给UITextView添加链接

1. NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:@"This is an example by @marcelofabri_"]; 
2. [attributedString addAttribute:NSLinkAttributeName 
3.                          value:@"username://marcelofabri_" 
4.                          range:[[attributedString string] rangeOfString:@"@marcelofabri_"]]; 
5.   
6.   
7. NSDictionary *linkAttributes = @{NSForegroundColorAttributeName: [UIColor greenColor], 
8.                                  NSUnderlineColorAttributeName: [UIColor lightGrayColor], 
9.                                  NSUnderlineStyleAttributeName: @(NSUnderlinePatternSolid)}; 
10.   
11. // assume that textView is a UITextView previously created (either by code or Interface Builder) 
12. textView.linkTextAttributes = linkAttributes; // customizes the appearance of links 
13. textView.attributedText = attributedString; 
14. textView.delegate = self; 

1. - (BOOL)textView:(UITextView *)textView shouldInteractWithURL:(NSURL *)URL inRange:(NSRange)characterRange { 
2.     if ([[URL scheme] isEqualToString:@"username"]) { 
3.         NSString *username = [URL host];  
4.         // do something with this username 
5.         // ... 
6.         return NO; 
7.     } 
8.     return YES; // let the system open this URL 
9. } 

给UITextView添加链接

原文：http://www.cnblogs.com/W-Kr/p/5095296.html