Avi questions

Avi answers

• Pass extra argument for UItapgestureRecognizer with selector
• Objective-C why need __NSGlobalBlock__
• Open safari view controller from table view on iOS 9 and open in safari on iOS 8 or 7
• MagicalRecord not returning NSDictionary in fetch request
• What does this %1$@%2$d format specifier means in objective c
• super init constructor in Swift
• Why weak IBOutlet NSLayoutConstraint turns to nil when I make it inactive?
• Why NSNumber *a = 0 do not display error
• Cannot pass object with interface type 'NSString' by value to variadic function; expected type from format string was 'id'
• Custom NSUncaughtExceptionHandler call previous exception handler