(ios) NSMutableAttributedString 이용하여, 특정 텍스트 옵션 변경하기


NSMutableAttributedString는 특정 텍스트의 색상 및 폰트를 변경할 때 사용됩니다.


1. 초기화, 객체를 초기화 하고 변경한 text를 넣어줍니다.


NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:text];

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2. addAttribute이용하여, 폰트를 변경할 수 있는 NSFontAttributeName 설정해주고, 
value 에 변경할 폰트를 적용해 줍니다. range는 변경을 원하는 범위를 적용해주면, 사용자가 원하는 텍스트에 폰트를 변경할수 있습니다


  // 폰트
[attributedString addAttribute:NSFontAttributeName
                             value: [UIFont fontWithName:FONT_NanumBarunGothic size:m_contentTextView.font.pointSize]
                             range:NSMakeRange(0, m_contentTextView.text.length)];

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3. 폰트 이외에도 다양한 옵션들을 변경할수 있습니다.

UIKIT_EXTERN NSAttributedStringKey const NSFontAttributeName NS_AVAILABLE(10_0, 6_0);                // UIFont, default Helvetica(Neue) 12
UIKIT_EXTERN NSAttributedStringKey const NSParagraphStyleAttributeName NS_AVAILABLE(10_0, 6_0);      // NSParagraphStyle, default defaultParagraphStyle
UIKIT_EXTERN NSAttributedStringKey const NSForegroundColorAttributeName NS_AVAILABLE(10_0, 6_0);     // UIColor, default blackColor
UIKIT_EXTERN NSAttributedStringKey const NSBackgroundColorAttributeName NS_AVAILABLE(10_0, 6_0);     // UIColor, default nil: no background
UIKIT_EXTERN NSAttributedStringKey const NSLigatureAttributeName NS_AVAILABLE(10_0, 6_0);            // NSNumber containing integer, default 1: default ligatures, 0: no ligatures
UIKIT_EXTERN NSAttributedStringKey const NSKernAttributeName NS_AVAILABLE(10_0, 6_0);                // NSNumber containing floating point value, in points; amount to modify default kerning. 0 means kerning is disabled.
UIKIT_EXTERN NSAttributedStringKey const NSStrikethroughStyleAttributeName NS_AVAILABLE(10_0, 6_0);  // NSNumber containing integer, default 0: no strikethrough
UIKIT_EXTERN NSAttributedStringKey const NSUnderlineStyleAttributeName NS_AVAILABLE(10_0, 6_0);      // NSNumber containing integer, default 0: no underline
UIKIT_EXTERN NSAttributedStringKey const NSStrokeColorAttributeName NS_AVAILABLE(10_0, 6_0);         // UIColor, default nil: same as foreground color
UIKIT_EXTERN NSAttributedStringKey const NSStrokeWidthAttributeName NS_AVAILABLE(10_0, 6_0);         // NSNumber containing floating point value, in percent of font point size, default 0: no stroke; positive for stroke alone, negative for stroke and fill (a typical value for outlined text would be 3.0)
UIKIT_EXTERN NSAttributedStringKey const NSShadowAttributeName NS_AVAILABLE(10_0, 6_0);              // NSShadow, default nil: no shadow
UIKIT_EXTERN NSAttributedStringKey const NSTextEffectAttributeName NS_AVAILABLE(10_10, 7_0);          // NSString, default nil: no text effect

UIKIT_EXTERN NSAttributedStringKey const NSAttachmentAttributeName NS_AVAILABLE(10_0, 7_0);          // NSTextAttachment, default nil
UIKIT_EXTERN NSAttributedStringKey const NSLinkAttributeName NS_AVAILABLE(10_0, 7_0);                // NSURL (preferred) or NSString
UIKIT_EXTERN NSAttributedStringKey const NSBaselineOffsetAttributeName NS_AVAILABLE(10_0, 7_0);      // NSNumber containing floating point value, in points; offset from baseline, default 0
UIKIT_EXTERN NSAttributedStringKey const NSUnderlineColorAttributeName NS_AVAILABLE(10_0, 7_0);      // UIColor, default nil: same as foreground color
UIKIT_EXTERN NSAttributedStringKey const NSStrikethroughColorAttributeName NS_AVAILABLE(10_0, 7_0);  // UIColor, default nil: same as foreground color
UIKIT_EXTERN NSAttributedStringKey const NSObliquenessAttributeName NS_AVAILABLE(10_0, 7_0);         // NSNumber containing floating point value; skew to be applied to glyphs, default 0: no skew
UIKIT_EXTERN NSAttributedStringKey const NSExpansionAttributeName NS_AVAILABLE(10_0, 7_0);           // NSNumber containing floating point value; log of expansion factor to be applied to glyphs, default 0: no expansion

UIKIT_EXTERN NSAttributedStringKey const NSWritingDirectionAttributeName NS_AVAILABLE(10_6, 7_0);    // NSArray of NSNumbers representing the nested levels of writing direction overrides as defined by Unicode LRE, RLE, LRO, and RLO characters.  The control characters can be obtained by masking NSWritingDirection and NSWritingDirectionFormatType values.  LRE: NSWritingDirectionLeftToRight|NSWritingDirectionEmbedding, RLE: NSWritingDirectionRightToLeft|NSWritingDirectionEmbedding, LRO: NSWritingDirectionLeftToRight|NSWritingDirectionOverride, RLO: NSWritingDirectionRightToLeft|NSWritingDirectionOverride,

UIKIT_EXTERN NSAttributedStringKey const NSVerticalGlyphFormAttributeName NS_AVAILABLE(10_7, 6_0);   // An NSNumber containing an integer value.  0 means horizontal text.  1 indicates vertical text.  If not specified, it could follow higher-level vertical orientation settings.  Currently on iOS, it's always horizontal.  The behavior for any other value is undefined.

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