How to add clickable Links to UILabel with attributedText in iOS 6 - objective-c

Question

I used DTCoreText to display formatted text in my apps. DTAttributedTextView also supports clickable links.
Since iOS6 we can use the setAttributedText function to display attributedStrings in UILabel.
But how can I display Links that are clickable? Is there a way to call a delegate Function etc. when a link is pressed?

Answer 1

The iOS 6.0 UILabel still cant display clickable links.
However you could use a UITextView instead. The textview can detect links, but the link detection only work if editing of text is disabled. Limitations are that you cant do something like this in BBCode [url=www.apple.com]Apples Website[/url].

Answer 2

Here is example code to hyperlink UILabel:
Source:http://sickprogrammersarea.blogspot.in/2014/03/adding-links-to-uilabel.html
#import "ViewController.h"
#import "TTTAttributedLabel.h"
#interface ViewController ()
#end
#implementation ViewController
{
UITextField *loc;
TTTAttributedLabel *data;
}
- (void)viewDidLoad
{
[super viewDidLoad];
UILabel *lbl = [[UILabel alloc] initWithFrame:CGRectMake(5, 20, 80, 25) ];
[lbl setText:#"Text:"];
[lbl setFont:[UIFont fontWithName:#"Verdana" size:16]];
[lbl setTextColor:[UIColor grayColor]];
loc=[[UITextField alloc] initWithFrame:CGRectMake(4, 20, 300, 30)];
//loc.backgroundColor = [UIColor grayColor];
loc.borderStyle=UITextBorderStyleRoundedRect;
loc.clearButtonMode=UITextFieldViewModeWhileEditing;
//[loc setText:#"Enter Location"];
loc.clearsOnInsertion = YES;
loc.leftView=lbl;
loc.leftViewMode=UITextFieldViewModeAlways;
[loc setDelegate:self];
[self.view addSubview:loc];
[loc setRightViewMode:UITextFieldViewModeAlways];
CGRect frameimg = CGRectMake(110, 70, 70,30);
UIButton *srchButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
srchButton.frame=frameimg;
[srchButton setTitle:#"Go" forState:UIControlStateNormal];
[srchButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
srchButton.backgroundColor=[UIColor clearColor];
[srchButton addTarget:self action:#selector(go:) forControlEvents:UIControlEventTouchDown];
[self.view addSubview:srchButton];
data = [[TTTAttributedLabel alloc] initWithFrame:CGRectMake(5, 120,self.view.frame.size.width,200) ];
[data setFont:[UIFont fontWithName:#"Verdana" size:16]];
[data setTextColor:[UIColor blackColor]];
data.numberOfLines=0;
data.delegate = self;
data.enabledTextCheckingTypes=NSTextCheckingTypeLink|NSTextCheckingTypePhoneNumber;
[self.view addSubview:data];
}
- (void)attributedLabel:(TTTAttributedLabel *)label didSelectLinkWithURL:(NSURL *)url
{
NSString *val=[[NSString alloc]initWithFormat:#"%#",url];
if ([[url scheme] hasPrefix:#"mailto"]) {
NSLog(#" mail URL Selected : %#",url);
MFMailComposeViewController *comp=[[MFMailComposeViewController alloc]init];
[comp setMailComposeDelegate:self];
if([MFMailComposeViewController canSendMail])
{
NSString *recp=[[val substringToIndex:[val length]] substringFromIndex:7];
NSLog(#"Recept : %#",recp);
[comp setToRecipients:[NSArray arrayWithObjects:recp, nil]];
[comp setSubject:#"From my app"];
[comp setMessageBody:#"Hello bro" isHTML:NO];
[comp setModalTransitionStyle:UIModalTransitionStyleCrossDissolve];
[self presentViewController:comp animated:YES completion:nil];
}
}
else{
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:val]];
}
}
-(void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error{
if(error)
{
UIAlertView *alrt=[[UIAlertView alloc]initWithTitle:#"Erorr" message:#"Some error occureed" delegate:nil cancelButtonTitle:#"" otherButtonTitles:nil, nil];
[alrt show];
[self dismissViewControllerAnimated:YES completion:nil];
}
else{
[self dismissViewControllerAnimated:YES completion:nil];
}
}
- (void)attributedLabel:(TTTAttributedLabel *)label didSelectLinkWithPhoneNumber:(NSString *)phoneNumber
{
NSLog(#"Phone Number Selected : %#",phoneNumber);
UIDevice *device = [UIDevice currentDevice];
if ([[device model] isEqualToString:#"iPhone"] ) {
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:[NSString stringWithFormat:#"tel:%#",phoneNumber]]];
} else {
UIAlertView *Notpermitted=[[UIAlertView alloc] initWithTitle:#"Alert" message:#"Your device doesn't support this feature." delegate:nil cancelButtonTitle:#"OK" otherButtonTitles:nil];
[Notpermitted show];
}
}
-(void)go:(id)sender
{
[data setText:loc.text];
}
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
NSLog(#"Reached");
[loc resignFirstResponder];
}