UILabel: 2 lines text shrinking

Question

By design (!) I have two lines title text which I cannot break:

JustWord
VeryLongWordWithoutSpaces

On big iPhones (6 and 6 Plus) text works great,
but when I test on smaller iPhone (5 or less) it looks like:

JustWord
VeryLongWordWi...

I cannot find a way how to shrink the text in UILabel.
Cutting and truncating are not possible in my situation.

Requirements:
Auto Layout, no Storyboards, Swift 2.0, iOS 8.0+

Answer 1

做到这一点的两种主要方法是设置最小字体大小或最小字体比例。

Answer 2

Please try adjustsFontSizeToFitWidth: property for UIlabel. I have tried this and font is setting in one line and font size is automatically adjust.