The new Fall 2011 courses from Stanford on iTunes U are available! Courses by Paul Hegardy released with a Creative Commons BY-NC-ND license in full HD. 7 courses are available: MVC and Introduction to Objective-C My first iOS App Objective-C Views Protocols and Gestures Multiple MVCs and Segues iPad Apps
Debugging EXC_BAD_ACCESS
A helpful article explaining how to use gdb to debug EXC_BAD_ACCESS: EXC_BAD_ACCESS and no stack trace == more quality time lost in Xcode Also, if you don’t know about NSZombieEnabled you should read the following articles: What is NSZombieEnabled? How do I set NSZombieEnabled in Xcode 4?
iOS device and OS version
If you are interested in device class and OS version statistics, I’ve compiled a list of recent articles: iOS device and OS version stats from Instapaper 3.0 2011-03-24 is it worth supporting iOS 3 in 2011? 2011-03-20 What proportion of all iPhone owners use iOS 4.x today? 2011-01-18 61% of iPads already running iOS 4 …
Install DataMapper MySQL adapter on Mac OS X (10.6.6)
I’ve just installed MySQL 5 from mysql-5.5.9-osx10.6-x86_64.dmg package, see MySQL download website or mirrors. This package installs MySQL in /usr/local/mysql (symlink to mysql-5.5.9-osx10.6-x86_64). When I wanted to install DataMapper MySQL driver, I ran into the following error: $ sudo gem install dm-mysql-adapter –no-rdoc –no-ri Fetching: data_objects-0.10.3.gem (100%) Fetching: do_mysql-0.10.3.gem (100%) Building native extensions. This could take …
Editorial Calendar WordPress plugin
WordPress doesn’t make it easy to see when your posts are scheduled. That’s exactly what I was thinking! Browsing WordPress Plugin Directory, I found Editorial Calendar. This plugin shows you all your posts through a calendar view instead of the classic list view: You can also manage your posts, drag and drop between dates, etc… …
CSSMERR_TP_NOT_TRUSTED with Xcode
After switching to a new MacBook (and copying everything through Firewire cable), I couldn’t compile any app on my iPhone. Compilation was always ending up with the following message: /…/build/Debug-iphoneos/xxxxxx.app: CSSMERR_TP_NOT_TRUSTED Command /usr/bin/codesign failed with exit code 1 I checked my provisioning profiles, certificates and everything and couldn’t find a solution. Finally, while browsing the …
Xcode tips and tricks
Starting or not Mac OS X / iOS development, it’s worth reading articles to find tips that suits you. 10 Xcode power user tips for iPhone devs What are those little Xcode tips & tricks you wish you knew about 2 years ago? 14 Essential Xcode Tips, Tricks and Resources for iPhone Devs Killer Xcode …
Tint UIButton and UIBarButtonItem
Edit 2011-11-04 Since iOS 5.0, UIButton and UIBarButtonItem have a tintColor property. You may have noticed that the tint property is not available for UIButton and UIBarButtonItem. Two common techniques to change the color, you can find around are drawing button with CoreGraphic or using a stretchable UIImage. Lately, I found a new technique based on …
29.7%
According to this report, 29.7 percent of U.S. mobile subscribers now own smartphones that run full operating systems. Apple and RIM devices are the most popular.