While Developing Elsewhere

Just a quick note that a) I've been real busy with a business iPhone app development for a startup (subcontractor work) and b) started documenting one of my recently reactivated hobby projects at jomnius.tumblr.com.

The startup project is scheduled to be released for App Store review later today (!!!) and my part of the project should be done. Ready for next project, whatever and whenever that might be.

Hobby project on the other hand is an offline book catalog browser for LibraryThing website, truly a treasure trove for all book lovers. The app is work-in-progress and not released yet.

CoreData and NSCocoaErrorDomain Code 1570

Seems like iOS CoreData doesn't like non-existing values i.e. "nil".

Didn't realize at first that something was wrong, because a) I wasn't very familiar with Coredata, just inherited the code to be upgraded and b) I created my own caching on top of CoreData to compensate some issues with CoreData. Then found this error buried deep into console logs:

CoreData Error Domain=NSCocoaErrorDomain Code=1570 "The operation couldn’t be completed. (Cocoa error 1570.)

You do not have the required file permissions

We exchange project files over a shared git repo on remote server and somehow I just lost write access to some files:

Error cleaning build folder

You do not have the required file permissions

Server API change from HTTP to HTTPS

Doing an iOS client for business service, where client communicates with server to read and update certain undisclosured business data. Current development API is using HTTP with dummy test data, but real service will use HTTPS once everything has been validated to be safe and secure.

Client connectivity change from HTTP to HTTPS was done basically by adding (only) this code:

How to Remove Unused Parameter Warning - part 2

I still believe in no-warnings coding policy. Old problem, new solution.

Code warnings are often signs of real problems and have to be checked each and all. Many times you can rewrite the code in a better way, but sometimes that's not possible. For example generic protocol API offers method parameters, which are not needed in certain cases. You get the "Unused Parameter" warning.

What to do?

How to Create ZIP Archive with Password in Mac

Sending source codes over email, need to apply basic security measures. It's not a top secret project, software has already been released for another platform and the codes are basically just for a fully functional demo app.

No need to send a secret agent carrying encrypted SSD disk embedded inside his skull.

Font Changes in iOS 5.1 - AppleGothic

Apple iOS 5.1 was released late last evening (local time in Finland), as part of the "new iPad" announcement. Naturally I installed it right away and checked what FontType utility app tells me.

Apple has removed AppleGothic and added two Apple SD Gothic Neo fonts.

Update: I've been told these are Korean fonts, so I generated sample texts in Korean. I believe the text is supposed to mean "On this Day" or something like that.

Other iOS fonts are still same as in iOS 5.0.1 (see also: "New Fonts in iOS 5.0 - and Some Missing").

AppleGothic screenshots below: