CODEWITHSUNDEEP
iosobjective-ctttattributedlabel
StudentX
StudentX

Reputation: 2496

Link tap color for TTTAttributedLabel

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?

Upvotes: 18

Views: 14698

Answers (7)

Bomi Chen
Bomi Chen

Reputation: 122

For reference, Not changing link color when tapping.

Just disable active link color by code below.

self.tttAttributedLabel.inactiveLinkAttributes = nil;

Upvotes: 0

Hardik Thakkar
Hardik Thakkar

Reputation: 15951

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'

Upvotes: 3

pableiros
pableiros

Reputation: 16032

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]

Upvotes: 4

Andrew Romanov
Andrew Romanov

Reputation: 5076

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;

Upvotes: 1

Zorayr
Zorayr

Reputation: 24922

Swift 2 Solution:

enter image description here

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
}

Upvotes: 20

Alexander Supertramp
Alexander Supertramp

Reputation: 81

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];

Upvotes: 6

Pablo Carrillo Alvarez
Pablo Carrillo Alvarez

Reputation: 1182

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

Upvotes: 17

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