ios - UILabel text truncation vs. line breaks in text

Question

I have a UILabel that is put as titleView in the navigation bar. I want it to have 2 lines, where the first line can be truncated and the second is center aligned.

In code it looks more less like this:

    let label = UILabel()
    let text = NSAttributedString(string: "Long long long text
second line")
    label.attributedText = text
    label.textAlignment = .Center
    label.numberOfLines = 0
    label.lineBreakMode = .ByTruncatingTail
    label.sizeToFit()

    self.navigationItem.titleView = label

The effect in case of the first line text is not exceeding available space is like this:

It's pretty good, but when the first line text is longer than:

let text = NSAttributedString(string: "Very very very very very long text
second line")

I want to achieve like below.

How it can be done? I experimented with numberOfLines and lineBreakMode but it's not worked.

Answer 1

change your line breakmode to ByTruncatingMiddle instead of ByTruncatingTail. Something like below,

    label.lineBreakMode = .ByTruncatingMiddle

Hope this will help :)