Change color within string

Question

I want to know how to change the colour of substring within a string. So for example, I have the following original black colour substring:

NSString *original=@"Frank Megan Timmy
                    Marcus Andrea Matt
                   Jamie Lauren Marcus";

Let us assume that the user has done something and I would like to make Marcus Andrea Matt a RED colour (for example) within the original string and keep everything else the same.

Can anyone tell me how this can do be done?

@Mar0ux Thank you for the reply! Can you please explain how or provide an example? Much appreciated! — Teddy13, Jun 07 '13 at 09:36
@Teddy13 :) at least attempt a solution/read the documentation/search before asking for code. Also, pl don't ask for code. — maroux, Jun 07 '13 at 09:38

score 1 · Answer 1 · answered Jun 07 '13 at 10:00

NSMutableAttributedString * string = [[NSMutableAttributedString alloc] initWithString:@"Frank Megan Timmy Marcus Andrea Matt Jamie Lauren Marcus"];
[string addAttribute:NSForegroundColorAttributeName value:[UIColor greenColor] range:NSMakeRange(0,18)];
[string addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(18,18)];
[string addAttribute:NSForegroundColorAttributeName value:[UIColor blueColor] range:NSMakeRange(36,20)];

UILabel *label=[[UILabel alloc] initWithFrame:CGRectMake(0, 0, 250, 80)];
[label setLineBreakMode:NSLineBreakByWordWrapping];
[label setNumberOfLines:0];
[label setAttributedText:string];

[self.view addSubview:label];

score 0 · Answer 2 · answered Jun 07 '13 at 09:42

0

Use NSMutableAttributedString to do this. Change the type of original to NSMutableAttributedString and use

[original addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:yourRange];

answered Jun 07 '13 at 09:42

Roshan

1,937
1
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25

score 0 · Answer 3 · answered Jun 07 '13 at 09:44

Please find below solution:

NSString *original=@"Frank Megan Timmy
                    Marcus Andrea Matt
                   Jamie Lauren Marcus";
NSMutableAttributedString* attrStr = [NSMutableAttributedString attributedStringWithString:original];
/ now we only change the color of "Frank"
[attrStr setTextColor:[UIColor redColor] range:NSMakeRange(0,5)];

Change color within string

3 Answers3