iOS nsmutableattributedstring detailed display of different fonts and colors of the string

1Nsmutableattributedstring *mutablestring =[[nsmutableattributedstring Alloc]initwithstring:totalfee];2 [mutablestring addattribute:nsfontattributename3Value:[uifont systemfontofsize:21.0]4Range:nsmakerange (3, Totalfee.length-3)];//Set Font5 [mutablestring addattribute:nsforegroundcolorattributename6 Value:[uicolor Redcolor]7Range:nsmakerange (3, Totalfee.length-3)];//Set Color8Sumlabel.attributedtext = mutablestring;

The initialization methods of nsattributedstring are:
-initwithstring: Initialized with string with no attributed information.
-initwithattributedstring: Initialize with attributedstring.
-initwithstring:attributed: Initialized with string and attribute dictionary.

The key value pairs for the specific attributtedstring property are as follows:
1, NSString *const nsfontattributename;//value is Uifont, set the font, the default value is 12-point Helvetica (Neue).
The following code allows you to see the fonts available in iOS, and to see the Font Book tool.

1Nsarray *familyarray =[Uifont familynames];2  for(IDFamilyinchFamilyarray) {3printf ("%s\n ", [family cstringusingencoding:nsutf8stringencoding]);4Nsarray *fontarray =[Uifont fontnamesforfamilyname:family];5      for(IDFontinchFontarray) {6printf ("%s\n ", [Font cstringusingencoding:nsutf8stringencoding]);7     }8}

2, NSString *const nsparagraphstyleattributename;//value is Nsparagraphstyle, set paragraph properties, the default value is [Nsparagraphstyle Defaultparagraphstyle] returns the value.
Nsmutableparagraphstyle and Nsparagraphstyle include the following properties:
Alignment//Alignment
Firstlineheadindent//First line Indent
Headindent//Indent
Tailindent//Trailing indent
Linebreakmode//Break method
Maximumlineheight//MAX row height
Minimumlineheight//Minimum row height
LineSpacing//Line spacing
Paragraphspacing//Segment Distance
Paragraphspacingbefore//Segment head space
Basewritingdirection//sentence direction
Lineheightmultiple//variable row height, multiply factor.
Hyphenationfactor//Hyphen Property
3, NSString *const nsforegroundcolorattributename;//value is uicolor, font color, default is black.
4, NSString *const nsbackgroundcolorattributename;//value is uicolor, font background color, the default is not.
5, NSString *const nsligatureattributename;//value for integer type NSNumber, hyphenation properties, general Chinese can not be used in English, may appear in the case of adjacent letters pen. 0 is not a pen, 1 is the default pen, and the default value, 2 is not supported on iOS.
6, NSString *const nskernattributename;//value is floating point number nsnumber, Kerning property, the default value is 0.
7, NSString *const nsstrikethroughstyleattributename;//value is integer nsnumber, the desired value is
enum {
Nsunderlinestylenone = 0x00,
Nsunderlinestylesingle = 0x01,
}; Set strikethrough.

8, NSString *const nsunderlinestyleattributename;//Ibid. Sets the underline.
9, NSString *const nsstrokecolorattributename;//value is Uicolor, the default value is nil, set the property with Foregroundcolor.
10, NSString *const nsstrokewidthattributename;//value is floating point number nsnumber. Sets the thickness of the drawing.
11, NSString *const nsshadowattributename;//value is Nsshadow, set the shadow of the picture, the default value is nil.
12, NSString *const nsverticalglyphformattributename;//value for the integer type nsnumber,0 for the horizontal layout of the word, 1 for vertical typesetting of the word.

iOS nsmutableattributedstring detailed display of different fonts and colors of the string