Describe how to make the iDrummer(uDrummer after all) for the first time with Objective-C and Xcode 3 maybe.

1. iPhone Apps II
iDrummer Development
EungShik Kim
Feb 21, 2009
UANGEL Corporation
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2. iDrummer
Instroduction
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3. iDrummer
Features
• Fast startup with ‘Default.png’ image file
• Scaled transform while loading first view
• Changing view with UIPageControl
• Flipping view by preference setting
• Effect images and sound by UITouch
• Playing sound effect automatically
• Remember user default settings
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4. iDrummer
Using Components
• UIViewController, UIView, UIImageView, ...
• UITableView, UITableViewCell, ...
• UIAccelerometer (not included in v1.0)
• Control OpenAL Audio (OpenAL/al.h)
• UISlider(Overrided), UISwitch, UILabel, ...
• NSThread, NSUserDefaults
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5. iDrummer
Development Log
1/2 1/5 2/2 2/4 2/5 2/6 2/8 2/16
• Making first draft (Without design)
• Making second draft (With design)
• Add ‘page slide’ with accelerometer
• Add ‘Timer Thread’ and ‘8, 16, 32 beat’
• iDrummer alpha open
• Changing sound to ambient audio session
• Distribute on iTunes AppStore
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6. iDrummer
Development
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7. iDrummer
Application Launching
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8. iDrummer
Application Launching Mechanism
Framework: UIKit
UIApplicationMain()
Other Sources/main.m
Inherit: UIResponder: NSObject
UIApplication
Resources/MainWindow.xib
Framework: UIKit
<UIApplicationDelegate>
Application Cotroller/iDrummerAppDelegate.h
Class: UIApplicationDelegate
[applicationDidFinishLaunching]
Application Cotroller/iDrummerAppDelegate.m
Class: UIViewController
[RootViewController viewDidLoad]
Application Cotroller/RootViewController.m
AcousticDrumView
ElectronicDrumView
MiniDrumView
ThumbDrumView
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9. iDrummer
UIViewController
& UIView
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10. iDrummer
Create UIViewController class
!N > Cocoa Touch Classes
> UIViewController subclass Insert filename
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11. UIViewController class
Code Review
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12. iDrummer
Create UIView class
!N > Cocoa Touch Classes
> UIView subclass Insert filename
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13. UIView class
Code Review
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14. iDrummer
Create XIB file 1
Right click on ‘Resources’ User Interfaces > View XIB
Insert filename
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15. iDrummer
Create XIB file 2
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16. iDrummer
Create XIB file 3
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17. iDrummer
Create XIB file 4
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18. Connect to RootViewController
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19. iDrummer
Class Hierarchy
& NSUserDefaults
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20. iDrummer
NSUserDefaults - Register
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21. iDrummer
NSUserDefaults - Restore
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22. iDrummer
NSUserDefaults - Remember
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23. iDrummer
UITableViewCell
& Override UISlider
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24. iDrummer
Create UITableViewCell class
!N > Cocoa Touch Classes
> UITableViewCell subclass Insert filename
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25. UITableViewCell class
Code Review
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26. iDrummer
Override UISlider
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27. iDrummer
UIAccelerometer
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28. iDrummer
UIAccelerometerDelegate Protocol
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29. UIAccelerometer
Code Review
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30. iDrummer
OpenAL Service
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31. iDrummer
Core Audio in iPhone OS
iPhone OS Core Audio architecture
Mac OS X Core Audio architecture
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32. SoundEngine.cpp
Code Review
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33. iDrummer
And so force...
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34. iDrummer
Enabling Multiple Touch
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35. iDrummer
Fast Startup with Default.png
320px
480px
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36. iDrummer
Scaled transform loading first view
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37. iDrummer
Change view with UIPageControl
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38. iDrummer
Flipping view with ‘i’ button
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39. iDrummer
Effect images and sound by UITouch
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40. iDrummer
Hide the status bar of iPhone
Create ‘UIStatusBarHidden’ key and checked value
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41. Thanks.
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