Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Handling rich text in Swift

Avatar for Kishikawa Katsumi Kishikawa Katsumi
August 20, 2016
Programming
17
6.7k

Handling rich text in Swift

Handling rich text
in Swift
iOSDC Japan 2016
Avatar for Kishikawa Katsumi

Kishikawa Katsumi

August 20, 2016
Tweet

More Decks by Kishikawa Katsumi

See All by Kishikawa Katsumi
iOSDC 2024 SMBファイル共有をSwiftで実装する
Avatar for Kishikawa Katsumi kishikawakatsumi
1
220
Enhancing Applications with Accessibility API
Avatar for Kishikawa Katsumi kishikawakatsumi
3
4.1k
Mastering SwiftSyntax
Avatar for Kishikawa Katsumi kishikawakatsumi
4
6.2k
My SwiftData Review
Avatar for Kishikawa Katsumi kishikawakatsumi
7
1.5k
Swift Expression Macros: a practical introduction
Avatar for Kishikawa Katsumi kishikawakatsumi
3
2k
Xcode Cloudの評価
Avatar for Kishikawa Katsumi kishikawakatsumi
2
1.3k
Regular expressions basics/正規表現の基本
Avatar for Kishikawa Katsumi kishikawakatsumi
7
770
家のいろいろな数値を計測する
Avatar for Kishikawa Katsumi kishikawakatsumi
4
2.3k
GitHub Actionsでテストの結果をわかりやすく表示する
Avatar for Kishikawa Katsumi kishikawakatsumi
1
1.2k

Other Decks in Programming

See All in Programming
マイコンでもRustのtestがしたい/KernelVM Kansai 11
Avatar for Toshifumi NISHINAGA tnishinaga
0
880
ビカム・ア・コパイロット
Avatar for Kento.Yamada ymd65536
1
110
Vibe Coding の話をしよう
Avatar for schroneko schroneko
14
3.8k
一緒に働きたくなるプログラマの思想 #QiitaConference
Avatar for mu_zaru mu_zaru
81
21k
Browser and UI #2 HTML/ARIA
Avatar for ken7253 ken7253
2
180
LRパーサーはいいぞ
Avatar for ydah ydah
7
1.3k
ぽちぽち選択するだけでOSSを読めるVSCode拡張機能
Avatar for Kazuya Kurihara ymbigo
14
6.3k
REALITY コマンド作成チュートリアル
Avatar for にしうり らく nishiuriraku
0
120
flutter_kaigi_mini_4.pdf
Avatar for Hiroki Nobuta nobu74658
0
150
今話題のMCPサーバーをFastAPIでサッと作ってみた
Avatar for Yuuki Shimizu yuukis
0
130
iOSアプリで測る！名古屋駅までの 方向と距離
Avatar for Ryu-nakayama ryunakayama
0
160
カオスに立ち向かう小規模チームの装備の選択〜フルスタックTSという装備の強み _ 弱み〜/Choosing equipment for a small team facing chaos ~ Strengths and weaknesses of full-stack TS~
Avatar for 株式会社ビットキー / Bitkey Inc. bitkey
1
140

Featured

See All Featured
Helping Users Find Their Own Way: Creating Modern Search Experiences
Avatar for Dan Newman danielanewman
29
2.6k
For a Future-Friendly Web
Avatar for Brad Frost brad_frost
177
9.7k
Designing for humans not robots
Avatar for Tammie Lister tammielis
253
25k
The MySQL Ecosystem @ GitHub 2015
Avatar for Sam Lambert samlambert
251
12k
Thoughts on Productivity
Avatar for Jon Yablonski jonyablonski
69
4.6k
Rebuilding a faster, lazier Slack
Avatar for samanthasiow samanthasiow
81
9k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
Avatar for Morgane Peng morganepeng
129
19k
Mobile First: as difficult as doing things right
Avatar for Swwweet swwweet
223
9.6k
JavaScript: Past, Present, and Future - NDC Porto 2020
Avatar for David Neal reverentgeek
48
5.4k
Intergalactic Javascript Robots from Outer Space
Avatar for Vicent Martí tanoku
271
27k
A better future with KSS
Avatar for Kyle Neath kneath
239
17k
Art, The Web, and Tiny UX
Avatar for Lynn Fisher lynnandtonic
298
20k

Transcript

  1. Handling rich text in Swift iOSDC Japan 2016 Katsumi Kishikawa

    [email protected]

  2. Katsumi Kishikawa Realm Inc. [email protected]

  3. [email protected]

  4. [email protected]

  5. [email protected]

  6. [email protected]

  7. Agenda ˖ J04ךذؗأزٖ؎،ؐزחאְג ˖ ة؎هؚٓؿ؍ך㛇燉 ˖ 5FYU,JUך㛇燉ה䘔欽 [email protected]

  8. iOS 7Ҏ߱ͷςΩετϨΠΞ΢τ [email protected]

  9. TextKit [email protected]

  10. TextKitͱ͸ ˖ 넝鸞זٌتٝذؗأزٖ؎،ؐز٥ٖٝت ؚٔٝؒٝآٝ ˖ $PSF5FYUד⡲׵׸גְ׷ ˖ 6*,JUהך窟さ [email protected] https://developer.apple.com/library/ios/documentation/StringsTextFonts/Conceptual/TextAndWebiPhoneOS/CustomTextProcessing/CustomTextProcessing.html

  11. UILabel [email protected]

  12. [email protected] UILabelΛී௨ʹ࢖͏

  13. [email protected] ώϥΪϊͱγεςϜϑΥϯτ UIFont(name: "HiraginoSans-W3", size: 32) UIFont.systemFontOfSize(32)

  14. [email protected] ώϥΪϊͱγεςϜϑΥϯτ

  15. [email protected] ώϥΪϊͱγεςϜϑΥϯτ

  16. [email protected] General Header

  17. [email protected] ΞϧϑΝϕοτΛؚ·ͳ͍৔߹

  18. ߦͷߴ͞͸ԿͰܾ·Δ͔ [email protected]

  19. [email protected] Font metrics https://developer.apple.com/library/mac/documentation/TextFonts/Conceptual/CocoaTextArchitecture/FontHandling/FontHandling.html

  20. [email protected] Font metrics https://developer.apple.com/library/mac/documentation/TextFonts/Conceptual/CocoaTextArchitecture/FontHandling/FontHandling.html

  21. [email protected] Font metrics

  22. [email protected] Font metrics Baseline X-Height Cap height Ascent Descent

  23. [email protected] ώϥΪϊ͸ಛघͳϝτϦΫεΛ࣋ͭ

  24. [email protected] ʢࢀߟʣNoto Sans CJK JP

  25. let label = UILabel(frame: view.bounds) label.backgroundColor = ... label.textColor =

    ... label.font = ... label.text = text ... label.sizeToFit() label.frame.size.height += ceil(abs(label.font.descender * 2)) [email protected] ্ԼʹDescentΛิ͏

  26. [email protected] ্ԼʹDescentΛิ͏

  27. [email protected] ্ԼʹDescentΛิ͏

  28. [email protected] ΦϦδφϧͱൺֱ

  29. • ώϥΪϊΛ໌ࣔతʹࢦఆ͠ͳ͍ • γεςϜϑΥϯτΛ࢖͏ • σβΠϯࢦࣔॻͳͲͰɺώϥΪϊ͸͍͍ͨͯγε ςϜϑΥϯτΛҙਤ͍ͯ͠Δ͸ͣ • தࠃޠ༻ϑΥϯτʹϑΥʔϧόοΫͨ͘͠ͳ͍Մ ೳੑ

    • ώϥΪϊΛࢦఆ͢Δ৔߹ɺΞϧϑΝϕοτʹؾΛ ͚ͭΔ [email protected] ώϥΪϊͷϝτϦΫεʹ஫ҙ

  30. [email protected] Tips: ೔ຊޠϑΥϯτʹϑΥʔϧόοΫͤ͞Δ let attributes = [ NSFontAttributeName: font, kCTLanguageAttributeName

    as String: "ja", ... ]

  31. αΠζͷܭࢉ [email protected]

  32. let size = CGSize(width: label.bounds.width, height: CGFloat.max) let boundingRect =

    NSString(string: text).boundingRectWithSize(size, options: [.UsesLineFragmentOrigin], attributes: [NSFontAttributeName: font], context: nil) [email protected] ඳըαΠζΛಘΔ

  33. [email protected] ඳըαΠζΛಘΔ

  34. UITextView [email protected]

  35. [email protected] UITextViewΛී௨ʹ࢖͏

  36. [email protected] UITextViewΛී௨ʹ࢖͏ UIFont(name: "HiraginoSans-W3", size: 32) UIFont.systemFontOfSize(32)

  37. [email protected] ඳըαΠζ

  38. [email protected] ඳըαΠζ

  39. [email protected] σϑΥϧτͷϚʔδϯ

  40. σϑΥϧτͷϚʔδϯ textView.textContainer.lineFragmentPadding textView.textContainerInset UIEdgeInsets(top: 8.0, left: 0.0, bottom: 8.0, right:

    0.0) 5.0 [email protected]

  41. [email protected] ώϥΪϊΛࢦఆͨ͠৔߹ font.leading

  42. σϑΥϧτͷελΠϧΛϦηοτ͢Δ [email protected]

  43. let textView = UITextView(frame: view.bounds) ... textView.textContainerInset = UIEdgeInsetsZero textView.sizeToFit()

    [email protected] textContainerInsetΛऔΓআ͘

  44. let textView = UITextView(frame: view.bounds) ... textView.textContainerInset = UIEdgeInsetsZero textView.sizeToFit()

    [email protected] textContainerInsetΛऔΓআ͘

  45. [email protected] textContainerInsetΛऔΓআ͘

  46. let textView = UITextView(frame: view.bounds) ... textView.textContainer.lineFragmentPadding = 0 textView.sizeToFit()

    [email protected] lineFragmentPaddingΛऔΓআ͘

  47. let textView = UITextView(frame: view.bounds) ... textView.textContainer.lineFragmentPadding = 0 textView.sizeToFit()

    [email protected] lineFragmentPaddingΛऔΓআ͘

  48. [email protected] lineFragmentPaddingΛऔΓআ͘

  49. let size = CGSize(width: textView.bounds.width, height: CGFloat.max) let boundingRect =

    NSString(string: text).boundingRectWithSize(size, options: [.UsesLineFragmentOrigin], attributes: [NSFontAttributeName: font], context: nil) [email protected] ඳըαΠζΛಘΔ

  50. [email protected] ඳըαΠζΛಘΔ

  51. let textView = UITextView(frame: view.bounds) ... textView.layoutManager.usesFontLeading = false textView.sizeToFit()

    [email protected] font.leadingΛऔΓআ͘

  52. let textView = UITextView(frame: view.bounds) ... textView.layoutManager.usesFontLeading = false textView.sizeToFit()

    [email protected] font.leadingΛऔΓআ͘

  53. [email protected] font.leadingΛऔΓআ͘

  54. let size = CGSize(width: textView.bounds.width, height: CGFloat.max) let boundingRect =

    NSString(string: text).boundingRectWithSize(size, options: [.UsesLineFragmentOrigin, .UsesFontLeading], attributes: [NSFontAttributeName: font], context: nil) [email protected] ʢผղʣfont.leadingΛؚΊͯܭࢉ͢Δ

  55. [email protected] ʢผղʣfont.leadingΛؚΊͯܭࢉ͢Δ

  56. [email protected] ʢผղʣfont.leadingΛؚΊͯܭࢉ͢Δ

  57. [email protected] textView.textContainerInset = UIEdgeInsetsZero textView.textContainer.lineFragmentPadding = 0 textView.layoutManager.usesFontLeading = false

    σϑΥϧτελΠϧͷϦηοτ

  58. ͞·͟·ͳελΠϧʹରԠ͢Δ [email protected]

  59. [email protected] ߦؒͷมߋ

  60. NSAttributedString [email protected]

  61. NSParagraphStyle [email protected]

  62. let paragraphStyle = NSMutableParagraphStyle() paragraphStyle.minimumLineHeight = ceil(font.lineHeight) paragraphStyle.maximumLineHeight = ceil(font.lineHeight)

    paragraphStyle.lineSpacing = 8 let attributes = [ NSFontAttributeName: font, NSForegroundColorAttributeName: UIColor(...), NSParagraphStyleAttributeName: paragraphStyle, ] let attributedText = NSAttributedString(string: text, attributes: attributes) textView.attributedText = attributedText [email protected] NSAttributedString

  63. let paragraphStyle = NSMutableParagraphStyle() paragraphStyle.minimumLineHeight = ceil(font.lineHeight) paragraphStyle.maximumLineHeight = ceil(font.lineHeight)

    paragraphStyle.lineSpacing = 8 let attributes = [ NSFontAttributeName: font, NSForegroundColorAttributeName: UIColor(...), NSParagraphStyleAttributeName: paragraphStyle, ] let attributedText = NSAttributedString(string: text, attributes: attributes) textView.attributedText = attributedText [email protected] NSAttributedString

  64. [email protected] ߦؒͷมߋ

  65. [email protected] ߦؒͷมߋ

  66. let paragraphStyle = NSMutableParagraphStyle() paragraphStyle.minimumLineHeight = ceil(font.lineHeight) paragraphStyle.maximumLineHeight = ceil(font.lineHeight)

    paragraphStyle.lineSpacing = 8 [email protected] min/maxLineHeight

  67. [email protected] min/maxLineHeight

  68. [email protected] minimumLineHeight

  69. [email protected] maximumLineHeight

  70. NSAttributedStringΛ׆༻͢Δ [email protected]

  71. [email protected] ͞ΒʹߦؒΛ޿͘

  72. [email protected] ͞ΒʹߦؒΛ޿͘

  73. [email protected] Օ৚ॻ͖

  74. ·ͱΊ • iOS 7Ҏ߱ͷςΩετϨΠΞ΢τ͸ɺ͍͔ʹ ΩϨΠͳNSAttributedStringΛ࡞Δ͔ • λΠϙάϥϑΟͷجૅΛ஌Ζ͏ • ϑΥϯτʹώϥΪϊΛࢦఆ͢Δͱ͖͸஫ҙ •

    Ͱ͖Δ͚ͩγεςϜϑΥϯτΛ࢖͓͏ [email protected]

  75. Questions? Katsuma Kishikawa [email protected] www.realm.io/jp @k_katsumi