\n in UILabel not working

Question

My server return some text contain \n. I expect \n to print a new line but it does not work. Swift just printed the text and \n too. But if I declare string on my local place, e.g.

let test = "This is a \nbook"

It works! Swift and UILabel prints a new line, e.g.

This is a

book

Then my code i set

myLabel.numberOfLines = 0

It doesn't work as expected, but the local variable works.

I don't understand why though.

can you please post the example text you are trying to print here? So it can be tested with the same code — christopher.online, Oct 09 '17 at 11:46
Did the server perhaps return \\n ? That explains why it is printing \n — Huy Hoang, Oct 09 '17 at 11:53

score 1 · Answer 1 · answered Oct 09 '17 at 11:55

1

Try this on the string which you get from the server:

saleDescription["description"].string!.replacingOccurrences(of: "\\n", with: "\n")

answered Oct 09 '17 at 11:55

christopher.online

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score -1 · Answer 2 · answered Jan 17 '16 at 04:16

-1

myLabel.numberOfLines = -1

Making myLabel numberOfLines = -1 means "infinite" lines. I hope this helps.

answered Jan 17 '16 at 04:16

Richter B

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it's not work. if print or set it on UILabel .it always print "\n" – Sakonlapak Petcharayuttapan Jan 17 '16 at 04:49
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@SakonlapakPetcharayuttapan your approach it is correct. To allow multiple lines you need to set it to ZERO https://developer.apple.com/library/ios/documentation/UIKit/Reference/UILabel_Class/#//apple_ref/occ/instp/UILabel/numberOfLines – Leo Dabus Jan 17 '16 at 06:04
@SakonlapakPetcharayuttapan make sure your label frame has enough room to display all lines – Leo Dabus Jan 17 '16 at 06:06
@LeoDabus I has enough room to show all line. If i receive text from my server .It's always print /n in log and UILabel but if i declare a same text in local place . it works and show a new line for me – Sakonlapak Petcharayuttapan Jan 17 '16 at 06:28
@LeoDabus I tried to use that method then my string from server didn't split \n to array but it change \n to \\n in array[0] – Sakonlapak Petcharayuttapan Jan 17 '16 at 06:52
@SakonlapakPetcharayuttapan How would you expect someone to help you with such a complex string if you post it in a screenshot – Leo Dabus Jan 17 '16 at 16:04

score -1 · Answer 3 · answered Oct 09 '17 at 11:19

-1

When you have such a case, use a UITextView instead of UILabel

answered Oct 09 '17 at 11:19

iosMentalist

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For who downvoted, the textview was the only solution for this case. I was getting data from the server and while populating the text in UILabel the \n was not returning. – iosMentalist Oct 19 '17 at 11:22

\n in UILabel not working

3 Answers3