xuzhe questions

xuzhe answers

• Create CATransition for UIView from current state
• CALayer: add a border only at one side
• Coredata delete rule confusion, xcode
• Get user current location on MKMapView
• UITextView shouldChangeTextInRange delegate not called
• Add an image (or other resources) to a Mac or iOS Framework
• Appearance API - UIBarButtonItem - MPMoviePlayerViewController and Youtube Webview
• When do I need to worry about thread-safety in an iOS application?
• UIImageView "squashed" after CGAffineTransformMakeRotation
• Is there a way to know if a UIViewController has been presented and dismissed modally ?