Programmatically create NSButton with multiline title

You can do it in IB.

But you can also do it in code

If it is for IOS

Create the button with enough height

theButton.frame.size.height = 50

set its title with a newline (\n) :

theButton.setTitle("On 2\nlines", for: .normal)

set the linebreak as characterwrap

theButton.titleLabel?.lineBreakMode = .byCharWrapping

If it is for MacOS

            theButton.frame.size.height = 50
            theButton.title = "On 2\nlines"
            theButton.lineBreakMode = .byCharWrapping

That should give you the desired result

Hm, so there is no option when text which not fit will be displayed in multiple lines autmatically? I should insert line feed manually…

Seems like simpler to use combo of NSButton without title and NSTextField to output multiline title for it…

That was just to illustrate.

But you don't need \n

            theButton.frame.size.height = 50 
            theButton.frame.size.width = 80

            theButton.title = "Too long to fit on a single line" 
            theButton.lineBreakMode = .byCharWrapping // .byWordWrapping may be better here

>...and set `.lineBreakMode` to `NSLineBreakMode.byWordWrapping` but it changes nothing.

I'm under the impression that applies to a label, not a button?

Show some code, pls.

KMT was right, I missed something.

I tested this, it works (IOS)

           theButton.frame.size.height = 50 
            theButton.frame.size.width = 80

            theButton.title = "Too long to fit on a single line" 
            theButton.titleLabel!.lineBreakMode = .byCharWrapping // .byWordWrapping may be better here

It is also very simple to do it in IB

set linebreak mode to word wrap or character wrap

For OSX, it seems more difficult

I had to use

theButton.cell!.lineBreakMode = .byCharWrapping

But it seems OSX computes height automatically, and I could not set it.

I had a trick to force height by adding \n at the end of button title, but result is so so.

To force height : you could use textured button (square)

https://stackoverflow.com/questions/17711836/unable-to-set-height-of-nsbutton

EDITED

I tested 3 solutions

// Sol1
        let button = NSButton(frame: NSRect(x: 150, y: 200, width: 80, height: 65))
        button.title =  "A long text button\n"
        button.cell!.lineBreakMode = .byWordWrapping
        window!.contentView?.addSubview(button)

// Sol2
        let button2 = NSButton(frame: NSRect(x: 250, y: 200, width: 80, height: 65))
        button2.title =  "A long text button"
        button2.cell!.lineBreakMode = .byWordWrapping
        window!.contentView?.addSubview(button2)

// Sol3
        let button3 = NSButton(frame: NSRect(x: 350, y: 200, width: 80, height: 65))
        button3.title =  "\nA long text button\n"
        button3.cell!.lineBreakMode = .byWordWrapping
        window!.contentView?.addSubview(button3)

Solution 3 works best, with text well centered and wrapped on 3 lines ; it is easy to add \n at the beginning and at the end of title string.

Solution 2 does not work: I just get one line of truncated text

Solution 1 wiites the text a bit too high in the button

And a 4th one, to create the action and target

        let button4 = NSButton(title: "\nA very long text button\n", target: self, action: nil)
        button4.frame = CGRect(x: 250, y: 300, width: 100, height: 60)
        button4.cell!.lineBreakMode = .byWordWrapping
        window!.contentView?.addSubview(button4)

Result equivalent to 3 (but widyh needs to be a bit larger)

Hope that helps.