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)
To make a multi-line text in UIButton, you insert a new line character ( \n ) wherever you want in button title and set lineBreakMode to byWordWrapping . You can adjust text alignment with . textAlignment .
Attributed strings are character strings that have attributes for individual characters or ranges of characters. Attributes provide traits like visual styles for display, accessibility for guided access, and hyperlink data for linking between data sources.
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:
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