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iOS5 Feature List 20 Aug 2011 | 08:58 pm
iOS 5 will support the iPhone 3GS and 4, the third- and fourth-generation iPod touch, and all iPads. I’m listing features that are listed in WWDC coverage. Notification appear in smaller animated bar...
TinyUmbrella – Restore device iOS version 20 Aug 2011 | 08:26 pm
Apple warns that you can’t restore back to previous iOS version if you upgrade to iOS 5 on your developer device. Why? Apple only allows you to restore to the firmwares they ‘sign’. This ‘signing’ onl...
Xcode 4.0 Error: Apple Match-O Linker(Id) Error “…”, referenced from: 8 Apr 2011 | 12:09 pm
Upgrading to Xcode 4.0 from Xcode 3.0 requires some work. This is a very common error. The fix is simple but it takes a while to identify the source. Errors: Apple Match-O Linker(Id) Error “…”, refe...
Xcode 4.0 Error: No architectures to compile for – Facebook iOS SDK 8 Apr 2011 | 11:01 am
Upgrading Xcode projects from Xcode 3.x to Xcode 4.0 are not that simple. It does involve a lot of “detective” work like solving murder mystery. In this case it happens on Facebook iOS SDK sample pro...
Xcode 4.0 Error: Apple Match-O Linker(Id) Error “…”, referenced from: 8 Apr 2011 | 08:09 am
Upgrading to Xcode 4.0 from Xcode 3.0 requires some work. This is a very common error. The fix is simple but it takes a while to identify the source. Errors: Apple Match-O Linker(Id) Error “…”, refere...
Don’t use setAlternateColor: on UISwitch 3 Mar 2011 | 10:49 pm
According to Apple documentation, it is recommended not to change UISwitch. By default UISwitch shows a blue button with “ON” label and white button with “OFF” label. API won’t allow you to change th...
Disable & Enable Idle Timer in iOS SDK 3 Mar 2011 | 03:47 am
By default, the idle timer will dim the screen after a period of non use and then turn the power to the screen off. You may need to disable idle timer on a specific app such as a Flash light app or lo...
Debugging using printf() in Xcode Console 3 Mar 2011 | 02:20 am
You can use printf() function inside .m file to indicate the app status such as application starts and ends. In Xcode, select AppDelegate.m file, insert a line inside applicationDidFinishLaunching: m...
UIDevice Properties 2 Mar 2011 | 04:08 pm
Currently these are the most popular common UIDevice properties. It shows the device name, device identifier, device model, device system name, and device system version. You can print these properti...
Constant in Objective-C 2 Mar 2011 | 03:57 pm
This is a very tricky task to handle constants in Objective-C. The most suggested approach is to define global, public or private constants. This will work only if you don’t expect to put the same con...
