TextKit实现图文混排.docxVIP

 HYPERLINK /SilverWinter/p/SilverWinter_TextKit.html TextKit实现图文混排 //??? NSAttributedString?? 这个类可以设置文本属性：加粗、斜体、删除线、下划线... //??? NSMutableAttributedString? 可变属性文本：可以动态添加文本的属性 NSString *text = @iOS实现图文混排的方式：1.WebView???? html+javascript 2、CoreText?? (C语言实现的框架) ; UITextView *textview = [［UITextView alloc］ initWithFrame:frame]; textview.delegate = self; textview.text = text; NSMutableAttributedString *attrstring = [[NSMutableAttributedString alloc] initWithString:text]; ? //1.设置字体 NSRange rg = [text rangeOfString:@CoreText]; [attrstring addAttribute:NSFontAttributeName value:[UIFont boldSystemFontOfSize:18] range:rg]; 14.//2.设置字体颜色 NSString *s2 = @WebView; [attrstring addAttribute:NSForegroundColorAttributeName ??????????????value:[UIColor redColor] range:[text rangeOfString:s2]]; 19.//3.设置字体的背景颜色 [attrstring addAttribute:NSBackgroundColorAttributeName value:[UIColor greenColor] ?range:[text rangeOfString:s2]]; 23.textview.attributedText = attrstring; 26.//1.字典中存储多个文本属性 NSDictionary *attributes = @{ NSFontAttributeName:[UIFont boldSystemFontOfSize:18], NSUnderlineStyleAttributeName:@1 }; 31.//2.字典中多个文本属性，对整个text字符串设置 NSMutableAttributedString *attrstring = [[NSMutableAttributedString alloc] initWithString:text attributes:attributes]; 33.//3.添加超连接 NSString *s1 = @html+javascript; [attrstring addAttribute:NSLinkAttributeName value:@ range:[text rangeOfString:s1]]; 38.//4.修改超连接的文本属性 textview.linkTextAttributes = @{ NSForegroundColorAttributeName : [UIColor redColor], NSUnderlineStyleAttributeName:@1 }; 43.//5.添加(表情)图片 @interface ImgTextAttachment : NSTextAttachment //1 创建图片附件 ImgTextAttachment *imgTextAtta = [[ImgTextAttachment alloc] init]; imgTextAtta.image = [UIImage imageNamed:@026.gif]; //2创建文本属性对象，用于包装图片附件 NSAttributedString *imgAttributed = [NSAttributedString attributedStringWithAttachment:imgTextAtta]; //3 将图片文本，插入到字符串中的某个位置 [attrstring insertAttributedString:imgAttributed atIndex:3]; 54.textview.attributedText = attrstring; 56.//UITextView 中的超连接被点击的协议方法 57.-