ARC is supported in Xcode 4.2 and later OS X v10.6 and later (64-bit applications) and for iOS 4 and later. Weak references are not supported in OS X v10.6 and iOS 4. There is no ARC support in Xco...

Grand Central Dispatch:   + Dispatch Queue: It’s an object which is a queue, and that queue contains n number of functions or blocks as their tasks. Library automatically creates different priori...

If your app is using iOS 5.0 and above then this is a very good link: http://adevelopingstory.com/blog/2012/05/the-ipad-split-keyboard-and-missing-notifications.html

If Base view controller is a View Controller then override this method - (BOOL)disablesAutomaticKeyboardDismissal {     return NO; } Be careful if you are displaying the modal with a UINavigatio...

The difference is that an object will be deallocated as soon as there are no strong pointers to it. Even if weak pointers point to it, once the last strong pointer is gone, the object will be deall...

Absolute Paths Absolute paths are very specific paths that include the domain name. The absolute path can often be pasted directly in the address bar to access the web element directly (often the s...

Hi All, Today i was looking for some eCommerce support for iPhone and Web both, and i have found a useful tool. + Magento: - It is an open source tool to create an online shopping portal. + Magen...

I have found some useful iOS libraries. Three20 : Framework developed by Facebook for their iPhone App. MBProgressHUD : To display a progress activity window. DSActivityView: To display a p...

Requirement: ——————— The prospect is trying to create an iOS app which will MIRROR the iPhone, iPad content using the pico projector and also be able to control the projector ( on the projector, in...

Hi All, I was exploring Xcode 4 features and i found some pretty stuff to share. Below is the list of Xcode features which may help you with writing Cocoa/Cocoa touch code. You can find the discuss...