1. 3-Jul-15 Chapter 2 iPhone App Store and App Business Issues

2. 1. iPhone Application Development Tool Xcode : free downloadable. Xcode is an Integrated Development Environment (IDE) containing a suite of software development tools developed by Apple for developing software for OS X and iOS. First released in 2003, the latest stable release is version 4.4.1 and is available via the Mac App Store free of charge for Mac OS X Lion and OS X Mountain Lion users.Integrated Development Environment software developmentAppleOS XiOS Mac App StoreMac OS X LionOS X Mountain Lion

3. 2. iPhone Developer Program: Setting up your profile for Testing and Submitting Apps 1. Setting up your iPhone development team https://developer.apple.com/ Team Agent: has all primary responsibilities for the account. 2. Getting an iPhone Development Certificate 3. Register Devices for Testing 4. Creating App IDs 5. Create a Provisioning Profile 6. Using the Provisioning Profile to Install an App on an iPhone, iPad, or iPod Touch 7. Submitting Your App for Distribution

4. Model-View-Controller Design Pattern *.h file: declare variables, define class #import int count;// global variable @interface ViewController : UIViewController { IBOutlet UILabel *number;// variable } - (IBAction)add;// method declaration - (IBAction)subtract; - (IBAction)reset; - (IBAction)dbl; - (IBAction)opposite; @end Superclass Subclass Method name Return type - : instance method +: static method Key word

5. Model-View-Controller Design Pattern *.m file: implementation of class @implementation ViewController - (IBAction)add { count++; number.text = [NSString stringWithFormat:@"%i", count]; } … @end Key word NSString object “string” : C-style string

6. NSString Class Reference https://developer.apple.com/library/mac/#documentation/Cocoa/Refer ence/Foundation/Classes/NSString_Class/Reference/NSString.html The NSString class declares the programmatic interface for an object that manages immutable strings. An immutable string is a text string that is defined when it is created and subsequently cannot be changed. NSString is implemented to represent an array of Unicode characters, in other words, a text string. NSString class contains 146 methods. stringWithFormat: Returns a string created by using a given format string as a template into which the remaining argument values are substituted. + (id)stringWithFormat:(NSString *)format,...

7. UILabel Class Reference The UILabel class implements a read-only text view. You can use this class to draw one or multiple lines of static text, such as those you might use to identify other parts of your user interface. See below for detail: https://developer.apple.com/library/ios/#documentation/UIKit/Ref erence/UILabel_Class/Reference/UILabel.html