hoha questions

hoha answers

• How can I get the text from PDF page?
• singletons in cocoa, are they evil?
• Idiom for Initializing UINavigationItem
• Adding compile flags for multiple targets in XCode
• will NSFileSystemFileNumber in iOS always be unique?
• KVO: UITableViewCell observing model property - how to unregister when model deallocs?
• Where is my NSLog output?
• Objective-C sub-classing basics, how to add custom property;
• Is there a way to change Views in iOS without using UINavigationController?
• Ruby - how to handle problem of subclass accidentally overriding superclass's private fields?