Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Code reviewing in iOS app development
Search
yashigani
May 20, 2015
Programming
9
4.5k
Code reviewing in iOS app development
Code reviewing in iOS app development
@Kansai Mobile Conference #2
yashigani
May 20, 2015
Tweet
Share
More Decks by yashigani
See All by yashigani
Hatena Engineer Seminar #10
yashigani
0
2.2k
Dependency Injection in iOS Apps
yashigani
2
470
Multiple layout with UITableViewCell
yashigani
1
3.5k
Lazy stored property
yashigani
3
2.1k
Useful 3 techniques developing in iOS Apps
yashigani
0
1.5k
Introduction to WebKitPlus
yashigani
2
2.3k
Types in Swift
yashigani
5
2.3k
Swift with apps by Hatena
yashigani
13
29k
What's new WebKit.framework
yashigani
2
1.5k
Other Decks in Programming
See All in Programming
ソフトウェアエンジニアの成長
masuda220
PRO
12
2.1k
CloudNativePGを布教したい
nnaka2992
0
120
はじめての Go * WASM *OCR
sgash708
1
110
CDK開発におけるコーディング規約の運用
yamanashi_ren01
2
260
Lambdaの監視、できてますか?Datadogを用いてLambdaを見守ろう
nealle
2
500
React 19アップデートのために必要なこと
uhyo
8
1.6k
Jasprが凄い話
hyshu
0
180
Serverless Rust: Your Low-Risk Entry Point to Rust in Production (and the benefits are huge)
lmammino
1
160
Rubyで始める関数型ドメインモデリング
shogo_tksk
0
140
技術を改善し続ける
gumioji
0
180
Introduction to kotlinx.rpc
arawn
0
770
「個人開発マネタイズ大全」が教えてくれたこと
bani24884
1
280
Featured
See All Featured
Save Time (by Creating Custom Rails Generators)
garrettdimon
PRO
29
1k
Designing for Performance
lara
605
68k
The Straight Up "How To Draw Better" Workshop
denniskardys
232
140k
Stop Working from a Prison Cell
hatefulcrawdad
268
20k
Rails Girls Zürich Keynote
gr2m
94
13k
Site-Speed That Sticks
csswizardry
4
410
How to Ace a Technical Interview
jacobian
276
23k
Building a Scalable Design System with Sketch
lauravandoore
461
33k
What’s in a name? Adding method to the madness
productmarketing
PRO
22
3.3k
Large-scale JavaScript Application Architecture
addyosmani
511
110k
Embracing the Ebb and Flow
colly
84
4.6k
Intergalactic Javascript Robots from Outer Space
tanoku
270
27k
Transcript
J04ΞϓϦͷίʔυϨϏϡʔ Ͱ࠷ۙؾʹͳΔͱ͜Ζ @yashigani ؔϞόΠϧΞϓϦݚڀձ#2
yashigani id:yashigani_w @yashigani Mobile Application Engineer http://yashigani.hatenablog.com Hatena
https://flic.kr/p/b3j2n2 ίʔυϨϏϡʔ ͯ͠·͔͢ʁ
ͳΜ͔ωλ୳ͯͨ͠ΜͰ͚͢Ͳಛʹ͜Εͬ ͯͷ͕ແͯ͘ɼ͋ΕʁίʔυϨϏϡʔͱ ͔ΊͬͪΌҙࣝߴͦ͏Ͱ͍͍Μ͡ΌͶʁͬ ͓ͯͬͯ·ͱΊͯΈͨΜͰ͢Αɽͦͨ͠ ΒίʔυϨϏϡʔͷ؍ͬͯΑ͘ߟ͑ͨΒ ΞϓϦέʔγϣϯΛઃܭ͢Δͱ͖ʹؾΛ ͚ͭΔ͖ϙΠϯτ·ͱΊΈ͍ͨͳײ͡ ͳΜͰ͢ΑɽͳΜͰͦ͏͍͏͜ͱ͢ΜͰ ͚͢ͲɼίʔυϨϏϡʔ͓͍ͬͯͯͨ͠ ΄͏͕ͳΜ͔͋Γ͕ͨΈ͕ߴ͍ΜͰࠓ
ίʔυϨϏϡʔͷͱ͍͏͜ͱʹͳΓ·͢ɽ
TUPSZCPBSEؔ࿈
͜ΕstoryboardͰͰ͖·ͤΜ͔ʁ • ࡉ͔͍viewͷઃఆͰ͖Δ͚ͩstoryboardͰ݁͞ ͤͨ΄͏ָ͕ • ࢄ͢Δͱ͋ͱͰ͠ʹ͍͘ • ϨΠΞτͷίʔυجຊॻ͔ͳ͍ • (AutoLayoutͷϨϏϡʔࠜੑͰΔ)
storyboardͰઃఆͰ͖ͳ͍ • viewDidLoadͱ͔awakeFromNibͰೖΕΔͷ! • propertyͷdidSetΛͬͨ΄͏͕៉ྷ • Objective-C?ૣ͘غͯͯ͘Ε
class ViewController: UIViewController { @IBOutlet weak var textView: UITextView! {
didSet { textView.textContainerInset = UIEdgeInsets(top: 16, left: 16, bottom: 16, right: 16) } } }
IBInspectableΛઃఆ͢Δ • ઃఆ͠ͳ͍ཧ༝ͳ͍ • ΠϚΠν͍ʹ͔ͬͨ͘ΧελϜϏϡʔͷ࠶ར༻ੑ ͕ΊͬͪΌ্͕Γ·͢
@IBDesignable class BorderedLabel: UILabel { @IBInspectable var borderColor: UIColor? {
get { return UIColor(CGColor: self.layer.borderColor) } set { self.layer.borderColor = newValue?.CGColor ?? nil } } @IBInspectable var borderWidth: CGFloat = 1.0 { didSet { layer.borderWidth = borderWidth } } @IBInspectable var cornerRadius: CGFloat = 0.0 { didSet { layer.cornerRadius = cornerRadius layer.masksToBounds = cornerRadius > 0.0 } } }
@IBDesignable class BorderedLabel: UILabel { @IBInspectable var borderColor: UIColor? {
get { return UIColor(CGColor: self.layer.borderColor) } set { self.layer.borderColor = newValue?.CGColor ?? nil } } @IBInspectable var borderWidth: CGFloat = 1.0 { didSet { layer.borderWidth = borderWidth } } @IBInspectable var cornerRadius: CGFloat = 0.0 { didSet { layer.cornerRadius = cornerRadius layer.masksToBounds = cornerRadius > 0.0 } } }
7JFX$POUSPMMFSؔ࿈
͜ͷpropertyݮΒͤ·ͤΜ͔ʁ • stored propertyঢ়ଶͳͷͰͰ͖Δ͚ͩݮΒͨ͠΄ ͏͕Α͍ • computed propertyผ • closureͰΩϟϓνϟ͢Δͱ͔ͰͳΜͱ͔Ͱ͖ͳ͍͔
UITableViewDataSource ׂͰ͖·ͤΜ͔ʁ • UITableViewDataSourceׂ͍͢͠ͷͰૣΊʹ ׂ͓ͯ͘͠ • NSObjectstoryboard͔ΒೖͰ͖Δ
UITableViewDataSource ׂͰ͖·ͤΜ͔ʁ • UITableViewDataSourceׂ͍͢͠ͷͰૣΊʹ ׂ͓ͯ͘͠ • NSObjectstoryboard͔ΒೖͰ͖Δ
?ΑΓ! • viewDidLoadprepareForSegueͰॳظԽ͢ΔΑ͏ ͳpropertyOptionalʹ͕ͪ͠ • OptionalΑΓImplicitly Unwrapped Optionalͷ΄͏ ͕͍͍͢ •
Ͳ͏ͤແ͍ͱಈ͔ͳ͍Μ͔ͩΒૣ͘Ϋϥογϡͨ͠ ΄͏͕ಘ
4XJGUؔ࿈
computed property͑·ͤΜ͔ʁ • ఆͦͷΦϒδΣΫτͷঢ়ଶ͔Βࢉग़Ͱ͖ΔΛ ฦ͢ϝιουcomputed propertyʹ • υϝΠϯΛด͡ࠐΊΒΕΔ • ͋ͱ()͕͍Βͳ͘ͳΔͷͰྑ͍
enum͑·ͤΜ͔ʁ • ϓϦϛςΟϒͳઐ༻ͷΦϒδΣΫτͰঢ়ଶΛ ཧ͍͍ͯ͠ͷখֶੜ·Ͱ • UITableViewͷsectionͱ͔(Raw ValuesΛ͏ͱΑ͍) • enumʹด͡ࠐΊΔ •
ྫ͑section headerͷλΠτϧͱ͔ • Associated Valuesߟྀ͢Δ
lazyͰOptionalΛ֎͢ • ࣗͷproperty Aʹґଘ͢Δproperty Bͷ • B͕ඞཁͳͱ͖ʹAଘࡏ͢Δͱ͖ɼBΛlazyʹ͢ Δ͜ͱͰOptionalΛ֎͢͜ͱ͕Ͱ͖Δ
class BookmarkManager { let manager: UserManager init(_ manager: UserManager) {
self.manager = manager } } class ViewController: UIViewController { var userManager: UserManager! var bookmarkManager: BookmarkManager! override func viewDidLoad() { bookmarkManager = BookmarkManager(userManager) } }
class BookmarkManager { let manager: UserManager init(_ manager: UserManager) {
self.manager = manager } } class ViewController: UIViewController { var userManager: UserManager! lazy var bookmarkManager: BookmarkManager = BookmarkManager(self.userManager) }
ςετͰ!ΛΘͳ͍ • ςετ͕ࣦഊ͢ΔΜ͡Όͳͯ͘མͪΔ • CIͰٽ͘ • ࠷ѱͷঢ়ଶ • ͕औಘͰ͖ΔͣͰOptional Chainͱ͔҆શͳ
खஈΛ͏
let bookmark: Bookmark = ... XCTAssertNotNil(bookmark.title, "...") XCTAssertEqual(bookmark.title!, "ؔ ϞόΠϧΞϓϦݚڀձ#2",
"...")
let bookmark: Bookmark = ... XCTAssertNotNil(bookmark.title, "...") XCTAssertEqual(bookmark.title ?? "",
"ؔϞόΠϧΞϓϦݚڀձ#2", "...")
·ͱΊ
• storyboard͍ͯ͠΄͍͠ • View Controllerͱʹ͔͘ଠΒͳ͍Α͏ʹ͢Δ • Swiftͱʹ͔͘࠷ߴ
͋Γ͕ͱ͏͍͟͝·ͨ͠