UILabel Text Color Change

Question

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output should be like this

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UILabel *name = [[UILabel alloc]initWithFrame:CGRectMake(5,10,300,20)];
name.text =[Language localizedStringForKey:@"Name *"];
name.font = [UIFont systemFontOfSize:14.0f];
[name setBackgroundColor:[UIColor clearColor]];
[self.View addSubview:name];

How to change the color of one letter? I only need label text change.

NSAttributedString ... see http://stackoverflow.com/questions/3482346/how-do-you-use-nsattributedstring — Mike Pollard, May 22 '13 at 12:57
http://stackoverflow.com/questions/3786528/iphone-ipad-how-exactly-use-nsattributedstring — ajithmn89, May 22 '13 at 12:57
@Senthil check my this answer which used for set multiple color to `UILable` http://stackoverflow.com/questions/13579209/two-colors-for-uilabel-text/13579318#13579318 — Paras Joshi, May 22 '13 at 13:13

score 4 · Accepted Answer · edited May 23 '17 at 12:19

Answer : NSAttributedString

Check this Answer : Answer for iOS5 and iOS6 also.

For Eg :

NSMutableAttributedString * string = [[NSMutableAttributedString alloc] initWithString:@"Name  *"];
[string addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(5,1)];

Update :

Make this change

[string addAttribute:(NSString*)kCTForegroundColorAttributeName 
                value:(id)[[UIColor redColor] CGColor]
                range:NSMakeRange(5,1)];

Add following after #import line to your .m file :

#if (TARGET_OS_EMBEDDED || TARGET_OS_IPHONE)
#import <CoreText/CoreText.h>
#else
#import <AppKit/AppKit.h>
#endif

GoodLuck !!!

score 1 · Answer 2 · answered May 22 '13 at 13:04

Try to use this one.This will work on IOS6 or later version.

UILabel *name = [[UILabel alloc]initWithFrame:CGRectMake(5,10,300,20)];
name.font = [UIFont systemFontOfSize:14.0f];
[name setBackgroundColor:[UIColor clearColor]];
[self.view addSubview:name];

NSMutableAttributedString *attrStr = [[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"Name *"]];
[attrStr addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(5, 1)];
name.attributedText = attrStr;

OP stated that he is developing for iOS 4.3 and onwards. attributedText property won't work for iOS 4 and 5. — Bartu, May 22 '13 at 13:06

score 0 · Answer 3 · answered May 22 '13 at 13:01

Using NSAttributedString in default UILabel is available after iOS 6.0.

In order to support below iOS 6.0, you need to use TTTAttributedLabel. You can find usage and installation instructions on the readme file. Also note that it also uses NSAttributedString. So you can combine TTTAttributedLabel + UILabel to support both iOS 6+ and below.

Of course you can also create your own subclass of UILabel.

score 0 · Answer 4 · answered Feb 14 '18 at 15:41

Swift 4
(Note: notation for attributed string key is changed in swift 4)

Here is an extension for NSMutableAttributedString, that add/set color on string/text.

extension NSMutableAttributedString {

    func setColor(color: UIColor, forText stringValue: String) {
        let range: NSRange = self.mutableString.range(of: stringValue, options: .caseInsensitive)
        self.addAttribute(NSAttributedStringKey.foregroundColor, value: color, range: range)
    }

}

Now, try above extension with UILabel and see result

let label = UILabel()
label.frame = CGRect(x: 40, y: 100, width: 280, height: 200)
let title = "Name"
let star = "*"
let stringValue = "\(title) \(star)"
label.textColor = UIColor.lightGray
label.numberOfLines = 0
let attributedString: NSMutableAttributedString = NSMutableAttributedString(string: stringValue)
attributedString.setColor(color: UIColor.red, forText: star)   // or use direct value for text "red"
label.font = UIFont.systemFont(ofSize: 26)
label.attributedText = attributedString
self.view.addSubview(label)

score 0 · Answer 5 · answered Feb 16 '18 at 08:19

Try This:

NSMutableAttributedString *newStr = [[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"Name *"]];
[newStr addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(5, 1)];
label.attributedText = newStr;

score -1 · Answer 6 · answered May 22 '13 at 12:56

-1

You should use NSAttributedString to be able to change attributes of single characters.

answered May 22 '13 at 12:56

Marcin Kuptel

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UILabel Text Color Change

6 Answers6