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
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
浮動小数の比較について
Avatar for Kishikawa Katsumi kishikawakatsumi
0
400
Automatic Grammar Agreementと Markdown Extended Attributes
について
Avatar for Kishikawa Katsumi kishikawakatsumi
0
220
愛される翻訳の秘訣
Avatar for Kishikawa Katsumi kishikawakatsumi
3
410
Private APIの呼び出し方
Avatar for Kishikawa Katsumi kishikawakatsumi
3
1k
iOSでSVG画像を扱う
Avatar for Kishikawa Katsumi kishikawakatsumi
0
220
Build your own WebP codec in Swift
Avatar for Kishikawa Katsumi kishikawakatsumi
2
1.8k
iOSDC 2024 SMBファイル共有をSwiftで実装する
Avatar for Kishikawa Katsumi kishikawakatsumi
1
300
Enhancing Applications with Accessibility API
Avatar for Kishikawa Katsumi kishikawakatsumi
3
5.3k
Mastering SwiftSyntax
Avatar for Kishikawa Katsumi kishikawakatsumi
4
7.6k

Other Decks in Programming

See All in Programming
CSC307 Lecture 15
Avatar for Javier Gonzalez-Sanchez javiergs
PRO
0
240
今更考える「単一責任原則」 / Thinking about the Single Responsibility Principle
Avatar for philomagi tooppoo
3
1.6k
「抽象に依存せよ」が分からなかった新卒1年目の私が Goのインターフェースと和解するまで
Avatar for Genki-Miyakawa kurogenki
0
110
The Past, Present, and Future of Enterprise Java
Avatar for ivargrimstad ivargrimstad
0
180
maplibre-gl-layers - 地図に移動体たくさん表示したい
Avatar for Kouji Matsui kekyo
PRO
0
240
AI Assistants for Your Angular Solutions
Avatar for Manfred Steyer manfredsteyer
PRO
0
130
受け入れテスト駆動開発(ATDD)×AI駆動開発 AI時代のATDDの取り組み方を考える
Avatar for Takasaki Kazunari kztakasaki
2
560
DevinとClaude Code、SREの現場で使い倒してみた件
Avatar for karia/Y.Hisamatsu karia
1
1k
RubyとGoでゼロから作る証券システム： 高信頼性が求められるシステムのコードの外側にある設計と運用のリアル
Avatar for free_world21 free_world21
0
260
ふつうの Rubyist、ちいさなデバイス、大きな一年
Avatar for bash0C7 bash0c7
0
830
Codexに役割を持たせる 他のAIエージェントと組み合わせる実務Tips
Avatar for o8n o8n
4
1.3k
Rで始めるML・LLM活用入門
Avatar for wakama1994 wakamatsu_takumu
0
170

Featured

See All Featured
Fantastic passwords and where to find them - at NoRuKo
Avatar for Phil Nash philnash
52
3.6k
Measuring & Analyzing Core Web Vitals
Avatar for Philip Tellis bluesmoon
9
780
How to make the Groovebox
Avatar for あそなす asonas
2
2k
We Analyzed 250 Million AI Search Results: Here's What I Found
Avatar for Josh Blyskal joshbly
1
940
Bash Introduction
Avatar for André Augusto Costa Santos 62gerente
615
210k
WENDY [Excerpt]
Avatar for Tessa Abrams tessaabrams
9
36k
What Being in a Rock Band Can Teach Us About Real World SEO
Avatar for Ade Holder 427marketing
0
190
Being A Developer After 40
Avatar for Adrian Kosmaczewski akosma
91
590k
Organizational Design Perspectives: An Ontology of Organizational Design Elements
Avatar for Dr. Kim W Petersen kimpetersen
PRO
1
630
The Pragmatic Product Professional
Avatar for Laura Van Doore lauravandoore
37
7.2k
Between Models and Reality
Avatar for mayunak mayunak
2
230
Templates, Plugins, & Blocks: Oh My! Creating the theme that thinks of everything
Avatar for Michelle Schulp Hunt marktimemedia
31
2.7k

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