Objective-C Vitamins

This is a talk that I gave at Tech Talks TO about the three things that the Objective-C community needs to embrace to grow into a mature, stable platform: Accessibility, Unit Testing, and Open Source.

Transcript

1. Objective-C Vitamins
   Ash Furrow, iOS Developer & Author
   

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2. Accessibility
   

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3. Matters
   Accessibility
   

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4. Ontario Citizens
   1 in 7
   

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5. Ontario Citizens
   Broader
   1 in 7
   Appeal
   Market
   

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6. Legislation
   Ontario Citizens
   Broader
   AODA
   1 in 7
   Appeal
   Market
   

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7. Legislation
   Ontario Citizens
   Broader
   Low Cost in iOS
   AODA
   Relatively
   1 in 7
   Appeal
   Market
   

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8. iOS is
   and
   visual
   aural
   

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9. You wouldn’t ship a
   bad visual interface
   Why would you ship a
   bad aural one?
   

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10. Accessibility is
    HARD
    

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11. WHY?
    

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12. TURN VoiceOver ON
    (seriously)
    

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13. Accessibility is
    EASY
    

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14. UIAccessibility
    

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15. Part of UIKit Built in
    UIAccessibility
    

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16. Part of UIKit Built in
    UIAccessibility
    Conformed to by UIView Built in
    

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17. Part of UIKit Built in
    UIAccessibility
    Conformed to by UIView Built in
    You can roll your own Built in
    

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18. UIAccessibilityTraits
    Causes
    Page
    Turn
    Starts
    Media
    Session
    None
    Button
    Link
    Search Field
    Image
    Plays Sound
    Keyboard Key
    Static Text
    Summary
    Element
    Not Enabled Updates Frequently
    Adjustable
    Allow Direct Interaction
    Header
    Selected
    

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19. invisible
    THE
    BUTTON
    

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20. Using
    as
    button
    labels
    

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21. drawRect:
    UITableViewCell
    

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22. Localization
    ຊ౔Խ
    ϩʔΧϥΠθʔγϣϯ
    !"#$%&ا
    локализация
    lokalisasyon
    lokalisatie
    εντοπισµός
    localisation
    localización
    lokalisering
    localização
    

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23. Honour
    Building quality software
    is a measure of
    Quality
    Building accessible software
    is a measure of
    

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24. Testing
    Unit
    

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25. WHAT IS
    UNIT TESTING?
    

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26. WHY UNIT TEST?
    

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27. MODEL
    CONTROLLER
    VIEW
    KVO
    OWNS OWNS
    USER
    INTERACTION
    

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28. MODEL
    CONTROLLER
    VIEW
    KVO
    OWNS OWNS
    USER
    INTERACTION
    EXTENSION EXTENSION
    

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29. “Common things are easy and
    uncommon things are possible.”
    

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30. Uncommon
    “Common things are easy and
    uncommon things are possible.”
    Unit Testing is
    

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31. Uh oh.
    

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32. Yes!
    In Objective-C?
    

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34. - (void)testExample
    {
    STFail(@"Unit tests are not implemented yet in
    My Sweet New AppTests");
    }
    

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35. And that’s it.
    

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36. OCMock
    Introducing
    

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37. Objects
    Mock
    

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38. NSURLRequest *dummyURLRequest = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://
    example.com"]];
    PXRequest *requestUnderTest = [[PXRequest alloc] initWithURLRequest:dummyURLRequest completion:nil];
    id mockConnection = [OCMockObject niceMockForClass:[NSURLConnection class]];
    [[mockConnection expect] start];
    id partialRequestMock = (PXRequest *)[OCMockObject partialMockForObject:requestUnderTest];
    [[[partialRequestMock stub] andReturn:mockConnection] urlConnectionForURLRequest:OCMOCK_ANY];
    [partialRequestMock start];
    [mockConnection verify];
    A Simple Test
    A lot of Code
    

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39. Why?
    

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40. Because OCMock is
    OLD and BUSTED
    

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41. New Hotness
    Kiwi
    

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42. Integrates
    Xcode
    with
    

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44. describe(@"ClassName", ^{
    context(@"a state the component is in", ^{
    __block id variable = nil;
    it(@"should do something", ^{
    [[variable should] meetSomeExpectation];
    });
    specify(^{
    [variable shouldNotBeNil]
    });
    });
    });
    

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45. describe(@"ClassName", ^{
    context(@"a state the component is in", ^{
    __block id variable = nil;
    beforeAll(^{ // Occurs once
    });
    afterAll(^{ // Occurs once
    });
    beforeEach(^{ // Occurs before each enclosed "it"
    variable = [MyClass instance];
    });
    afterEach(^{ // Occurs after each enclosed "it"
    });
    });
    });
    

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46. VIOUR DRIVEN DEVELOPMENT
    BEHAVIOUR DRIVEN DEVELOPMENT
    R DRIVEN DEVELOPMENTBEHAVIOUR D
    BEHAVIOU
    BEHAVIOUR DRIVEN DEVEL
    BEHAVIOUR DRIVEN DEVELOPMENT
    VELOPMENT
    NT
    DEVELOPMENT
    NT
    BEHAVIOUR DRIVEN DEV
    UR DRIVEN DEVELOPMENTBEHAVIOUR
    BEHAVIOUR DRIVEN DEVELOPMENTBEH
    

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47. GTFO.
    UAT?
    

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48. SOURCE
    OPEN
    

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49. INSULAR
    Objective-C Developers Tend to be
    (probably historical)
    

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50. WITHOUT
    IMAGINE A WORLD
    RubyGems
    

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51. Copy Files Ugh.
    OPTIONS
    

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52. Copy Files Ugh.
    OPTIONS
    Git Submodules Complicated.
    

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53. Copy Files Ugh.
    OPTIONS
    Git Submodules Complicated.
    CocoaPods DAZZLINGLY AMAZING.
    

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54. Dependency Management
    CocoaPods
    Versioning
    GitHub
    

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55. DEVELOPERS
    STUBBORN
    are
    

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56. DEVELOPERS
    DON’T KNOW
    

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57. THE TOOLS
    SUCK
    

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58. Let’s
    LEARN
    

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59. Let’s
    TEACH
    

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60. Let’s
    BLOG
    

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61. http://ashfurrow.com/book
    

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62. @ashfurrow
    ashfurrow.com
    

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