• Install and configure the Apple developer tools and implement 3rd party tools and widgets to help speed development
• Understand and use Xcode
• Leverage the programming constructs of Objective-C including the data types, control logic, functions, and global/local/static variables
• Understand dynamic memory management including addresses, NULL, pass by reference (vs. by address), the heap, retain cycles, and weak references
• Implement object oriented programming principles in Objective-C program implementation including accessor methods, properties, overriding methods, and super
• Use messages including nesting message sends, multiple arguments, and sending messages to nil
• Use NSString, NSArray/NSMutableArray, NSSet/NSMutableSet, NSDictionary/NSMutableDictionary, NSString, NSData, NSError, NSNotificationCenter
• Leverage callbacks including helper objects, notifications, and understanding callbacks and object ownership
• Implement patterns including Model-View-Controller (MVC)
• Use a basic init method with accessors and init methods with arguments
• Understand properties including property attributes, mutability, lifetime specifiers, and non-object types
• Use blocks including defining, using, declaring block variables, assigning a block, passing in a block, typedef, return values, and memory management
• Understand bitwise operations including OR, AND, exclusive OR, left shift, right shift, and using enum to define bit masks
• Understand strings including char, char *, string literals, and conversion from/to NSString
• Troubleshoot Objective-C performance issues
• Identify and correct thread and memory management problems

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