iOS和Xcode 6：按钮上的自动布局文本缩放

Question

I have a Today Extension with a button and UIImage. The button and image scale and center themselves correctly except the button's text is not scaled. I am writing this extension in Swift. I have tried these so far:

myButton.titleLabel.adjustsFontSizeToFitWidth = true
myButton.adjustsFontSizeToFitWidth = true

Both return errors.

Answer 1

Without seeing more code or the specific errors, the only thing I can see is that titleLabel is an optional. As written, the compiler would show the error 'UILabel? does not have a member named 'adjustsFontSizeToFitWidth' 'UILabel? does not have a member named 'adjustsFontSizeToFitWidth' . Writing the line as myButton.titleLabel?.adjustsFontSizeToFitWidth = true should fix the error.

Also, UIButton doesn't have a member named 'adjustFontSizeToFitWidth' so the second line would throw the same error as above.

Try fixing that error as indicated above and see if your AutoLayout issue works.