iOS 6 and Xcode 4.5 has a new feature referred to as "Unwind Segue": Unwind segues can allow transitioning
I have a tab bar application, with many views. Is there a way to know if a particular UIViewController is curr
Many classes in Cocoa/Cocoa Touch have the NS prefix. What does it mean?
I am attempting to send and receive messages through NSNotificationCenter in Objective-C. However, I haven&apo
I upgraded to Xcode 6 beta 4 and now my App continuously crashes with the message Unknown class X in Inter
Just started using Xcode 4.5 and I got this error in the console: Warning: Attempt to present < finishV
Starting in iOS7, there is additional space at the top of my UITableView's which have a style UITableView
How do I test if an NSString is empty in Objective-C?
I have an app that I developed with Xcode 3 and recently started editing with Xcode 4. In the target summary I
I am trying to upload an Apple TV App to the App Store for testing purposes, but I got the issue: This Action
The keyboard does not show up when I run the simulator and click in the UITextView. How do I re-enable the key
I am creating a free version of my iPhone game. I want to have a button inside the free version that takes peo
My application uses an UITextView. Now I want the UITextView to have a placeholder similar to the one you can
When I set up a table view with 4 rows, there are still extra separators lines (or extra blank cells) below th
I know how delegates work, and I know how I can use them. But how do I create them?
Is there a way to call a block with a primitive parameter after a delay, like using performSelector:withObject
I added a new nib file to my project, and tried to load it. However, when I click on the toolbar icon that is
I would like to have an app include a custom font for rendering text, load it, and then use it with standard U