Laziness-Driven Development in iOS - Mobile Makers Chicago, April 2016

Spring 2016 edition of my talk on how Laziness is secretly the best way to code.

Links galore at the end!

Transcript

1. Laziness-Driven Development in iOS Mobile Makers Chicago | April 2016 | by Ellen Shapiro spothero.com | justhum.com | designatednerd.com | @designatednerd
2. What is Laziness- Driven Development?
3. The laziness long game.
4. What is lazy, but is NOT Laziness-Driven Development?
5. Copy Pasta
6. Code without tests
7. Code which is fast to write, but impossible to read
8. Using libraries for every possible task
9. What is Laziness-Driven Development? » Smart reuse of code » Clear, Readable code » Removal of Stringly-typed code » Making smart decisions today to save yourself time and heartache tomorrow
10. The primary philosophy of Laziness-Driven Development:
11. Eventually, You're going to screw something up
12. only screw it up once. Then, you only have to fix it once.
13. Introductory Laziness-Driven development: Inheritance & MV*
14. Keep code separated by its purpose
15. Keep code with the same purpose centralized
16. Aren't those just Best Practices?
17. YES
18. YEs, but they are only the beginning
19. Beginning Laziness-Driven development: Constants, Structs and Enums
20. Stringly-typed code Sucks
22. espeshuly if u cant spel... (this is from just one repo)
23. It's the worst
24. String Constants: The Cure For Speling Problums
25. Before:
26. After:
27. Lazy Swift Ninja:
28. constants: Not just for strings self.viewWidth = 74; vs. self.viewWidth = kProfileViewWidth;
29. Enums: Even lazier constants
36. Beginning Laziness-Driven development: Comment And Name Clearly
37. readability
38. "programs must be written for people to read, and only incidentally for machines to execute."
39. Variable naming BAD: UIView *v var v = UIView() CGPoint pt var pt = CGPoint(1, 1) BETTER: UIView *profileView var profileView = UIView() CGPoint profileOrigin var profileOrigin = CGPoint(1, 1)
40. Method Naming Objective-C: extremelyLongAndDescriptiveMethodOnLabel:label withParameter:parameter andCompletionBlock:completion Swift: shortButClearMethodOnLabel(label, param, completion)
42. Benefits of clear naming
46. Some people say: "Comments Lie, Code Doesn't"
47. If you update code without updating comments, you're doing it wrong
48. //TODO: Write better comments
49. What < Why
50. Leave The Campsite Code cleaner than you found it
51. the goal of good comments and clear naming is the same: Future laziness for you
52. Beginning Laziness-Driven development: Unit Testing
53. Testing stuff manually is a pain. (Repeat ad nauseam until it's fixed)
54. Remember: Your computer is an awesome robot you can use to do your evil bidding
58. Intermediate Laziness-Driven development: Categories & Extensions
59. Adding functionality to existing objects (and also to structs in Swift)
60. Objective-C: Categories UIView+XYZApp: - (void)xyz_circleify { self.layer.cornerRadius = CGRectGetWidth(self.frame) / 2; self.clipsToBounds = YES; }
61. Watch for method name collsions
62. Swift: Extensions MyViewExtension: extension UIView { public func xyz_circleify() { layer.cornerRadius = CGRectGetWidth(frame) / 2 clipsToBounds = true } }
63. Watch for method name collsions even in Swift
64. Intermediate Laziness-Driven development: Laziness-Enhancing Tools
65. Alcatraz: Xcode plugins for all!
66. Plugins Before Alcatraz » Download project » Build, run, install, » Restart Xcode, » Do the hokey pokey and turn yourself about. » Uninstall by hunting down obscure folder and then forgetting what the hell you were doing in there.
67. Plugins AFTER Alcatraz » Push button, install plugin. » Push other button to see plugin page. » Search plugins easily. » Push button, uninstall plugin. !
68. Laziness-Enhancing Plugins
69. VVDocumenter
70. xTODO
71. BBFullIssue Navigator
72. SCXcodeMiniMap
74. A place for ideas
75. Get a better idea of what is simple and what is not
76. MOGenerator - Make Core Data less painful
77. MOGenerator Kills Stringly-Typed Code just to watch it die
78. Lazier Code with MOGenerator
79. Advanced Laziness-Driven development: UI Testing
80. KIF
81. KIF
82. Xcode 7 UI TESTING
83. All UI testing
84. UI Testing Gotchas
85. Advanced Laziness-Driven development: Adopting laziness techniques from other languges
86. Android
89. Figure out how to take the theory and use it in an iOS-friendly way
90. Caution: Take care that you're bringing things over as supplements.
91. Don't try to force a new language or platform to fit what you already know
92. Advanced Laziness-Driven development: Writing Your own Laziness-Enhancing Tools
93. When Should You write Your own tools?
95. (Achtung! shameless self-promotion)
96. My Experience Writing Tools
97. Cat2Cat Asset Catalog To Category Instead of writing: [UIImage imageNamed:@"My Image Name"]; you can write: [UIImage ac_My_Image_Name];
98. How is this lazier?
100. XcodeautoBasher
102. in conclusion » Centralize your code, make it easy to read, and keep it separated by purpose, so it's easy to fix. » Get rid of stringly-typed code so it's harder to break in the first place. » Use the tools other people have built to enhance your laziness, or build new tools yourself. » Best practices are secretly the lazy way to code.
103. Questions?
104. Thank you!
105. Links » Alcatraz: http://alcatraz.io/ » Cocoa Controls: https://www.cocoacontrols.com/ » Swift In Practice: https://developer.apple.com/ videos/play/wwdc2015-411/ » CountableIntEnum: https://gist.github.com/ LoganWright/c8a26b1faf538e40f747 » Swift API Design Guidelines: https://swift.org/ documentation/api-design-guidelines
106. Code Generation Tools » MOGenerator: https://github.com/rentzsch/ mogenerator » Cat2Cat: https://github.com/vokal/Cat2Cat » objc codegenutils: https://github.com/square/objc- codegenutils/
107. Alcatraz Plugins » https://github.com/vokal/XcodeAutoBasher » https://github.com/onevcat/VVDocumenter-Xcode » https://github.com/trawor/XToDo » https://github.com/neonichu/BBUFullIssueNavigator » https://github.com/stefanceriu/SCXcodeMiniMap
108. image credits » Luca Nebuloni, Pasta with finocciona: https:// www.flickr.com/photos/nebulux/10708289086 » Tom Bech, Eurasian Wolf: https://www.flickr.com/ photos/viatorius/9358589025 » Michael D Beckwith, The Leeds Library: https:// www.flickr.com/photos/118118485@N05/16438065636/