NSScreencast Episode #38 Class Introspection

Class Introspection - NSScreencast

• resignFirstResponder
• Class class =
• [self inspectClass:class]
  • add @property methods
  • self.methods = [self methodsInClass:class]

• import 'objc/runtime.h'

• SEL selector = method_getname(method)
  • NSStringFromSelector
  • [methodNames addObject:name]
• Show method names on table view
• NSArray ivars
  • ivarsInClass:class
    • class_copyIvarList(class, &ivarCount)
  • const char ivarNameStr = ivar_getname(ivar)
    • NSString stringWithCString encoding
• numberOfRowsInSection
• numberOfSectionsInTableView
  • switch (indexPath.section)
• titleForHeaderInSection

iOS Recipes