1. Ruby’izing iOS
Development
Amit Kumar

2. About me
• Ruby’ist
• Consultant: Tata Consultancy Services Ltd
• Github: toamitkumar
• Twitter: toamit
• toamitkumar.github.com

4. Released in May, 2012

5. Released in May, 2012

6. RubyMotion

7. RubyMotion
revolutionary toolchain for native iOS application development using Ruby language

8. RubyMotion
revolutionary toolchain for native iOS application development using Ruby language
neighbor's envy coder’s delight; happiness;

9. A What ??

10. A What ??

11. A What ??
Fork of MacRuby

12. A What ??
Fork of MacRuby Compiles into optimized machine code

13. A What ??
Fork of MacRuby Compiles into optimized machine code
Automatic object memory allocation and reclaim

14. A What ??
Fork of MacRuby Compiles into optimized machine code
Automatic object memory allocation and reclaim

15. A What ??
Fork of MacRuby Compiles into optimized machine code
Automatic object memory allocation and reclaim
Compiles the interfaces built in IB of XCode

16. A What ??
Fork of MacRuby Compiles into optimized machine code
Automatic object memory allocation and reclaim
Compiles the interfaces built in IB of XCode

17. A What ??
Fork of MacRuby Compiles into optimized machine code
Automatic object memory allocation and reclaim
Compiles the interfaces built in IB of XCode
Ruby-runtime tightly integrated with Obj-C runtime

18. A What ??
Fork of MacRuby Compiles into optimized machine code
Automatic object memory allocation and reclaim
Compiles the interfaces built in IB of XCode
Ruby-runtime tightly integrated with Obj-C runtime
Same ancestor as Obj-C

19. A What ??

20. A What ??
Fork of MacRuby Compiles into optimized machine code
Automatic object memory allocation and reclaim
Compiles the interfaces built in IB of XCode
Ruby-runtime tightly integrated with Obj-C runtime
Same ancestor as Obj-C

21. A What ??
Fork of MacRuby Compiles into optimized machine code
Automatic object memory allocation and reclaim
Compiles the interfaces built in IB of XCode
Ruby-runtime tightly integrated with Obj-C runtime
Same ancestor as Obj-C Object can be shared with no performance cost

22. Motion Runtime

23. Motion Runtime

24. Motion Runtime

25. Motion Runtime
Shared Runtime

26. Motion Runtime
Shared Runtime

27. Motion Runtime
Shared Runtime

28. Motion Runtime
Foundation Framework
(NSObject - Kernel)
Shared Runtime

29. Motion Runtime
Foundation Framework
(NSObject - Kernel)
Shared Runtime

30. Motion Runtime
Foundation Framework
(NSObject - Kernel)
Shared Runtime

31. Myths

32. Myths
Can I code using RubyMotion without the pain to learn Cocoa Framework ?

33. Myths
Can I code using RubyMotion without the pain to learn Cocoa Framework ?
PhoneGap like tools are much easier to learn what advantage do I get with RubyMotion ?

34. Myths
Can I code using RubyMotion without the pain to learn Cocoa Framework ?
PhoneGap like tools are much easier to learn what advantage do I get with RubyMotion ?
Pros:

35. Myths
Can I code using RubyMotion without the pain to learn Cocoa Framework ?
PhoneGap like tools are much easier to learn what advantage do I get with RubyMotion ?
Pros:
- Very easy to get started; as we all know HTML/JS/CSS

36. Myths
Can I code using RubyMotion without the pain to learn Cocoa Framework ?
PhoneGap like tools are much easier to learn what advantage do I get with RubyMotion ?
Pros:
- Very easy to get started; as we all know HTML/JS/CSS
Cons:

37. Myths
Can I code using RubyMotion without the pain to learn Cocoa Framework ?
PhoneGap like tools are much easier to learn what advantage do I get with RubyMotion ?
Pros:
- Very easy to get started; as we all know HTML/JS/CSS
Cons:
- Its a bridge that makes native api calls

38. Myths
Can I code using RubyMotion without the pain to learn Cocoa Framework ?
PhoneGap like tools are much easier to learn what advantage do I get with RubyMotion ?
Pros:
- Very easy to get started; as we all know HTML/JS/CSS
Cons:
- Its a bridge that makes native api calls
- Runs in single thread of UIWebView which is painfully slow

39. Myths
Can I code using RubyMotion without the pain to learn Cocoa Framework ?
PhoneGap like tools are much easier to learn what advantage do I get with RubyMotion ?
Pros:
- Very easy to get started; as we all know HTML/JS/CSS
Cons:
- Its a bridge that makes native api calls
- Runs in single thread of UIWebView which is painfully slow
- Limited support of direct access to native APIs

40. Myths
Can I code using RubyMotion without the pain to learn Cocoa Framework ?
PhoneGap like tools are much easier to learn what advantage do I get with RubyMotion ?
Pros:
- Very easy to get started; as we all know HTML/JS/CSS
Cons:
- Its a bridge that makes native api calls
- Runs in single thread of UIWebView which is painfully slow
- Limited support of direct access to native APIs
- Debugging becomes extremely difficult when you make native api calls

41. Download & Install
http://sites.fastspring.com/hipbyte/product/rubymotion

42. The ‘motion’ command

43. The ‘motion’ command

44. The ‘motion’ command

45. The ‘motion’ command

46. The ‘motion’ command

47. The ‘motion’ command
Protip: Forcing update to a particular version:

48. The ‘motion’ command
Protip: Forcing update to a particular version:

49. The ‘motion’ command
Protip: Forcing update to a particular version:
sudo motion update --force-version=1.2

50. The ‘motion’ command

51. The famous ‘Rake’

52. The famous ‘Rake’

53. The famous ‘Rake’

54. The famous ‘Rake’

55. The famous ‘Rake’

56. The famous ‘Rake’

57. Configuration ‘options’

58. Configuration ‘options’

59. Configuration ‘options’

60. Configuration ‘options’

61. Configuration ‘options’

62. Configuration ‘options’

63. Configuration ‘options’
Pro-tip: Other configuration options

64. Configuration ‘options’
Pro-tip: Other configuration options
app.file_dependencies ‘app/controllers/curves_controller.rb’ => ‘app/controllers/main_controller.rb’

65. Configuration ‘options’
Pro-tip: Other configuration options
app.file_dependencies ‘app/controllers/curves_controller.rb’ => ‘app/controllers/main_controller.rb’
app.vendor_project

66. The Soul
Console REPL - Read Evaluate Print Loop

67. The Soul
Console REPL - Read Evaluate Print Loop
You feel in-control

68. The Soul
Console REPL - Read Evaluate Print Loop
You feel in-control

69. The Soul
Console REPL - Read Evaluate Print Loop
You feel in-control
An excellent in-browser demo of REPL: https://www.pieceable.com/rubymotion-console

70. Build Process

71. Build Process
COMPILING

72. Build Process
COMPILING LINKING

73. Build Process
COMPILING LINKING
PACKAGING

74. Build Process
COMPILING LINKING
PACKAGING CODE SIGN

75. Testing your code

76. Testing your code
Like Rails, RubyMotion comes bundled with ‘RSpec’ like framework ‘MacBacon’

77. Testing your code
Like Rails, RubyMotion comes bundled with ‘RSpec’ like framework ‘MacBacon’
<motion_root>/spec/main_spec.rb

78. Testing your code
Like Rails, RubyMotion comes bundled with ‘RSpec’ like framework ‘MacBacon’
<motion_root>/spec/main_spec.rb
$ rake spec

79. Testing your code
Like Rails, RubyMotion comes bundled with ‘RSpec’ like framework ‘MacBacon’
<motion_root>/spec/main_spec.rb
$ rake spec
‘MacBacon’ has almost all ‘syntactic sugar’ that you are accustomed in RSpec:

80. Testing your code
Like Rails, RubyMotion comes bundled with ‘RSpec’ like framework ‘MacBacon’
<motion_root>/spec/main_spec.rb
$ rake spec
‘MacBacon’ has almost all ‘syntactic sugar’ that you are accustomed in RSpec:
- Assertions

81. Testing your code
Like Rails, RubyMotion comes bundled with ‘RSpec’ like framework ‘MacBacon’
<motion_root>/spec/main_spec.rb
$ rake spec
‘MacBacon’ has almost all ‘syntactic sugar’ that you are accustomed in RSpec:
- Assertions
- Matchers

82. Testing your code
Like Rails, RubyMotion comes bundled with ‘RSpec’ like framework ‘MacBacon’
<motion_root>/spec/main_spec.rb
$ rake spec
‘MacBacon’ has almost all ‘syntactic sugar’ that you are accustomed in RSpec:
- Assertions
- Matchers
- before/after blocks

83. Testing your code
Like Rails, RubyMotion comes bundled with ‘RSpec’ like framework ‘MacBacon’
<motion_root>/spec/main_spec.rb
$ rake spec
‘MacBacon’ has almost all ‘syntactic sugar’ that you are accustomed in RSpec:
- Assertions
- Matchers
- before/after blocks
View testing:

84. Testing your code
Like Rails, RubyMotion comes bundled with ‘RSpec’ like framework ‘MacBacon’
<motion_root>/spec/main_spec.rb
$ rake spec
‘MacBacon’ has almost all ‘syntactic sugar’ that you are accustomed in RSpec:
- Assertions
- Matchers
- before/after blocks
View testing:
- Loading the nib/xib/storyboard file

85. Continuos Integration
Jenkins setup on mac-mini App Store
WebHook Push
Setup for local deployment and testing

86. Using External Libraries

87. Using External Libraries
RubyGems

88. Using External Libraries
Objective-C
RubyGems
Project

89. Using External Libraries
Objective-C
RubyGems
Project
Native-C

90. Using External Libraries
Objective-C
RubyGems
Project
Native-C CocoaPods

91. RubyGems

92. RubyGems
Normal RubyGems won’t work

93. RubyGems
Normal RubyGems won’t work
Motion::Project::App.setup do |app|
# Load files from gem
end

94. RubyGems
Normal RubyGems won’t work
Motion::Project::App.setup do |app|
# Load files from gem
end
Use Bundler

95. RubyGems
Normal RubyGems won’t work
Motion::Project::App.setup do |app|
# Load files from gem
end
source :rubygems
gem 'rake' require ‘bundler’
Use Bundler gem 'bubble-wrap' Bundler.require
gem 'motion-cocoapods'
gem 'motion-redgreen' Rakefile
Gemfile

96. RubyGems contd...

97. RubyGems contd...
Bubblewrap
teacup
sugarcube
formotion
Nitron
motion-redgreen
motion-logger
MotionModel
NativeJSBridge
SegmentTab

98. Using Obj-C code

99. Using Obj-C code
Statically Compiled
app.vendor_project(
“vendor/project-name”, #should have both .h and .m file
:static
)

100. Using Obj-C code
Statically Compiled
app.vendor_project(
“vendor/project-name”, #should have both .h and .m file
:static
)

101. Using Obj-C code
Statically Compiled
app.vendor_project(
“vendor/project-name”, #should have both .h and .m file
:static
)
XCode project:
app.vendor_project(
“vendor/project-name”,
:xcode,
:xcodeproj => “project-name.xcodeproj”,
:target => “project-name”,
:products => [“libproject-name.a”],
:headers_dir => “project-name”
)

102. Using native C code

103. Using native C code
Basic Types in C Ruby data types
(bool, char, int, long, float, double) (true/false, Fixnum, Bignum, Float)

104. Using native C code
Basic Types in C Ruby data types
(bool, char, int, long, float, double) (true/false, Fixnum, Bignum, Float)
C Complex Data Structures

105. Using native C code
Basic Types in C Ruby data types
(bool, char, int, long, float, double) (true/false, Fixnum, Bignum, Float)
No corresponding Ruby Data
C Complex Data Structures
Types

106. Using native C code
Basic Types in C Ruby data types
(bool, char, int, long, float, double) (true/false, Fixnum, Bignum, Float)
No corresponding Ruby Data
Types
C Complex Data Structures

107. Using native C code
Basic Types in C Ruby data types
(bool, char, int, long, float, double) (true/false, Fixnum, Bignum, Float)
No corresponding Ruby Data
Types
C Complex Data Structures
BridgeSupport

108. Using native C code
Basic Types in C Ruby data types
(bool, char, int, long, float, double) (true/false, Fixnum, Bignum, Float)
No corresponding Ruby Data
Types
C Complex Data Structures RubyMotion
BridgeSupport

109. CocoaPods

110. CocoaPods
is a dependency manager for Obj-C projects

111. CocoaPods
is a dependency manager for Obj-C projects
sudo gem install cocoapods

112. CocoaPods
is a dependency manager for Obj-C projects
sudo gem install cocoapods
pod setup # this may not be required for everyone, it never worked for me

113. CocoaPods
is a dependency manager for Obj-C projects
sudo gem install cocoapods
pod setup # this may not be required for everyone, it never worked for me
https://github.com/CocoaPods/Specs - lists all the pods

114. CocoaPods
is a dependency manager for Obj-C projects
sudo gem install cocoapods
pod setup # this may not be required for everyone, it never worked for me
https://github.com/CocoaPods/Specs - lists all the pods
It has been integrated with RubyMotion which comes as a gem

115. CocoaPods
is a dependency manager for Obj-C projects
sudo gem install cocoapods
pod setup # this may not be required for everyone, it never worked for me
https://github.com/CocoaPods/Specs - lists all the pods
It has been integrated with RubyMotion which comes as a gem
sudo gem install motion-cocoapods

116. CocoaPods
is a dependency manager for Obj-C projects
sudo gem install cocoapods
pod setup # this may not be required for everyone, it never worked for me
https://github.com/CocoaPods/Specs - lists all the pods
It has been integrated with RubyMotion which comes as a gem
sudo gem install motion-cocoapods
Include it in your Rakefile:
require ‘moion-cocoapods’
Motion::Project::App.setup do |app|
# ...
app.pods do
dependency 'JSONKit'
dependency 'iActiveRecord'
end
end

117. Long way to go !

118. Long way to go !
RM is only ~4 months old

119. Long way to go !
RM is only ~4 months old
Something it lacks:
- Debugger (but REPL kind of makes it easy)
- Some dynamic code doesn’t work (but hey !!!)

120. RM applications on AppStore

121. RM applications on AppStore
Everclip

122. RM applications on AppStore
Everclip
Cabify

123. RM applications on AppStore
Everclip
Cabify
Survey

124. RM applications on AppStore
Everclip
Cabify
Survey
http://signup.bigdayreminder.com/

125. RM applications on AppStore
Everclip
Cabify
Survey
http://signup.bigdayreminder.com/
http://jukely.com/

126. THANK YOU

127. One more thing !
15% discount
toamitkumar@gmail.com