixes for the most part, but also one new class DTProgressHUD. Also it is the first released via the new CocoaPods Trunk mechanism. This is why it gets a minor...
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DTCoreText 1.6.12
It’s been a while since the previous update to DTCoreText. Now that I mostly finished my book I pulled together a new maintenance release. Changes FIXED: Crash parsing background shorthand containing...
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Should I switch to Swift?
Angelina asks: I was very surprised when I heard about Swift. I was curious what your thoughts are about Swift and phasing out Objective-C specifically since you are in the process of writing the...
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For Hire
Over the last 8 months I worked almost exclusively on my book on Barcodes with iOS 7. That meant that during this time I could not take on any new projects. That has changed now, that my book is...
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E-Mail Validation
For the ProductLayer sign-up form I wanted to make sure that the user can only send a sign up if the email address is valid. If you google for ways to validate an email address you most often solutions...
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Open Letter to Long Lost Contacts
I extracted all E-Mail addresses from my archive, dating back almost 6 years. From the resulting 7303 I filtered all that didn’t seem to address individual people. That left 5466. For a while I...
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Object Overlay on Video
We always welcome guest bloggers on Cocoanetics.com. This edition was prepared by Tejas Jasani and covers how to overlay objects on live video using Brad Larson’s GPUImage project. The main objective...
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Understanding OAuth 1.0a
Chapter 6 in my book deals with how to build a solid wrapper around a RESTful web service and how to unit-test it. I thought I had finished principal writing on my book when I handed in chapter 7, soon...
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DTFoundation 1.7.1
This minimalistic update to DTFoundation adds a helper method for loading small animated GIFs. It’s a hotfix release because no other functionality was modified. Changes ADDED: DTAnimatedGIF in...
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DTCoreText 1.6.13
This hot fix release for DTCoreText contains a pressing crashing bug related to changed behavior in iOS 8. It also adds support for animated GIFs. Plus a few other annoyances. Changes FIXED:...
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DTRichTextEditor 1.6.7
This maintenance release for DTRichTextEditor brings together various fixes from recent DTCoreText and DTFoundation updates and adds support for tint color. Changes ADDED: Support for tintColor on...
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Barcodes Book complete on MEAP
After I had handed in the seventh and final chapter of my Barcodes book, Manning is now also making this available on the Manning Early Access Program (MEAP). This makes the complete book content...
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Siri: Support “Countdown” synonymously with “Timer” in German
This has been bothering me ever since I switched my Siri to German. Now, finally, I radar’d it as rdar://17722963 and on Open Radar. Maybe then it finally has a chance to be fixed, eventually. Summary...
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Square-Cropping Images
Christian asks: How would you – most elegantly – crop out the center square of an image, preserving the aspect ratio and output the image with a given size? That’s a good question. There is a “classic”...
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DTFoundation 1.7.2
This maintenance update for DTFoundation fixes a slew of warnings that appear building for iOS 8 only or with Xcode 6. Changes FIXED: [DTAlertView] Completion blocks for the buttons are not executed on...
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Development Pods
When integrating your own CocoaPods into your apps you often find some things you’d like to tweak in your component from within the app project/workspace. This would allow you to immediately test the...
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DTDownload 1.1.1
This maintenance update for DTDownload fixes a dependency clash with DTFoundation and contains several minor fixes. Changes FIXED: arm64 Warnings FIXED: DTDownload.h could not found building via...
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