iOS-加载html字符串

NSMutableAttributedString * attrString =[[NSMutableAttributedString alloc] initWithData:[resultModel.tips dataUsingEncoding:NSUnicodeStringEncoding]options:@{NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType}documentAttributes:nil error:nil];

[attrString addAttributes:@{NSFontAttributeName:[UIFont systemFontOfSize:14]} range:NSMakeRange(0, attrString.length)];

self.descLabel.attributedText = attrString;
算高度
NSMutableAttributedString *htmlString =[[NSMutableAttributedString alloc] initWithData:[str dataUsingEncoding:NSUTF8StringEncoding] options:@{NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType,NSCharacterEncodingDocumentAttribute:[NSNumber numberWithInt:NSUTF8StringEncoding]}documentAttributes:NULL error:nil];

[htmlString addAttributes:@{NSFontAttributeName:[UIFont systemFontOfSize:14]} range:NSMakeRange(0, htmlString.length)];

CGSize textSize = [htmlString boundingRectWithSize:(CGSize){ScreenWidth - 20, CGFLOAT_MAX}options:NSStringDrawingUsesLineFragmentOrigin

context:nil].size;

return textSize.height ;