Attributed String Programming Guide.pdf

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1、AttributedStringProgrammingGuideContentsIntroductiontoAttributedStringProgrammingGuide4WhoShouldReadThisDocument4OrganizationofThisDocument4SeeAlso5AttributedStrings6CreatingAttributedStringsinCocoa8AccessingAttributes10RetrievingAttributeValues10Effe

2、ctiveandMaximalRanges11ChanginganAttributedString13ModifyingAttributes13FixingInconsistencies14DrawingAttributedStrings16RTFFilesandAttributedStrings17ReadingandWritingRTFData17HandlingDocumentAttributes18HandlingAttachments19Apple’sRTFExtensions20Wor

3、dandLineCalculationsinAttributedStrings24StandardAttributes25DocumentRevisionHistory27Index282009-10-19

4、Copyright©1997,2009AppleInc.AllRightsReserved.2TablesRTFFilesandAttributedStrings17Table1DocumentattributessupportedbyRTF-handlingmethods18Table2Ch

5、aracterattributeRTFextensions20Table3ParagraphattributeRTFextensions22Table4DocumentattributeRTFextensions23StandardAttributes25Table1Tableofstandardattributes252009-10-19

6、Copyright©1997,2009AppleInc.AllRightsReserved.3IntroductiontoAttributedStringPr

7、ogrammingGuideAttributedStringProgrammingGuidedescribestheattributedstringobjects,instantiatedfromtheNSAttributedStringclassortheCFAttributedStringCoreFoundationopaquetype,whichmanagesetsoftextattributes,suchasfontandkerning,thatareassociatedwithchara

8、cterstringsorindividualcharacters.WhoShouldReadThisDocumentYoushouldreadthisdocumentifyouneedtoworkdirectlywithattributedstringobjects.OrganizationofThisDocumentThisprogrammingtopiccontainsthefollowingarticles:●“AttributedStrings”(page6)describestheat

9、tributedstringobjectsinstantiatedfromNSAttributedString,NSMutableAttributedString,CFAttributedStringandCFMutableAttributedString.●“CreatingAttributedStringsinCocoa”(page8)describeshowtocreateattributedstringswithdatathatyouprovide.●“AccessingAttribute

10、s”(page10)describeshowtoaccesstextattributes.●“ChanginganAttributedString”(page13)describeshowtochangecharactersandattributesinanattributedstring.●“DrawingAttributedStrings”(page16)describeshowtodrawanattributedstringinaview.●“RTFFilesandAttri