Swift how to add background color just around text in a label?

Question

How do you add a background color around each variable inside the interests variable? Just around text not the spaces.

var interests = \"\\(int01)     \\(int02)          


        

Answer 1

You can use a regex to find anything but white spaces, use a while loop to find its occurrences in a string and use those ranges to change the background color of an attributed string:

Swift 4

let mutable = NSMutableAttributedString(string: interests)
var startIndex = interests.startIndex
while let range = interests.range(of: "\\S+", options: .regularExpression, range: startIndex..

Note: If you would like to add space around your text you can change your regex to " \\S+ " and don't forget to add spaces at the begin and at the end of your original interests string.