How do I uses addAttribute and NSRANGE in swift 3

Question

Hi I'm trying to use addAttribute in Swift3.

I want set bold only IDNAME.

Here is what I am trying to this.

let boldUsername = NSMutableAttributedString(string: "IDNAME hi nice 2 meet you :D #HELLOW")


//            boldUsername.addAttribute(NSFontAttributeName, value: UIFont(name: "SFUIText-Bold", size: 14)!, range: (boldUsername.string as NSString).range(of: " "))

            boldUsername.addAttribute(NSFontAttributeName, value: UIFont(name: "SFUIText-Bold", size: 14)!, range: NSRange(location: 0, length: 5))

How do I get index of the IDNAME i.e different every time?

-> Is there a way to split space and get index?

Can you please explain "How do I get string count", what does it mean? — Nirav D, Oct 01 '16 at 09:17
Have you checked [this](http://stackoverflow.com/a/32229033/6541007) ? — OOPer, Oct 01 '16 at 09:29
@NiravD I want get index of strings. e.g > "IDNAME hi ~~~" I is index 0. E is index 5. So How do I get the end of ID's index? Thanks for the reply — Shawn Baek, Oct 01 '16 at 16:31
you means idname is run time name and you want the range of its. right? — Nirav D, Oct 01 '16 at 16:35

score 23 · Accepted Answer · answered Oct 01 '16 at 16:46

23

You need to do something like this.

let personName = "Black"
let wholeStr = "\(personName) hi nice 2 meet you :D #HELLOW"
let boldUsername = NSMutableAttributedString(string: wholeStr)
boldUsername.addAttribute(NSFontAttributeName, value: UIFont(name: "SFUIText-Bold", size: 14)!, range: (wholeStr as NSString).range(of: personName))

answered Oct 01 '16 at 16:46

Nirav D

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very easy to understand. nice answer – Vatsal Shukla Oct 24 '16 at 11:05
@Vats Welcome & Thanks :) – Nirav D Oct 24 '16 at 11:10
Might wanna change `value: UIFont(name: "SFUIText-Bold", size: 14)!` to `value: UIFont.boldSystemFont(ofSize: 14)` - pretty sure the former will crash at runtime (force-unwrapping a nil optional). – worthbak May 01 '17 at 16:29
@worthbak Thanks for the suggestion mate :), but this question about `addAttribute` and range – Nirav D May 01 '17 at 16:33

How do I uses addAttribute and NSRANGE in swift 3

1 Answers1