The document discusses Papers, a native Mac OS X application created by mekentosj using Objective-C and the Cocoa API. It provides an overview of mekentosj as the developer, describes how Cocoa and Objective-C were used to build Papers, and highlights features of Papers like dynamic plugins and protocols & delegation. It also briefly mentions new development tools for Mac OS X like Xcode 3.0 and the Xray debugging tool.

1. Creating Papers

2. mekentosj.com
Alexander Griekspoor | mek@mekentosj.com
• Who is mekentosj?
• What’s Papers?
• MacOSX as a development platform
• Cocoa & Papers

3. mekentosj.com
Alexander Griekspoor | mek@mekentosj.com
• Who is mekentosj?
• What’s Papers?
• MacOSX as a development platform
• Cocoa & Papers

4. mekentosj.com
Alexander Griekspoor | mek@mekentosj.com
• Who is mekentosj?
• What’s Papers?
• MacOSX as a development platform
• Cocoa & Papers

15. Demo

16. Photo copyright by dejus | flickr.com
Developing native applications
Objective-C & Cocoa for MacOSX

17. Objective-C & Cocoa
• Objective-C, a small superset of ANSI-C that allows object oriented programming
[object performActionWithParameter: aParameter];
• Cocoa, a powerful API for creating native MacOSX applications
Objective-C
Aqua UI
Runtime
Foundation Appkit Cocoa
ANSI-C
CoreFoundation

18. Cocoa & Objective-C
• Objective-C, a small superset of ANSI-C that allows object oriented programming
[object performActionWithParameter: aParameter];
• Cocoa, a powerful API for creating native MacOSX applications
Aqua UI
CoreData Webkit PDFkit Foundation Appkit
CoreFoundation

19. Core Data Cocoa Bindings PDFKit
Tab controls
WebKit
Spotlight
Papers & Cocoa life made easy

20. An example: dynamic plugins
• Importers / Exporters
• Search Engines
- (BOOL)readyToPerformSearch
• Protocols & Delegation
- (void) performSearchWithQuery:
• Simple but powerful - (void)didBeginSearch:(id)sender
- (void)didRetrieveObjects:(NSDictionary *)dict
• Dynamically loaded at runtime
- (void)didEndSearch: (id)sender;
- (BOOL)successfulCompletion;!
- (void) performCleanup;

21. New
A free toolbox: XCode 3.0
• GCC
• XCode 3.0
• Better workflows
• Refactoring
• Snapshots
• Inline debugging
• Interface builder 3.0
• Completely redone from scratch
• Support for core animation built-in

22. New
New ways to debug: Xray
• CHUD Tools (Shark)
• Garageband like UI
• System monitoring
• Memory
• Network
• etc
• Build on DTrace

23. How to get started
• visit developer.apple.com
• signup for free developer
account at connect.apple.com
• mekentosj.com/programs/
how.html
• email: mek@mekentosj.com
• MacResearch.org /
SciComp@Cam OSX User group
Photo copyright by shio | flickr.com