Display Array of Strings into a String of multi line - Swift

Question

I have an array of strings, which i need to convert into single String with multi line

 var array = ["A","B","C","D","E"]
 var multiLineString = //convert array to a string
 println("\(multiLineString)")

The output should be:

  A 
  B 
  C 
  D 
  E

possible duplicate of Concatenate String in Swift

Antonio
– Antonio

2014-10-27 09:42:47 +00:00
Commented Oct 27, 2014 at 9:42 — Antonio
– Antonio, Commented Oct 27, 2014 at 9:42

Tom · Accepted Answer · 2014-10-27 09:46:54Z

3

That should be something like:

var array = ["A","B","C","D","E"]
var multiLineString = join("\n", array)
println("\(multiLineString)")

Note that the console does not print this on multiple lines.

UPDATE: To get the height of the label to display this string:

let label = UILabel()
label.text = multiLineString
label.numberOfLines = 0
label.lineBreakMode = NSLineBreakMode.ByWordWrapping
label.sizeToFit()
println("Height: \(label.frame.height)")

edited Oct 27, 2014 at 9:46

answered Oct 27, 2014 at 9:30

Tom

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2 Comments

iPhone Guy Over a year ago

i need to get the total height of a string. so that i can display string in multi lines in a cell. Does 'multiLineString' gives the correct height?

Tom Over a year ago

@iPhoneGuy see my updated answer how to get the correct height of a label displaying this string.

Kirsteins · Accepted Answer · 2014-10-27 09:25:02Z

1

Try join:

var array = ["A","B","C","D","E"]
var multiLineString = join("\n", array)
println("\(multiLineString)")

answered Oct 27, 2014 at 9:25

Kirsteins

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3 Comments

iPhone Guy Over a year ago

i need to get the total height of a string. so that i can display string in multi lines in a cell. Does 'multiLineString' gives the correct height?

Martin R Over a year ago

@iPhoneGuy: You seem to mix different problems here. A string is just a collection of characters, unrelated to the visual represention. The height depends on other parameters, such as the selected font. Perhaps this stackoverflow.com/questions/7174007/… (and the related questions) is what you are looking for.

Tom Over a year ago

Correct @MartinR. However, I updated my answer above to display how you can get the height of a label displaying the string.

kl.woon · Accepted Answer · 2016-04-04 09:06:03Z

1

Since Swift 2.0 this would produce the error:

Cannot invoke join with an argument list of type (String, [String])

Use this instead:

array.joinWithSeparator("\n")

answered Apr 4, 2016 at 9:06

kl.woon

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