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Linguan 1.1

May 29, 2012

Linguan 1.1 brings the long-awaited support for localizing XIB files. While it has proven a boon for iOS developers where you generally can easily set the UI strings from code, Mac developers where left in the rain because there you typically have way more strings in the XIB files making it impractical to localize everything in code.

For the immediate first version we are remote-controlling ibtool which needs to be installed with the Xcode Commanline Tools and the path properly set up.

sudo /usr/bin/xcode-select /Applications/Xcode.app/Contents/Developer

… or wherever your Xcode.app is installed.

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DTCoreText: Custom List Prefixes

May 28, 2012

A while ago Austrian development company Antiloop approached me. They needed to have custom list prefixes in DTCoreText as the default bullets didn’t cut it for their purpose. They had sponsored new features for DTCoreText in the past, a shining example of a company that is willing to invest in the Open Source technologies they use.

There is no provision in CSS to achieve this directly, but a well known workaround exists using the li:before pseudo-selector together with a content attribute and list-style:none. This omits the list prefix, but substitutes the contents of content.

To get the unicode double chevrons right (U+00BB) you would specify this style:

ul {list-style-type:none;}
li:before {content:"\00bb ";}

Note the use of the non-standard -webkit-padding-start which specifies the left padding for lists in Safari. The content attribute apparently is containing unicode sequences with a single back slash.

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Radar: NSFetchedResultsController does not get refreshed for added relationship

May 26, 2012

This was quite a head-scratcher for me today. So I documented it as a Radar (rdar://11541277) because it just feels wrong to me. If there are reasons for this behavior I was unable to find them documented.

Please let me know via Twitter or in the comments if you have a good reason for this or know of any documentation related to this.

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iWoman 2.0.7

May 24, 2012

This is yet another maintenance release aiming to fix some time zone problems users were having.

Changes

  • Fixed a bug that could lead to an incorrect cycle date showing on the wheel view
  • Changed: No both the Wheel View and the Calendar View go to Today when resuming from background

The first hopefully is the last bug fix related to the time zones. Internally all dates are now absolute. That means they won’t change if you travel to somewhere that has a different time zone than where you are usual at.

The second item was much requested because it would save the user from having to tap the Today button upon returning to the app from background.

Update June 1st: the update was approved and is now on the app store.

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Twitter.framework Tutorial

May 20, 2012

I have this idea for an app that I would totally use myself. You know I started XcodeJobs.com and the @XcodeJobs twitter feed to go with it to have a channel to retweet all the iOS-related job offerings that flow before my very eyes. For the site I’ve been talking to people to create a login for themselves and post their jobs self-servingly. For the twitter feed I’ve been using the Twitter search features with a variety of search terms to find tweets where company owners of the developers themselves are tweeting about job postings.

Now the reality of the matter is that most of all Tweets are from recruiters, agencies, job sites and other kinds of services that a self-respecting iOS developer does not want anything to do with. So right now I’m manually filtering tweets. There are a variety of criteria that I want to be able to combine to end up at the real good retweet-worthy tweets.

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Weird ARC error And The Invisible Header

May 07, 2012

There’s a bug – it seems – in Xcode 4.3.2 that was causing an issue with my DTBannerManager component. I’m documenting the workaround here and how to recognize that you are experiencing the bug.

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Podcast #36 – “Google Currents”

May 06, 2012

Episode 36, recorded Sunday May 6th, 2012

In this episode my special guest is Will Kiefer. He is the Senior iOS Engineer in charge of Google Currents. Will tells us why UIWebView isn’t all that bad and has some amazing performance tips for us with which to tame it. You should make lots of notes and you will feel like you visited a lab at WWDC and had your brain supercharged.

Podcast: Download (61.5MB)

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GCD, ARC, Blocks – Oh How Simple!

May 05, 2012

I’m “totally” migrating my iCatalog framework project to ARC, GCD and blocks and I’d like to share with you some of the revelations that the use of these modern technologies brings with them.

Here are two examples of the kind of simplifications you will see if you do the same. This approach is compatible with iOS 4.0 and above.

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Resource Bundles

May 01, 2012

When shrink-wrapping your code for later reuse you inadvertenly will come into the situation that you have some resources (strings, XIBs, images et al) in your project that you also want to be reused. So what do you do?

If only we had frameworks on iOS … then we could bundle the resources together with the code in a framework. But Apple does not want us to compile frameworks in Xcode since these could potentially contain code downloaded after the app review process.

Popular projects like ShareKit or the Facebook iOS SDK have approached this dilemma by simply putting all resources into a folder, giving it the “.bundle” extension and instruct users of their SDK to also add this bundle to the “Copy Bundle Resources” step of their respective apps.

In this here blog post I will show you a smarter way.

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Podcast #35 – “TapCaps”

Apr 28, 2012

Episode 35, recorded Saturday, 28th of April 2012. “TapCaps”

Alice Ning discusses the ins and outs of having a Kickstarter campaign for physical products versus software, we learn a bit about the magic behind capacitive touch screens and we learn what goes on behind the scenes of the TapCaps Kickstarter campaign.

Podcast: Download (46.4MB)

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