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NSAttributedString
et CoreText dans iOS
       Thibaut Jarosz
      Cocoaheads Lyon
Plan

• NSAttributedString
• CATextLayer
• CoreText
NSAttributedString
NSAttributedString
• Contient :
 • NSString
 • Liste d’attributs
• Attribut :
 • Clé / Valeur
 • NSRange
Attributs
              Clé                          Type
     kCTFontAttributeName         CTFontRef / CGFontRef
kCTForegroundColorAttributeName          CGColor
 kCTUnderlineStyleAttributeName   kCTUnderlineStyleSingle
               …                            …
     N’importe quel NSString                id
CATextLayer
CATextLayer
• Object, inclus dans CoreAnimation
• Properties :
 • string
 • wrapped
 • alignmentMode
 •…
CATextLayer
UIView
CALayer
 CATextLayer
CoreText
CoreText

• Complet
• Complexe
• Nécessite des connaissance en :
 • CoreGraphics
 • Gestion manuelle des frames
Architecture

Ce texte contient un CTRun bleu, 2 CTRun

rouges, 2 CTLine et 1 CTFrame.




 CTRun           CTLine          CTFrame
Questions ?
Resources
• Documentation Apple
• neror : CA360
 • https://github.com/neror/CA360
• jeremytregunna : JTextView
 • https://github.com/jeremytregunna/JTextView
• AliSoftware : OHAttributedLabel
 • https://github.com/AliSoftware/OHAttributedLabel
Contact

• Thibaut Jarosz
• Mail:
 • thibaut@octiplex.com
• Twitter
 • @thibautjarosz

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CocoaHeads Lyon 17/11/2011 : NSAttributedString et CoreText

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