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Wednesday 2-4, KH 105

Wednesday 2-4, KH 105. COMP 446 / ELEC 446 Mobile Wireless Services Project. Scott Cutler Professor in the Practice of Computer Technology Department of Computer Science Department of Electrical and Computer Engineering cutler@rice.edu 10/06/10. Today’s Agenda. Events of the week

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Wednesday 2-4, KH 105

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  1. Wednesday 2-4, KH 105 COMP 446 / ELEC 446 Mobile Wireless Services Project Scott Cutler Professor in the Practice of Computer Technology Department of Computer Science Department of Electrical and Computer Engineering cutler@rice.edu 10/06/10

  2. Today’s Agenda • Events of the week • Announcements / Infrastructure Updates • Final Projects • Web Services • Next Week • Paparazzi 2 due by 10/12/2010 COMP 446 / ELEC 446 - Week 7

  3. Events of the Week • Why Facebook should love 'The Social Network' • Apple TV analysis reveals storage space for apps • Google TV Announces Its Programming Partners, but the Top Networks Are Absent • HP Taps Ex-SAP Head Apotheker as CEO, President • Google offers JPEG alternative for faster Web • Verizon to refund up to $90M in bogus data charges • Google Snaps Up BlindType to Keep It from iPhone, iPad • Skype comes to Android 2.1 and above • Microsoft Joins Apple, Oracle in Suing to Impede Android • iPad surpasses DVD player for fastest adoption rate ever of non-phone gadgets • Apple asks for a stay on huge patent penalty • Google: Oracle's Java patent suit invalid • Tough times ahead for hard-drive makers? • Symantec Unveils Mobile Security Plans for Android, iOS COMP 446 / ELEC 446 - Week 7

  4. Windows Phone 7 Seminar COMP 446 / ELEC 446 - Week 7

  5. Current Roster • Julia Botev • COMP, SR, McMurtryJulia.K.Botev@rice.edu • Eric Cheng • COMP, GR eric.cheng@rice.edu • Jesus Cortez • COMP, JR, Jones JesusCortez@rice.edu • Graham De Wit • ELEC, SR, Wiessgraham.dewit@rice.edu • Ashley Herron • ELEC, SR, Martel Ashley.N.Herron@rice.edu • Vic Hu • ELEC, SR, Wiessmrwho@rice.edu • Marcos Hung • BIOE, GR Marcos.G.Hung@rice.edu COMP 446 / ELEC 446 - Week 7

  6. Current Roster (2) • Jin Kim • COMP, GR Kyujin.Kim@rice.edu • Kevin Lin • COMP, SO, McMurtryKevin.S.Lin@rice.edu • Robyn Moscowitz • COMP, JR, McMurtryRobyn.A.Moscowitz@rice.edu • Josh Rykowski • COMP, GR Joshua.Rykowski@rice.edu • Ivan Van • COMP, SR, Will Rice, i.van@rice.edu • Jeff Yeh • ELEC, SR, Hanszenjeff.yeh@rice.edu • Aron Yu • ELEC, SR, HanszenAron.Yu@rice.edu COMP 446 / ELEC 446 - Week 7

  7. Current Roster (3) • Michael Lo • ELEC, GR mlo@rice.edu • Elliot Ng • ELEC, GR elliottng@rice.edu • Rick Manning • COMP, SR, Jones rick.manning@rice.edu • Henry Zhang • ELEC, SR, Jones qz1@rice.edu • Jason Xu • ELEC, SR, Brown jax1@rice.edu • Catherine Elder • ELEC, SR, Hanszencje1@rice.edu • Sid Byrd • Staff sidb@rice.edu • Xiang ‘Jash’ Guo • ELEC, GR xg1@rice.edu COMP 446 / ELEC 446 - Week 7

  8. COMP 446 Syllabus • 8/25/10 Introduction / What makes mobile apps special • Assignment: Load Visual Studio – Due 8/30/10, Access a Mac, Download CS193P materials • 9/1/10 Intro to Mac OS X and Cocoa Touch, Objective-C, Dev Tools, Using Objective-C, Foundation framework • Videos: Lecture 1. Introduction to Mac OS X, Cocoa Touch, Objective-C and Tools (January 5, 2010) Lecture 2. Objective-C and Foundation Framework (January 7, 2010) • Assignment: Hello Rice [1a] and WhatATool 1 [1b] (Due 9/7/10) • 9/8/10 Discussion of first applications • Videos: Lecture 3. Custom Classes, Object Lifecycle, Autorelease, Objective-C Properties (January 12, 2010)Lecture 4. Building an Application; Model, View, Controller; Nib Files; Controls and Target-Action (January 14, 2010) Lecture 4a Xcode, Finding Help, Debugging (January 15, 2010) • Assignment: WhatATool 2 [2a] and HelloPoly I [2b] (Due 9/14/10) • 9/15/10 ASP.Net with a little HTML • Videos: Lecture 5. Views, Drawing, and Animation (January 19, 2010) Lecture 6. Designing iPhone Applications, Model-View-Controller, View Controllers (January 21, 2010) • Assignment: HelloPoly II [3] (Due 9/21/10) • 9/22/10 iPhone (pseudo) Web Apps / Browser Capabilities • Videos: Lecture 7. Navigation & Tab Bar Controllers (January 26, 2010) Lecture 8. Scroll Views and Table Views (January 28, 2010) • Assignment: Time to catch up or move ahead. • 9/29/10 SQL 101 • Videos: Lecture 9. Data in Your iPhone App (February 2, 2010)- Lecture 10. Performance (February 4, 2010) • Assignment: Paparazzi 1 (Due 10/5/10) • 10/6/10Creating and Consuming Web Services • Videos: Lecture 11. Text Input and Presenting Content Modally (February 9, 2010) Lecture 12. Web Views; Locations and Maps (February 11, 2010) • Assignment: Paparazzi 2 (Due 10/13/10) COMP 446 / ELEC 446 - Week 7

  9. COMP 446 Syllabus • 10/13/10iPad Development / iOS 4 • Videos:Lecture 13. Address Book: Putting People in Your App (February 16, 2010) Lecture 14. Touch Events & Multi-touch (February 18, 2010)Lecture 12a: Designing for the iPad (February 12, 2010)Assignment: Final Project Proposal and Paparazzi 3 (Both due 10/19/10 ) • 10/20/10 Android 1 • Videos: Lecture 15. iPhone Device APIs; Location, Accelerometer & Camera; Battery Life & Power Management (February 23, 2010) Lecture 16. Audio APIs, Video Playback, Settings (February 25, 2010) • Assignment: Final Project, Stage 1 (Due 10/26/10) • 10/27/10 Android 2 • Videos: Lecture 17. Bonjour, NSStream, GameKit (March 2, 2010) Lecture 18. Unit Testing; Fun with Objective-C; Localization (March 4, 2010) • Assignment: Advanced Feature App or iPad Application (Due 11/02/10) • 11/3/10 Windows Phone 7, Final Project Prep • Videos: Lecture 19. OpenGL ES Basics (March 9, 2010)Lecture 20. From Student to Startup: Lessons from a CS193P Alumnus (March 11, 2010) • Assignment: Final Project, Stage 2 (Due 11/09/2010) • 11/10/10 iPhone v. Android v. Windows Phone 7 group discussion • Videos: Yelp Monocle (February 6, 2010) Evernote(February 19, 2010) Bump (February 26, 2010) • Assignment: Final Project, Stage 3 (Due 11/16/2010) • 11/17/10 Final Project Prep • Videos: Publishing on the App Store (March 5, 2010) LinkedIn: Important Life Lessons on CoreData & GameKit (March 12, 2010) • Assignment: Final Project (Due 12/01/2010) • 11/24/10 Thanksgiving – Continue Final Projects on your own • 12/1/10 Demonstrate Final Projects • 12/5/10 Class Offsite – Sunday (tentative) COMP 446 / ELEC 446 - Week 7

  10. Final Projects • Major component of this course. • All exercises through Paparazzi 3 designed to prepare you to create a great app. • It would be great if App has a life after the course; however • More important for app to take advantage of unique features of smart, connected devices. COMP 446 / ELEC 446 - Week 7

  11. iPhone Advanced Features • Address Book • Bluetooth • Compass (3Gs) • Custom Animations • Gestures • GPS • Integrated Email • Integrated Movie Camera (3Gs) • Image Picker • Integrated Still Camera • Integrated Web Browser • Internet • Microphone • OpenAL • OpenGL • Playing Movies • Proximity Sensor • Rotation sensor • Multitasking • Local Notifications • Core Motion • iAd • High-Resolution Screen • Game Center COMP 446 / ELEC 446 - Week 7

  12. Final Project Steps • Create Projects and Find a Partner • Projects need to utilize advanced features of smart devices. • Projects need to be approved by 10/19/10 • Full spec by 10/26/10 • Weekly milestones through end of semester • Demonstration of one advanced feature by 11/2 COMP 446 / ELEC 446 - Week 7

  13. Final Project Website • Used to create ideas and find partners • OK to do solo project or predefine partners • As said before, you have choice of project and platform – but projects need pre-approval • Accessed through the secure Final Projects tab of the Assignment Submission website. • www.comp446.com or directly at • http://www.comp446.com/wsAssignments/SecurePages/FinalProjects.aspx COMP 446 / ELEC 446 - Week 7

  14. Available Hardware • 3 iPhones – original, 3G, 3Gs • Wi-Fi or AT&T • 4 Motorola Droids • Wi-Fi or Verizon • 1 Google Nexus One • Wi-Fi, T-Mobile 3G or AT&T EDGE COMP 446 / ELEC 446 - Week 7

  15. Special for Android Students • Obtain Reto Meier’s Professional Android 2 Application Development Book ($34.19 from Amazon) • (ISBN-13: 978-0470565520) • You are encouraged to complete iOS through Paparazzi 3; however • You may replace Paparazzi 2 with Android Hello world app by fully installing environment and initial project from Chapter 2 • You may replace Paparazzi 3 with Android application (see me for details it will be from Chapters 3 - 7) • Replace Advanced feature app with Android Advanced Feature App (from Chapters 8 – 15). COMP 446 / ELEC 446 - Week 7

  16. Paparazzi 1 • Scale to Fill vs. Aspect Fit • Including all resources in your bundle • Universal PhotoListViewController COMP 446 / ELEC 446 - Week 7

  17. Paparazzi 2 • Replaces UINavigationController with UITableViewController • Very common feature of many iOS apps. • Subclass of UIScrollView • UITableViewCell • Very lazy and green • Loaded as needed, Reused • Uses Delegate concept to control what gets displayed • UITableViewDataSource • -(UITableViewCell *)tableView:(UITableView *)tableViewcellForRowAtIndexPath:(NSIndexPath *)indexPath; • Core Data • One time creation of static database (dynamic for Paparazzi 3) • NSFetchedResultsController • – (id)objectAtIndexPath:(NSIndexpath *) indexPath • Consider getting TableView working and then attacking Core Data • Likely to be most difficult assignment of semester • Sample Code onhttp://www.stanford.edu/class/cs193p/cgi-bin/drupal/downloads-2010-winter • Will require a free Flickr key to actually run COMP 446 / ELEC 446 - Week 7

  18. Addressing Homework Load • Register yourself to a final project by next class, 10/13 – big negative if you do not! • Break Paparazzi 2 into two assignments. • Implement Table Views by 10/12 • Implement Core Data by 10/19 • For next week, OK to use static arrays for photos and fake objectAtIndexPath routine • Paparazzi 3 is optional assignment • Necessary but not sufficient for grade of A+ COMP 446 / ELEC 446 - Week 7

  19. Creating and Consuming Web Services COMP 446 / ELEC 446 - Week 7

  20. Web Services • The ability to programmatically access remote servers over a web like interface • The web as a subroutine • The web without a browser COMP 446 / ELEC 446 - Week 7

  21. Two Popular Types • REpresentationalState Transfer (RESTful) • Developed in 2000 by Roy Fielding in his doctoral dissertation. • Interface uses standard HTTP protocols • Lightweight, human readable, no toolkit required • Simple Object Access Protocol (SOAP) • New protocol relying on XML, RPC and HTTP • More of a Client/Server tunnel over HTTP • Easy to use, Rigid (defined), development tools COMP 446 / ELEC 446 - Week 7

  22. RESTFul Example SubMoviesInfo() Dim URL AsNewStringBuilder URL.Append("http://www.example.com/movies.main") URL.Append("?var1=movies") ‘? Followed by key=valueURL.Append("&zip=") ‘& Followed by key=valueURL.Append(tbZip.text) ‘assumes a textbox named zip MovieInfoDS= NewDataSet Try MovieInfoDS.ReadXml(XmlReader.Create(URL.ToString())) IfShowInfoDS.Tables.Count = 0 Then . . . EndIf Catchex AsException . . . EndTry EndSub COMP 446 / ELEC 446 - Week 7

  23. REST Used Extensively by Many • Amazon (Offers both REST and SOAP) • eBay • Facebook • Yahoo! • YouTube COMP 446 / ELEC 446 - Week 7

  24. SOAP with ASP.Net • SOAP is more like a natural subroutine call • Parameters and results have strong data types • Various Discovery services • Development toolkits handle complexity • Many publically available • http://www.webservicex.net/WS/wscatlist.aspx • http://www.xmethods.net • Amazon.com COMP 446 / ELEC 446 - Week 7

  25. Create a Web Service • 2 Steps • Create a Web Services File • Right-Click your web project, select ‘Add New Item’ • Chose Web Service and give it a Name (uses the .asmx extension) • Write your functions • Code placed in App_Code folder under the name.vb file • Functions preceded with the ‘<WebMethod()> _’ tag <WebMethod()> _ Public Function ByTwo(ByValInputValue As Integer) As Integer Return InputValue * 2 End Function COMP 446 / ELEC 446 - Week 7

  26. Consuming a Web Service • 3 Steps to consume a basic web service • Create a reference to the web service in your project • Declare the web service in your function • Call the web service COMP 446 / ELEC 446 - Week 7

  27. Create the Web Reference • Right Click on your project, select Add Web Reference • Enter the URL: www.comp446.com/wsDemo/DemoWebService.asmx • Note the Service found (Hello World and ByTwo) • Give the web reference a name to use inside your program • e.g. default is com.comp446.www • Click ‘Add Reference’ COMP 446 / ELEC 446 - Week 7

  28. Consume the Web Service in a Function • Declare the Web Service • Dim Times2 As New com.comp446.www.DemoWebService • Use the Web Service • lblDoubleValue.Text = Times2.ByTwo(tbInputValue.Text)) COMP 446 / ELEC 446 - Week 7

  29. Demo COMP 446 / ELEC 446 - Week 7

  30. iOS Web Services • JSON – JavaScript Object Notation • Alternative to and lighter version of XML • Freeform “key” : value pairs • Not as secure as some other methods • Improved by native browser JSON • Similar to iOS Property Lists COMP 446 / ELEC 446 - Week 7

  31. Using JSON (Covered in Video 9 and part of Paparazzi 3) • Reading a JSON string into Foundation objects • #import <JSON/JSON.h> • // Get a JSON string from the cloud • NSString *jsonString = [NSStringstringWithContentsOfURL:urlencoding:NSUTFBStringEncodingerror:nil]; • // Parsing will result in Foundation objects • // Top level may be an NSDictionaryor an NSArray • id object = [jsonStringJSONValue]; • Writing a JSON string from Foundation objects • // Create some data in your app • NSDictionary *dictionary = ...; • // Convert into a JSON string before sending to the cloud • jsonString = [dictionary JSONRepresentation]; COMP 446 / ELEC 446 - Week 7

  32. Next Week • Will learn a lot about Table Views. • Paparazzi1 will have you select and display views. The main goal is to great and manipulate views using tab view controllers and custom views. • Paparazzi 2 will introduce table views to Paparazzi and utilize better data storage methods. • Paparazzi 3 will have you fetch data from the web and have you plot location information on a map. COMP 446 / ELEC 446 - Week 7

  33. Week 8 • Assignments • View CS193P Lecture 11 : Text Input and Presenting Content Modally • View CS193P Lecture 12 : Web Views; Locations and Maps Assignment: Paparazzi 2 (Due 10/13/10) morning (12/12 is break) • Classroom Technology: iPad Development / iOS 4.x • Choose final project architecture (iOS, Android or WP7) and let me know, particularly if it is other than iOS. • Register a final project via Assignment website and find a partner COMP 446 / ELEC 446 - Week 7

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