by Tran Nhuan Quang @ Multinc with guidance from Huy Zing BarCamp Saigon 1 November 15, 2008

Features on the iPhone client Redesigned UI for mobile Sound alerts and vibrations on incoming questions

Redesigned UI for mobile

Sound alerts and vibrations on incoming questions

Echo-o on iPhone Simulation

iPhone development tools Mac OS 10.5.4+ iPhone SDK 2.1 (current version) An Iphone

Mac OS 10.5.4+

iPhone SDK 2.1 (current version)

An Iphone

Things that need to know How to use Xcode How to use C/Objective-C And the iPhone APIs

How to use Xcode

How to use C/Objective-C

And the iPhone APIs

Application Structure MVC structure Model: classes that deal with data Eg. Data stores View: classes that contain the UI components Eg. Web component, images, etc. Controller: classes that deal with the actions Eg. A react to an event, etc

MVC structure

Model: classes that deal with data

Eg. Data stores

View: classes that contain the UI components

Eg. Web component, images, etc.

Controller: classes that deal with the actions

Eg. A react to an event, etc

The project bundle

Different way to create views Manually create views by inherit the UIView class Use Interface Builder : drag & drop UI components

Manually create views by inherit the UIView class

Use Interface Builder : drag & drop UI components

Interface Builder

Example code Playing a sound file SystemSoundID mySSID; soundURL = CFURLCreateWithFileSystemPath (kCFAllocatorDefault, CFSTR ("asoundfile.aif"), kCFURLPOSIXPathStyle, FALSE); // create the system sound ID AudioServicesCreateSystemSoundID (soundURL, &mySSID); // play the sound file AudioServicesPlaySystemSound (mySSID); // vibrate the phone AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);

Playing a sound file

Testing & Deployment Membership cost of $99-$299 is required A jail broken iPhone with some “magic” tricks

Membership cost of $99-$299 is required

A jail broken iPhone with some “magic” tricks

Running an app on an jail broken iPhone Copy the application over the iPhone /Applications directory Install ldid from Cydia Fake a digital signature ldid -S /Applications/MyApp.app/MyApp Change the mode chmod +x /Applications/MyApp.app/MyApp

Copy the application over the iPhone /Applications directory

Install ldid from Cydia

Fake a digital signature

ldid -S /Applications/MyApp.app/MyApp

Change the mode

chmod +x /Applications/MyApp.app/MyApp

http://multinc.com/ http://developer.apple.com/iphone/