Installing APP on the Iphone

http://developer.apple.com/iphone/library/documentation/Xcode/Conceptual/iphone_development/128-Managing_Devices/devices.html#//apple_ref/doc/uid/TP40007959-CH4-SW9

Objective C

Protocols - set of functions we need to implement if we need messages from the object?

Anonymous Object - id class loosely typed

Selectors - ?

What is the difference between ObjectiveC and Cocoa?

Object C is a language and Cocoa is Apples implementation of some classes in Objective C language.

Object hierarchy in Cocoa

NSObject is the promordial class.

It takes care of memory management

UIControl inherits from NSObject and it takes care of ?

All other UI classes inherit from UIControl.

Outlets - Target Actions

Controller objects have outlets that are pointers to instances of GUI Objects like slider and Button. These GUI Objects havd target actions as a method to the object referring to them.

Action/Invoke.

IDEA

ROI Application

Cocoa Touch Architecture

UI Kit

User Interface Elements

Application Runtime

Event Handling

Hardware APIs

Foundation

Utility Classes

Collection Classes

Object Wrappers for system services

Subset of Foundation in Cocoa