Multiline NSAttributed String as UIButton Title

Question

My question is similar in theory to this one: iOS NSAttributedString on UIButton

I am looking to make the title of my button read as:

"An underlined string

Some text"

This needs to be done in swift and 100% programmatically.

I am attempting to do this by creating the underlined section using an NSMutableAttributedString and then appending that to the other text (which leads with a newline character). However, that gives me the error "Cannot assign value of type 'Void' ('aka'()') to type 'NSMutableAttributedString"

Code below:

var patientName = NSMutableAttributedString(string:"Patient Name", attributes: underlineAttributes)
var clickforinfomessage = NSMutableAttributedString(string: "\nclick for patient info")
clickforinfomessage = clickforinfomessage.appendAttributedString(patientName)
startVisitButton.setAttributedTitle(clickforinfomessage, forState: .Normal)

`clickforinfomessage = clickforinfomessage.appendAttributedString(patientName)` to `clickforinfomessage.appendAttributedString(patientName)`. There is no return in this method (`appendAttributedString()`) as says the error. — Larme, May 10 '16 at 06:21

score 18 · Accepted Answer · answered May 10 '16 at 06:44

18

You can do it this way:

let dict1 = [NSUnderlineStyleAttributeName: NSUnderlineStyle.StyleSingle.rawValue]

let attString = NSMutableAttributedString()
attString.appendAttributedString(NSAttributedString(string: "Patient Name\n", attributes: dict1))
attString.appendAttributedString(NSAttributedString(string: "click for patient info", attributes: nil))
startVisitButton.setAttributedTitle(attString, forState: .Normal)
startVisitButton.titleLabel?.numberOfLines = 0
startVisitButton.titleLabel?.lineBreakMode = NSLineBreakMode.ByWordWrapping

And result will be:

answered May 10 '16 at 06:44

Dharmesh Kheni

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How to change the title size here ? – Abhishek Mitra Aug 01 '17 at 08:32
You can add font size attribute. @AbhishekMitra – Dharmesh Kheni Aug 02 '17 at 08:59
In iOS 11 setting numberOfLines = 0 fixed the issue. – Kaptain May 04 '18 at 20:17
@DharmeshKheni How to apply center alignment for 2nd line text? – Mohd Sadham Nov 26 '18 at 08:17

Umar Farooque · Answer 2 · 2017-07-26T11:56:03.150

0

Just set the number of line for the button's title label

let attrTet = NSMutableAttributedString(string: "Test is \ne next line.", attributes: nil)
testButton.titleLabel?.numberOfLines = 0
testButton.setTitle(attrTet.string, forState: .Normal)

Code View:

Output:

edited Jul 26 '17 at 11:56

answered May 10 '16 at 06:17

Umar Farooque

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Doesn't work. The documentation clearly mentions that the attributedTitle is assumed to be single line. – zakishaheen Jul 25 '17 at 16:11
Maybe you are not trying it properly this works 100%, make sure that your button doest have a fixed height. – Umar Farooque Jul 26 '17 at 11:54
if i just want to underline bottom of button, not bottom of text, how to do it? TKs – famfamfam Nov 23 '18 at 16:47

Multiline NSAttributed String as UIButton Title

2 Answers2