2 Tools An iOS Developer Needs To Know

Transcript

1. 2 TOOLS AN iOS developer NEEDS TO KNOW Felizia Bernutz – 28.11.2018 – TH Nürnberg
2. learn about 2 tools we use at our daily work as iOS developers
4. SWIFTLINT & FASTLANE
6. SWIFTLINT
7. A tool to enforce Swift style and conventions — SwiftLint2 2 https://github.com/realm/SwiftLint
8. Why?
9. ...because code style matters!
10. ...because code style matters, right?
11. Watch the talk4 from JP Simard from Realm ON THE IDEAS BEHIND SWIFTLINT 4 https://academy.realm.io/posts/slug-jp-simard-swiftlint/
12. How?
13. #1
14. INSTALLATION ▸ With HomeBrew (global level) brew install swiftlint ▸ With CocoaPods (project level) pod 'SwiftLint' ▸ Install CocoaPods with sudo gem install cocoapods
15. #2
16. Add new RUN SCRIPT PHASE
18. #3
19. Define RULES1 1 https://github.com/realm/SwiftLint/blob/master/Rules.md
20. Type of Rules 1. Stylistic Rules
21. 1. STYLISTIC RULES attributes // before @IBAction func showSomething() { ... }
22. 1. STYLISTIC RULES attributes // before @IBAction func showSomething() { ... } // after @IBAction func showSomething() { ... }
23. 1. STYLISTIC RULES vertical_parameter_alignment // before func buy(bananas: [Banana], withPlasticBag: Bool, isBio: Bool) { print("buy banana") }
24. 1. STYLISTIC RULES vertical_parameter_alignment // after func buy(bananas: [Banana], withPlasticBag: Bool, isBio: Bool) { print("buy banana") }
25. Type of Rules 1. Stylistic Rules 2. Hygenic Rules
26. 2. HYGENIC RULES ▸ File length ▸ Line length ▸ Body length
27. Type of Rules 1. Stylistic Rules 2. Hygenic Rules 3. Convention Rules
28. 3. CONVENTION RULES legacy_cggeometry_functions // before let isInfinite = CGRectIsInfinite(rect)
29. 3. CONVENTION RULES legacy_cggeometry_functions // before let isInfinite = CGRectIsInfinite(rect) // after let isInfinite = rect.isInfinite
30. Type of Rules 1. Stylistic Rules 2. Hygenic Rules 3. Convention Rules 4. Code Smells
31. 4. CODE SMELLS ▸ force unwrap ▸ force cast ▸ force try ▸ number of function parameters
32. 4. CODE SMELLS force_unwrapping // before navigationController!.pushViewController(loginVC, animated: true)
33. 4. CODE SMELLS force_unwrapping // before navigationController!.pushViewController(loginVC, animated: true) // after guard let navController = navigationController else { return } navController.pushViewController(loginVC, animated: true)
34. Type of Rules 1. Stylistic Rules 2. Hygenic Rules 3. Convention Rules 4. Code Smells 5. Cyclomatic Complexity
35. 5. CYCLOMATIC COMPLEXITY func complexFunction() { let i = 0 let array = [] if true { if i != 0 { if false {} } else { if !array.isEmpty && false { for element in array { guard i >= 0 && i < 42 else { return } if i >= 42 { switch i { case 42: break case 43: break case _ where i >= 44: print(i) default: break } } } } } } }
36. Type of Rules 1. Stylistic Rules 2. Hygenic Rules 3. Convention Rules 4. Code Smells 5. Cyclomatic Complexity
37. AND NOW Live Demo
39. https://twitter.com/KrauseFx/status/1055812829234782208
40. fastlane3 is a tool for iOS and Android developers to automate tedious tasks 3 https://github.com/fastlane/fastlane
42. WHY FASTLANE?
43. WHY FASTLANE? ▸ saves time
44. WHY FASTLANE? ▸ saves time ▸ open source
45. WHY FASTLANE? ▸ saves time ▸ open source ▸ easy setup
46. WHY FASTLANE? ▸ saves time ▸ open source ▸ easy setup ▸ integrate with CI systems
47. CONTINOUS INTEGRATION
48. How?
49. #1
50. INSTALLATION ▸ Using RubyGems sudo gem install fastlane -NV ▸ Using Homebrew brew cask install fastlane
51. #2
52. SET UP Fastfile
53. desc 'Runs all tests' lane :test do run_tests( device: 'iPhone X', scheme: 'Testing' ) end
54. #3
55. And then... fastlane test
57. [22:22:32]: ▸ ✓ testSelectRowShouldSetCorrectSelectedSetting (0.001 seconds) [22:22:32]: ▸ Executed 32 tests, with 0 failures (0 unexpected) in 0.162 (0.182) seconds [22:22:33]: ▸ 2018-11-19 22:22:33.198 xcodebuild[53785:4181855] [MT] IDETestOperationsObserverDebug: 24.020 elapsed -- Testing started completed. [22:22:33]: ▸ 2018-11-19 22:22:33.198 xcodebuild[53785:4181855] [MT] IDETestOperationsObserverDebug: 0.000 sec, +0.000 sec -- start [22:22:33]: ▸ 2018-11-19 22:22:33.198 xcodebuild[53785:4181855] [MT] IDETestOperationsObserverDebug: 24.020 sec, +24.020 sec -- end [22:22:33]: ▸ Test Succeeded +--------------------+----+ | Test Results | +--------------------+----+ | Number of tests | 32 | | Number of failures | 0 | +--------------------+----+ +------+---------------------+-------------+ | fastlane summary | +------+---------------------+-------------+ | Step | Action | Time (in s) | +------+---------------------+-------------+ | 1 | Verifying fastlane | 0 | | | version | | | 2 | number_of_commits | 0 | | 3 | run_tests | 62 | +------+---------------------+-------------+ [22:22:39]: fastlane.tools finished successfully ! ✔ ~/develop/_private/cineaste-ios [master|⚑ 11] 22:22 $
59. Without fastlane it would be xcodebuild \ -workspace Minions.xcworkspace \ -scheme "Testing" \ -sdk iphonesimulator \ -destination 'platform=iOS Simulator,name=iPhone X' \ test
60. AND NOW Live Demo
61. WHAT WE @ADORSYS USE FASTLANE FOR?
62. WHAT WE @ADORSYS USE FASTLANE FOR? ▸ run tests
63. WHAT WE @ADORSYS USE FASTLANE FOR? ▸ run tests ▸ build app
64. WHAT WE @ADORSYS USE FASTLANE FOR? ▸ run tests ▸ build app ▸ make screenshots
65. WHAT WE @ADORSYS USE FASTLANE FOR? ▸ run tests ▸ build app ▸ make screenshots ▸ upload app to Testflight, AppStore or adorsys AppCatalog
66. THANKS Questions?
67. Felizia Bernutz ▸ @fbernutz ▸ @felibe444 ▸ ! iOS dev @adorsys 28.11.2018 – TH Nürnberg