From Apple Q&A QA1405, an easy way to call a method with variable parameters nil-terminated,
[NSMutableArray arrayWithObjects..., nil]
Continue reading [ObjectiveC] Variable arguments list
You want to remove the whitespaces at the end of the rows in your code?
Continue reading [Xcode] Trailing whitespaces
A simple way to show in your project a view that is ever modal (with opacity view on background), like the UIAlertView, in fact it is UIAlertView that we use, subclassing it!
Continue reading [Objective-C] Modal view in Navigation and TabBar controller projects
Using private Framework, in particular SoftwareUpdateServices.frameworkyou can distinguish between carrier network, in particular, if your connection is 3G or GPRS/EDGE, or WiFi.
Continue reading [Objective-C] Network type (WIFI, 3G, EDGE/GPRS)