Link tap color for TTTAttributedLabel - ios

Question

I am using a TTTAttributedLabel in my project. I have managed to change the default color and underlining for any link that I create by modifying the link attributes.
NSArray *pKeys = [[NSArray alloc] initWithObjects:(id)kCTForegroundColorAttributeName,
(id)kCTUnderlineStyleAttributeName
, nil];
NSArray *pObjects = [[NSArray alloc] initWithObjects:pAlertColor,[NSNumber numberWithInt:
kCTUnderlineStyleNone], nil];
NSDictionary *pLinkAttributes = [[NSDictionary alloc] initWithObjects:pObjects
forKeys:pKeys];
self.alertMessage.linkAttributes = pLinkAttributes;
self.alertMessage.activeLinkAttributes = pLinkAttributes;
However, I have noticed that when I tap on the link, it turns red momentarily as any other link does when tapped. I need to change this color. Any clues to how that might be done?

Answer 1

Swift 2 Solution:
Specifically, need to set activeLinkAttributes, see below example:
private func subscriptionNoticeWithDelegate(delegate:TTTAttributedLabelDelegate) -> TTTAttributedLabel {
let subscriptionNotice:String = "To turn on all notifications, subscribe to our monthly " +
"service ($0.99/month). If you have already subscribed, please restore your purchase."
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.lineHeightMultiple = 1.2
let subscriptionNoticeAttributedString = NSAttributedString(string:subscriptionNotice, attributes: [
NSFontAttributeName: UIFont(name:"HelveticaNeue-Light", size:15)!,
NSParagraphStyleAttributeName: paragraphStyle,
NSForegroundColorAttributeName: UIColor.grayColor().CGColor,
])
let subscriptionNoticeLinkAttributes = [
NSForegroundColorAttributeName: UIColor.grayColor(),
NSUnderlineStyleAttributeName: NSNumber(bool:true),
]
let subscriptionNoticeActiveLinkAttributes = [
NSForegroundColorAttributeName: UIColor.grayColor().colorWithAlphaComponent(0.80),
NSUnderlineStyleAttributeName: NSNumber(bool:true),
]
let subscriptionNoticeLabel:TTTAttributedLabel = TTTAttributedLabel(frame:CGRectZero)
subscriptionNoticeLabel.delegate = delegate
subscriptionNoticeLabel.numberOfLines = 0
subscriptionNoticeLabel.lineBreakMode = NSLineBreakMode.ByWordWrapping
subscriptionNoticeLabel.textInsets = UIEdgeInsets(top:10, left:15, bottom:0, right:15)
subscriptionNoticeLabel.setText(subscriptionNoticeAttributedString)
subscriptionNoticeLabel.linkAttributes = subscriptionNoticeLinkAttributes
subscriptionNoticeLabel.activeLinkAttributes = subscriptionNoticeActiveLinkAttributes
let subscribeLinkRange = (subscriptionNotice as NSString).rangeOfString("subscribe")
let subscribeURL = NSURL(string:kSubscriptionNoticeSubscribeURL)!
subscriptionNoticeLabel.addLinkToURL(subscribeURL, withRange:subscribeLinkRange)
let restoreLinkRange = (subscriptionNotice as NSString).rangeOfString("restore")
let restoreURL = NSURL(string:kSubscriptionNoticeRestoreURL)!
subscriptionNoticeLabel.addLinkToURL(restoreURL, withRange:restoreLinkRange)
return subscriptionNoticeLabel
}

Answer 2

You will like to look at TTTAttributedLabel documentation, specifically at activeLinkAttributes
activeLinkAttributes
#property (nonatomic, strong) NSDictionary *activeLinkAttributes
Discussion
A dictionary containing the NSAttributedString attributes to be
applied to links when they are in the active state. If nil or an empty
NSDictionary, active links will not be styled. The default active link
style is red and underlined.
Declared In
TTTAttributedLabel.h

Answer 3

You should do something like this
NSMutableDictionary *mutableActiveLinkAttributes = [NSMutableDictionary dictionary];
[mutableActiveLinkAttributes setObject:[NSNumber numberWithBool:NO] forKey:(NSString *)kCTUnderlineStyleAttributeName];
[mutableActiveLinkAttributes setObject:[UIColor greenColor] forKey:(NSString *)kCTForegroundColorAttributeName];
label.activeLinkAttributes = [NSDictionary dictionaryWithDictionary:mutableActiveLinkAttributes];

Answer 4

For Swift 4:
let activeLinkAttributes = NSMutableDictionary(dictionary: attributedLabel.activeLinkAttributes)
activeLinkAttributes[NSAttributedStringKey.foregroundColor] = UIColor.blue
attributedLabel.activeLinkAttributes = activeLinkAttributes as NSDictionary as! [AnyHashable: Any]
For Swift 3:
let activeLinkAttributes = NSMutableDictionary(dictionary: attributedLabel.activeLinkAttributes)
activeLinkAttributes[NSForegroundColorAttributeName] = UIColor.blue
attributedLabel.activeLinkAttributes = activeLinkAttributes as NSDictionary as! [AnyHashable: Any]

Answer 5

Full code to set TTTAttributedLabel in Objective-C
#import "TTTAttributedLabel.h"
#property (weak, nonatomic) IBOutlet TTTAttributedLabel *attributedLable;
- (void)viewDidLoad {
[super viewDidLoad];
[self setup];
}
- (void)setup {
_attributedLable.numberOfLines = 0;
NSString *strTC = #"Terms and Condition";
NSString *strPP = #"Privacy Policy";
NSString *string = [NSString stringWithFormat:#"By click continue I agree to %# and %#.",strTC,strPP];
NSMutableParagraphStyle *paragraphStyle = [NSMutableParagraphStyle alloc];
paragraphStyle.lineHeightMultiple = 1.2;
NSAttributedString *fullAttributedString = [[NSAttributedString alloc] initWithString:string attributes:#{
NSFontAttributeName : [UIFont fontWithName:IZFontNameLatoRegular size:15.0],
NSParagraphStyleAttributeName : paragraphStyle
}];
[_attributedLable setTextAlignment:NSTextAlignmentCenter];
[_attributedLable setAttributedText:fullAttributedString];
NSRange rangeTC = [string rangeOfString:strTC];
NSRange rangePP = [string rangeOfString:strPP];
NSDictionary *ppActiveLinkAttributes = #{NSForegroundColorAttributeName : [UIColor blueColor], NSUnderlineStyleAttributeName: #(NSUnderlineStyleNone)};
NSDictionary *ppLinkAttributes = #{NSForegroundColorAttributeName : [UIColor blueColor], NSUnderlineStyleAttributeName: #(NSUnderlineStyleNone)};
_attributedLable.activeLinkAttributes = ppActiveLinkAttributes;
_attributedLable.linkAttributes = ppLinkAttributes;
NSURL *urlTC = [NSURL URLWithString:#"action://TC"];
NSURL *urlPP = [NSURL URLWithString:#"action://PP"];
[_attributedLable addLinkToURL:urlTC withRange:rangeTC];
[_attributedLable addLinkToURL:urlPP withRange:rangePP];
_attributedLable.textColor = [UIColor blackColor];
_attributedLable.delegate = self;
}
//Delegate Method
- (void)attributedLabel:(TTTAttributedLabel *)label didSelectLinkWithURL:(NSURL *)url {
if ([url.absoluteString isEqualToString:#"action://TC"]) {
NSLog(#"terms and conditions click");
}
else if ([url.absoluteString isEqualToString:#"action://PP"]){
NSLog(#"privacy policy click");
}
}
Note : Install Pod file : pod 'TTTAttributedLabel'

Answer 6

You can use an attribute "activeLinkAttributes"
NSMutableDictionary* attributes = [NSMutableDictionary dictionaryWithDictionary:self.attributedLabel.activeLinkAttributes];
[attributes setObject:(__bridge id)[UIColor blueColor].CGColor forKey:(NSString*)kCTForegroundColorAttributeName];
self.attributedLabel.activeLinkAttributes = attributes;

Answer 7

For reference, Not changing link color when tapping.
Just disable active link color by code below.
self.tttAttributedLabel.inactiveLinkAttributes = nil;