uitextview显示html

NSData *data = [htmlString dataUsingEncoding:NSUnicodeStringEncoding];
NSDictionary *options = @{NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType};
NSAttributedString *html = [[NSAttributedString alloc]initWithData:data
                                                           options:options
                                                documentAttributes:nil
                                                             error:nil];
textView.attributedText = html;

- (BOOL)textView:(UITextView *)textView shouldInteractWithURL:(NSURL *)URL inRange:(NSRange)characterRange {
    
    
    return YES;    
}