—- Objective-C related —-
- identify basic OO concepts and the keywords Objective-C uses (interface, implementation, property, protocol, etc)
- what is a designated initializer, what is the pattern for the initializers and why ( if (self = [super ...] ) )
- basic memory management topics, like ownership retain/release/autorelease
- what happens if you add your just created object to a mutable array, and you release your object
- what happens if the array is released
- what happens if you remove the object from the array, and you try to use it
- trick: garbage collection on iPhone
- autorelease pool usage
- property declarations ( assign, nonatomic, readonly, retain, copy )
- trick: ask about the nonexistent atomic keyword, what does atomic mean
- ask on how to correctly implement a retaining setter property
- ask about the circular reference problem and delegates being usually saved with assign rather then retain
