Hdc09 I Phone Dev Connecting To Web
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This document discusses various approaches for connecting iPhone applications to cloud services and the internet. It covers using web services and parsing XML and JSON data formats. It also mentions libraries like MGTwitterEngine, ObjectiveFlickr, and ASIHTTPRequest that can help connect to popular internet services. Best practices are discussed around asynchronous networking, caching, and debugging cloud connections from iPhone applications.
![XML Code
NSXMLParser *parser = [[NSXMLParser alloc]initWithData:....];](https://image.slidesharecdn.com/hdc09-iphonedevconnectingtoweb-091018000054-phpapp01/85/Hdc09-I-Phone-Dev-Connecting-To-Web-51-320.jpg)
![XML Code
NSXMLParser *parser = [[NSXMLParser alloc]initWithData:....];](https://image.slidesharecdn.com/hdc09-iphonedevconnectingtoweb-091018000054-phpapp01/85/Hdc09-I-Phone-Dev-Connecting-To-Web-52-320.jpg)
![XML [delegate] Code](https://image.slidesharecdn.com/hdc09-iphonedevconnectingtoweb-091018000054-phpapp01/85/Hdc09-I-Phone-Dev-Connecting-To-Web-53-320.jpg)
![XML [delegate] Code](https://image.slidesharecdn.com/hdc09-iphonedevconnectingtoweb-091018000054-phpapp01/85/Hdc09-I-Phone-Dev-Connecting-To-Web-54-320.jpg)
![Parsing JSON
#import <JSON/JSON.h>
// Get a JSON string
NSString *jsonString = ....;
// Parsing will result in Foundation objects
id object = [jsonString JSONValue];](https://image.slidesharecdn.com/hdc09-iphonedevconnectingtoweb-091018000054-phpapp01/85/Hdc09-I-Phone-Dev-Connecting-To-Web-62-320.jpg)
![Using JSON-framework
// Create data.
NSDictionary *dictionary = ...;
// converts into a JSON spring.
jsonString = [dictionary JSONRepresentation];](https://image.slidesharecdn.com/hdc09-iphonedevconnectingtoweb-091018000054-phpapp01/85/Hdc09-I-Phone-Dev-Connecting-To-Web-63-320.jpg)
Hdc09 I Phone Dev Connecting To Web
- 1. iPhone Development Connecting to the cloud
- 2. Ninth Division real legit growing apple platforms development company in omaha, ne www.ninthdivision.com @ninthdivision Andy Peters @andypeters
- 3. Midwest Mobile Developers connecting all the mobile developers in the region (Nebraska, Iowa, Kansas, Missouri) http://groups.google.com/group/midwest-mobile-developers
- 4. Getting started with iPhone Development
- 5. Getting started with iPhone Development
- 11. iPhone The Cloud
- 12. Why? flickr: Waldo#4
- 14. 30 Million iPhone’s Sold as of Sept. 2009
- 16. 20 Million iPod Touches Sold as of Sept. 2009
- 17. User experience.
- 19. Offline usage.
- 26. Social networks.
- 28. More devices...
- 29. More devices...
- 30. More devices...
- 31. More devices...
- 32. iPhone users use the hell out of social apps
- 34. 15,604,157 Monthly Active Users Facebook for the iPhone
- 35. Tweetie 2 for the iPhone
- 36. Be unique. flickr: Erica Marshall
- 37. Game’s submitting scores to community.
- 38. Post high score to twitter.
- 39. Announce new user profile on Facebook.
- 40. Music related app uses Last.fm for data.
- 41. Grab data to populate a map.
- 42. Some devices are tied directly to the cloud.
- 43. MORE and MORE!
- 44. Connection Methods. flickr: barjack
- 45. Web Services ~= The Cloud
- 47. XML There is no SOAP Client #642 or XML-RPC Client #1,203. You parse it yourself.
- 48. Options for Parsing XML • libxml2 • Tree-based: easy to parse, tree in memory • Event-driven: less memory, more complex managing state • Text reader: fast, easy to write • NSXMLParser • Event-driven: simpler but less powerful than libXML • No NSXMLDocument on iPhone • expat too!!!
- 51. XML Code NSXMLParser *parser = [[NSXMLParser alloc]initWithData:....];
- 52. XML Code NSXMLParser *parser = [[NSXMLParser alloc]initWithData:....];
- 55. XML Docs. • “Event Driven XML Programming in Cocoa” - ADC • NSXMLParser.h / Supporting doc. • NSXMLParserDelegate.h / Supporting doc. • Sample code: XMLPerformance and SeismicXML • Google: cocoa + nsxmlparser
- 59. JavaScript Object Notation • More lightweight than XML • Similar to a Property List • arrays, dictionaries, strings, numbers • Open Source json-framework wrapper for Objective-C • no “official” Apple library (yet)
- 60. JavaScript Object Notation • If I have a choice, I prefer using JSON • Lightweight • Fast • Easy to parse and map to objects.
- 61. JSON Looks like { “name” : “Hearful Andrena”, “pets” : 23, “poop-scooping-service” : false, “pet-names” : [“Hanna”, “Nemo”} }
- 62. Parsing JSON #import <JSON/JSON.h> // Get a JSON string NSString *jsonString = ....; // Parsing will result in Foundation objects id object = [jsonString JSONValue];
- 63. Using JSON-framework // Create data. NSDictionary *dictionary = ...; // converts into a JSON spring. jsonString = [dictionary JSONRepresentation];
- 65. UIWebView
- 66. Best Practices
- 67. Asynchronous Never parse on the main thread.
- 68. NSOperation
- 69. Never assume you know the size of the server response.
- 71. Show progress.
- 73. Debugging.
- 74. Caching
- 75. Libraries, Frameworks and Wrappers flickr: (Erik)
- 76. MGTwitterEngine
- 77. ObjectiveFlickr
- 78. Facebook Connect
- 79. iPhone on Rails
- 80. ASIHTTPRequest
- 81. Development Demos flickr: TheNixer
- 82. Development Demos flickr: TheNixer
- 83. Questions ? flickr: Jim in Times Square
- 84. ninth Division real legit growing apple platforms development company in omaha, ne www.ninthdivision.com @ninthdivision