Text-To-text mix-use emoticons instead of "[Type]" display

1. Simply set a string with attributes

defines a string with a nsmutableattributedstring property

nsmutableattributedstring *str = [[nsmutableattributedstring alloc] initwithstring: @ "Hello[1_1] world! [ haha] [ smile ] "];

Setting Properties

[StrSetAttributes:@{Nsfontattributename:[uifont systemfontofsize:60], nsforegroundcolorattributename:[uicolor Span class= "S1" >redcolornsbackgroundcolorattributename:[< Span class= "S1" >uicolor greencolor], Nsunderlinecolorattributename:[uicolor Bluecolornsunderlinestyleattributename:@ ( nsunderlinestyledouble)} range:nsmakerange (0, 5)];

< span class= "s2" > < Span class= "S1" > < span class= "s2" >    display

_label. Attributedtext = str;

2. Use emoticons instead of words with "" (QQ session, session)

definition Regular Expressions

nsstring *pattern = @ "\\[[\u4e00-\u9fa5]+\\]";

nsregularexpression *regular = [nsregularexpression regularexpressionwithpattern:p Attern options:nsregularexpressioncaseinsensitive error:nil];

nsstring *text = @ "Hello[1_1" world![ haha ] ";

an array of type Nstextcheckingresult that conforms to the expression.

nsarray *resultarray = [regular matchesinstring: Text options: 0 range:nsmakerange(0, text. Length)];

defines a string with an attachment

nsmutableattributedstring *attstr = [[nsmutableattributedstring alloc] Initwithstring: text];

for (nstextcheckingresult *result in resultarray) {

location

nsrange range = result. Range;

Get Attachments

nstextattachment *attach = [[nstextattachment alloc] init];

set up a picture of an attachment

Attach. image = [UIImage imagenamed:@ "D_guzhang"];

get the string generated by the attachment

nsattributedstring *imagestr = [nsattributedstring attributedstringwithattachment: Attach];

replace the words with expressions

[Attstr replacecharactersinrange: Range withattributedstring: imagestr];

}

_label. Attributedtext = attstr;

Text-To-text mix-use emoticons instead of "[Type]" display