How to change the UILabel content by tapping?

Question

I add a tap gesture on my label but I couldn't retrieve the tapped label in the selector function. I mean, for example, my function is like this:

-(void)changeLabel:(UIGestureRecognizer *)sender{}

If this gesture is added on a imageview, I can get the imageview by using sender.view.
But since it's a uilabel I don't know to get it and then change text content.

Hope my question is clear...

using `UIButtonView` would be great since buttons are made for tap and any such events while `UILabelView` is to just show a text i.e to notify user. — Ayush, Aug 09 '13 at 20:21

score 2 · Answer 1 · answered Aug 09 '13 at 20:16

Set the interaction to enabled, then add it as you normally would.

My example:

- (void)viewDidLoad
 {
    [super viewDidLoad];
    self.mainLabel.text = @"This is my label";
    UITapGestureRecognizer *tapRecongizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(changeText)];
    self.mainLabel.userInteractionEnabled = YES;
    [self.mainLabel addGestureRecognizer:tapRecongizer];
}

-(void)changeText
{
    NSArray *randomNames = @[@"Jim", @"Bob", @"John", @"Peter"];
    self.mainLabel.text = [randomNames objectAtIndex:arc4random() % 4];
}

score 1 · Answer 2 · answered Aug 09 '13 at 20:08

1

Set your UILabel's userInteractionEnabled property to YES. I believe this property is defaulted to NO on new instances of UILabel.

self.yourLabel.userInteractionEnabled = YES;

answered Aug 09 '13 at 20:08

hgwhittle

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score 0 · Answer 3 · answered Aug 09 '13 at 20:18

0

Add a clear button to on top of your UILabel with an identical frame

Then create an IBAction for the button touch, and handle changing the labels text in there.

answered Aug 09 '13 at 20:18

RyanG

4,393
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This would be a bit of a hack. There are systems in place to do this correctly, using the way the system is intended to work. – tooluser Jul 16 '14 at 17:19

score 0 · Answer 4 · answered Aug 09 '13 at 20:59

0

You could add a UIButton above the label that has the same frame as the label and very low opacity, and have the button perform the action.

answered Aug 09 '13 at 20:59

user2666713

200
9

This would be a bit of a hack. There are systems in place to do this correctly, using the way the system is intended to work. – tooluser Jul 16 '14 at 17:18

How to change the UILabel content by tapping?

4 Answers4