From Silicon Valley Code Camp 2009. An introduction to developing mobile applications for the iPhone and Android platforms.

1. Mobile Development 101: Developing
Apps for the iPhone and the Android
Platforms
Michael Galpin, eBay
@michaelg

2. Why Mobile?

3. Mobile Transactions
30.0
22.5
$M
15.0
7.5
0
Jan 1, 2008 May 1, 2008 Aug 1, 2008 Oct 1, 2008 Dec 1, 2008 Feb 1, 2009 Apr 1, 2009 Jun 1, 2009
Mobile Web iPhone

5. Usage
Capabilities

6. Usage
Capabilities
Phones That Matter
Distribution Barriers

7. What Platforms?

9. iPhone
50% of Mobile Internet Usage
Comprehensive Tools
High Volume Distribution Channel

10. Overview
• Programming Language: Objective-C
• Tools: XCode/Interface Builder, iPhone SDK
• Framework: Cocoa Touch
• Features: Multi-threaded, Open GL ES, Contacts, Email,
WebKit, iTunes, GPS, Google Maps, (Video)Camera, Local
Database, Push Notifications
• Pitfalls: Memory management, no background processing,
no intra-application communication*, QA, App Store
regulations

11. Objective-C
• Derived and compatible with C
• C libraries in many cases
• Object-oriented
• Smalltalk inspired
• Surprisingly dynamic

12. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

13. interface(header)
@interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

14. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

15. inheritance
@interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

16. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

17. protocol
@interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

18. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

19. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
instance variable
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

20. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

21. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
method declarations
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

22. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

23. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
property
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

24. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

25. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
class/static method
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

26. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

27. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
input parameter
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

28. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

29. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
return type
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

30. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

31. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
method name
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

32. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

33. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
instance method
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

34. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

35. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
1st param
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

36. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

37. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
2nd param
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

38. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

39. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
3rd param
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

40. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

41. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
method name
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

42. @interface CurrencyAmount : NSObject <NSCoding>
{
NSDecimalNumber *amount;
NSString *currencyID;
}
@property (nonatomic, retain) NSDecimalNumber *amount;
@property (nonatomic, retain) NSString *currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID;
- (id) initWithNode:(XMLNode *) node;
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID locale:(NSLocale *) locale;
- (id) initWithLocalizedStringAmount:(NSString *) inAmount currencyID:(NSString *) inCurrencyID;
- (id) initWithDecimalAmount:(NSDecimalNumber *) inAmount currencyID:(NSString *) inCurrencyID;
- (CurrencyAmount *) currencyAmountByMultiplyingByQuantity:(int) inQuantity;
- (CurrencyAmount *) currencyAmountByAdding:(CurrencyAmount *) inAmount;
-(NSString*) stringValue;
-(NSString*) rawDecimalAsString;
-(NSString*) formatStringWithoutCurrency;
-(NSString*) formatStringShort:(BOOL) shortForm;
-(NSString*) currencyPrefixShort:(BOOL) shortForm;
- (NSComparisonResult)compare:(CurrencyAmount *)other;
- (BOOL) isZeroAmount;
@end

43. @implementation CurrencyAmount
@synthesize amount;
@synthesize currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID
{
return [[[CurrencyAmount alloc] initWithDoubleAmount:0.0 currencyID:inCurrencyID] autorelease];
}
- (id) initWithNode:(XMLNode *) node
{
NSString *inCurrencyID = [node attributeValue:@"currencyID"];
[self initWithStringAmount:[node getText] currencyID:inCurrencyID];
return self;
}
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID
{
amount = [[NSDecimalNumber alloc] initWithDouble:inAmount];
self.currencyID = inCurrencyID;
return self;
}
- (BOOL) isZeroAmount
{
return [amount compare:[NSDecimalNumber zero]] == NSOrderedSame;
}
- (void) dealloc
{
[amount release];
[currencyID release];
[super dealloc];
}
@end

44. @implementation CurrencyAmount implementation of interface
@synthesize amount;
@synthesize currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID
{
return [[[CurrencyAmount alloc] initWithDoubleAmount:0.0 currencyID:inCurrencyID] autorelease];
}
- (id) initWithNode:(XMLNode *) node
{
NSString *inCurrencyID = [node attributeValue:@"currencyID"];
[self initWithStringAmount:[node getText] currencyID:inCurrencyID];
return self;
}
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID
{
amount = [[NSDecimalNumber alloc] initWithDouble:inAmount];
self.currencyID = inCurrencyID;
return self;
}
- (BOOL) isZeroAmount
{
return [amount compare:[NSDecimalNumber zero]] == NSOrderedSame;
}
- (void) dealloc
{
[amount release];
[currencyID release];
[super dealloc];
}
@end

45. @implementation CurrencyAmount
@synthesize amount;
@synthesize currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID
{
return [[[CurrencyAmount alloc] initWithDoubleAmount:0.0 currencyID:inCurrencyID] autorelease];
}
- (id) initWithNode:(XMLNode *) node
{
NSString *inCurrencyID = [node attributeValue:@"currencyID"];
[self initWithStringAmount:[node getText] currencyID:inCurrencyID];
return self;
}
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID
{
amount = [[NSDecimalNumber alloc] initWithDouble:inAmount];
self.currencyID = inCurrencyID;
return self;
}
- (BOOL) isZeroAmount
{
return [amount compare:[NSDecimalNumber zero]] == NSOrderedSame;
}
- (void) dealloc
{
[amount release];
[currencyID release];
[super dealloc];
}
@end

46. @implementation CurrencyAmount
@synthesize amount; macro getter/setter
@synthesize currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID
{
return [[[CurrencyAmount alloc] initWithDoubleAmount:0.0 currencyID:inCurrencyID] autorelease];
}
- (id) initWithNode:(XMLNode *) node
{
NSString *inCurrencyID = [node attributeValue:@"currencyID"];
[self initWithStringAmount:[node getText] currencyID:inCurrencyID];
return self;
}
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID
{
amount = [[NSDecimalNumber alloc] initWithDouble:inAmount];
self.currencyID = inCurrencyID;
return self;
}
- (BOOL) isZeroAmount
{
return [amount compare:[NSDecimalNumber zero]] == NSOrderedSame;
}
- (void) dealloc
{
[amount release];
[currencyID release];
[super dealloc];
}
@end

47. @implementation CurrencyAmount
@synthesize amount;
@synthesize currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID
{
return [[[CurrencyAmount alloc] initWithDoubleAmount:0.0 currencyID:inCurrencyID] autorelease];
}
- (id) initWithNode:(XMLNode *) node
{
NSString *inCurrencyID = [node attributeValue:@"currencyID"];
[self initWithStringAmount:[node getText] currencyID:inCurrencyID];
return self;
}
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID
{
amount = [[NSDecimalNumber alloc] initWithDouble:inAmount];
self.currencyID = inCurrencyID;
return self;
}
- (BOOL) isZeroAmount
{
return [amount compare:[NSDecimalNumber zero]] == NSOrderedSame;
}
- (void) dealloc
{
[amount release];
[currencyID release];
[super dealloc];
}
@end

48. @implementation CurrencyAmount
@synthesize amount;
@synthesize currencyID;
method implementations
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID
{
return [[[CurrencyAmount alloc] initWithDoubleAmount:0.0 currencyID:inCurrencyID] autorelease];
}
- (id) initWithNode:(XMLNode *) node
{
NSString *inCurrencyID = [node attributeValue:@"currencyID"];
[self initWithStringAmount:[node getText] currencyID:inCurrencyID];
return self;
}
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID
{
amount = [[NSDecimalNumber alloc] initWithDouble:inAmount];
self.currencyID = inCurrencyID;
return self;
}
- (BOOL) isZeroAmount
{
return [amount compare:[NSDecimalNumber zero]] == NSOrderedSame;
}
- (void) dealloc
{
[amount release];
[currencyID release];
[super dealloc];
}
@end

49. @implementation CurrencyAmount
@synthesize amount;
@synthesize currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID
{
return [[[CurrencyAmount alloc] initWithDoubleAmount:0.0 currencyID:inCurrencyID] autorelease];
}
- (id) initWithNode:(XMLNode *) node
{
NSString *inCurrencyID = [node attributeValue:@"currencyID"];
[self initWithStringAmount:[node getText] currencyID:inCurrencyID];
return self;
}
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID
{
amount = [[NSDecimalNumber alloc] initWithDouble:inAmount];
self.currencyID = inCurrencyID;
return self;
}
- (BOOL) isZeroAmount
{
return [amount compare:[NSDecimalNumber zero]] == NSOrderedSame;
}
- (void) dealloc
{
[amount release];
[currencyID release];
[super dealloc];
}
@end

50. @implementation CurrencyAmount
@synthesize amount;
@synthesize currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID
{
return [[[CurrencyAmount alloc] initWithDoubleAmount:0.0 currencyID:inCurrencyID] autorelease];
}
method invocation
- (id) initWithNode:(XMLNode *) node
{
NSString *inCurrencyID = [node attributeValue:@"currencyID"];
[self initWithStringAmount:[node getText] currencyID:inCurrencyID];
return self;
}
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID
{
amount = [[NSDecimalNumber alloc] initWithDouble:inAmount];
self.currencyID = inCurrencyID;
return self;
}
- (BOOL) isZeroAmount
{
return [amount compare:[NSDecimalNumber zero]] == NSOrderedSame;
}
- (void) dealloc
{
[amount release];
[currencyID release];
[super dealloc];
}
@end

51. @implementation CurrencyAmount
@synthesize amount;
@synthesize currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID
{
return [[[CurrencyAmount alloc] initWithDoubleAmount:0.0 currencyID:inCurrencyID] autorelease];
}
- (id) initWithNode:(XMLNode *) node
{
NSString *inCurrencyID = [node attributeValue:@"currencyID"];
[self initWithStringAmount:[node getText] currencyID:inCurrencyID];
return self;
}
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID
{
amount = [[NSDecimalNumber alloc] initWithDouble:inAmount];
self.currencyID = inCurrencyID;
return self;
}
- (BOOL) isZeroAmount
{
return [amount compare:[NSDecimalNumber zero]] == NSOrderedSame;
}
- (void) dealloc
{
[amount release];
[currencyID release];
[super dealloc];
}
@end

52. @implementation CurrencyAmount
@synthesize amount;
@synthesize currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID
{
return [[[CurrencyAmount alloc] initWithDoubleAmount:0.0 currencyID:inCurrencyID] autorelease];
}
- (id) initWithNode:(XMLNode *) node
{
NSString *inCurrencyID = [node attributeValue:@"currencyID"];string literal
[self initWithStringAmount:[node getText] currencyID:inCurrencyID];
return self;
}
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID
{
amount = [[NSDecimalNumber alloc] initWithDouble:inAmount];
self.currencyID = inCurrencyID;
return self;
}
- (BOOL) isZeroAmount
{
return [amount compare:[NSDecimalNumber zero]] == NSOrderedSame;
}
- (void) dealloc
{
[amount release];
[currencyID release];
[super dealloc];
}
@end

53. @implementation CurrencyAmount
@synthesize amount;
@synthesize currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID
{
return [[[CurrencyAmount alloc] initWithDoubleAmount:0.0 currencyID:inCurrencyID] autorelease];
}
- (id) initWithNode:(XMLNode *) node
{
NSString *inCurrencyID = [node attributeValue:@"currencyID"];
[self initWithStringAmount:[node getText] currencyID:inCurrencyID];
return self;
}
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID
{
amount = [[NSDecimalNumber alloc] initWithDouble:inAmount];
self.currencyID = inCurrencyID;
return self;
}
- (BOOL) isZeroAmount
{
return [amount compare:[NSDecimalNumber zero]] == NSOrderedSame;
}
- (void) dealloc
{
[amount release];
[currencyID release];
[super dealloc];
}
@end

54. @implementation CurrencyAmount
@synthesize amount;
@synthesize currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID
{
return [[[CurrencyAmount alloc] initWithDoubleAmount:0.0 currencyID:inCurrencyID] autorelease];
}
- (id) initWithNode:(XMLNode *) node
{
NSString *inCurrencyID = [node attributeValue:@"currencyID"];
[self initWithStringAmount:[node getText] currencyID:inCurrencyID];
return self;
}
nested call
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID
{
amount = [[NSDecimalNumber alloc] initWithDouble:inAmount];
self.currencyID = inCurrencyID;
return self;
}
- (BOOL) isZeroAmount
{
return [amount compare:[NSDecimalNumber zero]] == NSOrderedSame;
}
- (void) dealloc
{
[amount release];
[currencyID release];
[super dealloc];
}
@end

55. @implementation CurrencyAmount
@synthesize amount;
@synthesize currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID
{
return [[[CurrencyAmount alloc] initWithDoubleAmount:0.0 currencyID:inCurrencyID] autorelease];
}
- (id) initWithNode:(XMLNode *) node
{
NSString *inCurrencyID = [node attributeValue:@"currencyID"];
[self initWithStringAmount:[node getText] currencyID:inCurrencyID];
return self;
}
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID
{
amount = [[NSDecimalNumber alloc] initWithDouble:inAmount];
self.currencyID = inCurrencyID;
return self;
}
- (BOOL) isZeroAmount
{
return [amount compare:[NSDecimalNumber zero]] == NSOrderedSame;
}
- (void) dealloc
{
[amount release];
[currencyID release];
[super dealloc];
}
@end

56. @implementation CurrencyAmount
@synthesize amount;
@synthesize currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID
{
return [[[CurrencyAmount alloc] initWithDoubleAmount:0.0 currencyID:inCurrencyID] autorelease];
}
- (id) initWithNode:(XMLNode *) node
{
NSString *inCurrencyID = [node attributeValue:@"currencyID"];
[self initWithStringAmount:[node getText] currencyID:inCurrencyID];
this instance
return self;
}
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID
{
amount = [[NSDecimalNumber alloc] initWithDouble:inAmount];
self.currencyID = inCurrencyID;
return self;
}
- (BOOL) isZeroAmount
{
return [amount compare:[NSDecimalNumber zero]] == NSOrderedSame;
}
- (void) dealloc
{
[amount release];
[currencyID release];
[super dealloc];
}
@end

57. @implementation CurrencyAmount
@synthesize amount;
@synthesize currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID
{
return [[[CurrencyAmount alloc] initWithDoubleAmount:0.0 currencyID:inCurrencyID] autorelease];
}
- (id) initWithNode:(XMLNode *) node
{
NSString *inCurrencyID = [node attributeValue:@"currencyID"];
[self initWithStringAmount:[node getText] currencyID:inCurrencyID];
return self;
}
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID
{
amount = [[NSDecimalNumber alloc] initWithDouble:inAmount];
self.currencyID = inCurrencyID;
return self;
}
- (BOOL) isZeroAmount
{
return [amount compare:[NSDecimalNumber zero]] == NSOrderedSame;
}
- (void) dealloc
{
[amount release];
[currencyID release];
[super dealloc];
}
@end

58. @implementation CurrencyAmount
@synthesize amount;
@synthesize currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID
{
return [[[CurrencyAmount alloc] initWithDoubleAmount:0.0 currencyID:inCurrencyID] autorelease];
}
- (id) initWithNode:(XMLNode *) node
{
NSString *inCurrencyID = [node attributeValue:@"currencyID"];
[self initWithStringAmount:[node getText] currencyID:inCurrencyID];
return self;
}
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID
{
amount = [[NSDecimalNumber alloc] initWithDouble:inAmount];
self.currencyID = inCurrencyID;
return self;
}
- (BOOL) isZeroAmount
{
return [amount compare:[NSDecimalNumber zero]] == NSOrderedSame;
}
- (void) dealloc
{
override superclass
[amount release];
[currencyID release];
[super dealloc];
}
@end

59. @implementation CurrencyAmount
@synthesize amount;
@synthesize currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID
{
return [[[CurrencyAmount alloc] initWithDoubleAmount:0.0 currencyID:inCurrencyID] autorelease];
}
- (id) initWithNode:(XMLNode *) node
{
NSString *inCurrencyID = [node attributeValue:@"currencyID"];
[self initWithStringAmount:[node getText] currencyID:inCurrencyID];
return self;
}
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID
{
amount = [[NSDecimalNumber alloc] initWithDouble:inAmount];
self.currencyID = inCurrencyID;
return self;
}
- (BOOL) isZeroAmount
{
return [amount compare:[NSDecimalNumber zero]] == NSOrderedSame;
}
- (void) dealloc
{
[amount release];
[currencyID release];
[super dealloc];
}
@end

60. @implementation CurrencyAmount
@synthesize amount;
@synthesize currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID
{
return [[[CurrencyAmount alloc] initWithDoubleAmount:0.0 currencyID:inCurrencyID] autorelease];
}
- (id) initWithNode:(XMLNode *) node
{
NSString *inCurrencyID = [node attributeValue:@"currencyID"];
[self initWithStringAmount:[node getText] currencyID:inCurrencyID];
return self;
}
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID
{
amount = [[NSDecimalNumber alloc] initWithDouble:inAmount];
self.currencyID = inCurrencyID;
return self;
}
- (BOOL) isZeroAmount
{
return [amount compare:[NSDecimalNumber zero]] == NSOrderedSame;
}
- (void) dealloc
{
memory mangement
[amount release];
[currencyID release];
[super dealloc];
}
@end

61. @implementation CurrencyAmount
@synthesize amount;
@synthesize currencyID;
+ (CurrencyAmount *) zeroAmountWithCurrencyID:(NSString *) inCurrencyID
{
return [[[CurrencyAmount alloc] initWithDoubleAmount:0.0 currencyID:inCurrencyID] autorelease];
}
- (id) initWithNode:(XMLNode *) node
{
NSString *inCurrencyID = [node attributeValue:@"currencyID"];
[self initWithStringAmount:[node getText] currencyID:inCurrencyID];
return self;
}
- (id) initWithDoubleAmount:(double) inAmount currencyID:(NSString *) inCurrencyID
{
amount = [[NSDecimalNumber alloc] initWithDouble:inAmount];
self.currencyID = inCurrencyID;
return self;
}
- (BOOL) isZeroAmount
{
return [amount compare:[NSDecimalNumber zero]] == NSOrderedSame;
}
- (void) dealloc
{
[amount release];
[currencyID release];
[super dealloc];
}
@end

62. Tools

64. XCode
• Full featured IDE
• Build, debug
• Code navigation, completion
• Refactoring
• SCM Integration
• Wizards

65. Interface Builder
• Drag-and-drop, UI Design Tool
• Integrated with XCode
• Connect code to UI elements
(events)

66. Instruments
• Profiling Tool
• Memory Usage
• Leaks
• CPU Usage
• Threads, I/O Monitoring

67. iPhone Emulator
Runs application natively
Not all APIs available
Some APIs mocked: Location

68. Cocoa Touch
• MVC Framework
• AppKit
• Controls, Events
• UIKit
• Accelerometer, Multi-touch

69. Dangers

70. Garbage

71. Don’t Call Me...
Push Notifications = Substitute for
Background Processing?

72. App 2 App
No formal intra-application
communication allowed
Custom URL protocols used as hack

73. QA?
Manual provisioning: 100 iPhone

76. Android
• Devices, devices, devices
• Open Source: OS, SDK
• Language: Java+
• Features: Multi-threaded, Open GL
ES, Contacts, Email, WebKit, Media,
GPS, Google Maps, (Video)Camera,
Local Database, Background
Service, Garbage Collection, Intents
• Pitfalls: Memory Management,
Assault on Battery, Devices,
Devices, Devices...

77. Compiler Dex Compiler Compress
Source Code Class files Dex File APK

79. Java

80. Tools

81. Tools

82. DDMS

83. Android Runtime & App Framework
• Activities & Intents • Separation of Concerns
• Launch an Activity based on an • Layout
Intent
• Application Logic
• Application Interop
• XML => Bytecode
• Layout
• Localization

85. The Web
Services Diet
Web Services: Made for Servers, not
Phones
Data Centric vs. Functional Centric
Mo’ Data, Mo’ Problems
XML = Teh Suck

86. Try Not to
Drown
•Images, Audio, Video
•Browser features
taken for granted
•Caching / Cache
Management
•Simultaneous
Loading

87. Security
• What to store on device?
• What about stolen devices?
• Jailbreaking?
• Phishing?
• OAuth???
• Hard coding == FAIL

88. Upgrades? What Upgrades?
• Far from automatic
• Out of sight, out of mind
• Don’t expect upgrades
• Lots of versions to manage
• Agile Development FTW???

89. eb
le W
b i
Mo

90. Mobile Web a.k.a. HTML 5
• One app to rule them all: iPhone,
Android, webOS, Blackberry*
• Language: JavaScript, HTML, CSS
• Tools: ...
• Features: Multi-threaded!, Open GL
ES, Contacts, Email, GPS, Maps,
(Video)Camera, Local Database,
Media, Memory Management,
Security
• Pitfalls: Memory management, no
background processing, WebKit
versioning

91. Resources

92. • iPhone Developer Center
• Silicon Valley iPhone Developers
• Stack Overflow
• MOTODEV
• Android Developers
• Silicon Valley Android Developers
• Android Developers Group

93. Sprint Developer Conference
• October 26-28
• Santa Clara Convention Center
• Android, Mobile Web, webOS, RIM, J2ME, WinMo
• Coding Camps
• Free HTC Hero (Android)
• 4G Demo and Beta