UITapLabel

A subclass of UILabel, support to tap the specified text.

Tap opertaion accurates to pixel.

Use

• Set userInteractionEnabled to YES. (This is necessary)
• Conformed UITapLabelDelegate protocol.
• Calculate ranges of triggered text and assign to linkRanges property.

Just like below code:

// Set to YES to trigger gesture.
    self.tapLabel.userInteractionEnabled = YES;
    self.tapLabel.text = @"May the UITapLabel will help you.";
    self.tapLabel.delegate = self;
    self.tapLabel.linkRanges = @[[NSValue valueWithRange:NSMakeRange(0, 3)],    // 'May'
                                 [NSValue valueWithRange:NSMakeRange(4, 3)],    // 'the'
                                 [NSValue valueWithRange:NSMakeRange(8, 10)],   // 'UITapLabel'
                                 [NSValue valueWithRange:NSMakeRange(19, 4)],   // 'will'
                                 [NSValue valueWithRange:NSMakeRange(24, 4)],   // 'help'
                                 [NSValue valueWithRange:NSMakeRange(29, 3)]];  // 'you'

And then implement required method of UITapLabelDelegate.

- (void)tapLabel:(UITapLabel *)label didTapCharacterAtIndex:(NSUInteger)index
                                            withLinkContent:(NSString *)content
                                                ofLinkRange:(NSRange)linkRange
{
    UIAlertController *alter = [UIAlertController alertControllerWithTitle:@"Message"
                                                                   message:content
                                                            preferredStyle:UIAlertControllerStyleAlert];
    [alter addAction:[UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault handler:nil]];
    [self presentViewController:alter animated:YES completion:nil];
}

Also see my sample code: ViewController

To look like URL string, you can set attribute string to property attributedText.

Requirement

• Xcode 8.0
• iOS 7.0+ (iOS 8.0+ is better)

LICENSE

The MIT License.

Note

No add gesture to UITapLabel. It will make label trigger invalid.