Question

我在下面定义了UILabel：

let disclaimerLabel : TTTAttributedLabel = {
    let label = TTTAttributedLabel(frame: CGRectZero)
    label.textColor =  UIColor.whiteColor()
    label.font = UIFont.boldSystemFontOfSize(13)
    label.textAlignment = .Center
    label.numberOfLines = 1
    label.minimumScaleFactor = 0.01
    label.adjustsFontSizeToFitWidth = true
    label.text = "By logging in, you agree to our Privacy Policy and T&C."
    return label
}()

现在的问题是，在iphone 4等旧款手机上，文字行不适合一行。我认为这可以通过label.adjustsFontSizeToFitWidth = true行解决，但不是适当缩小文本大小，标签文本显示如下：By logging in, you agree to our Privacy Policy...我不能让这个标签有多行，因此我不能使用numberofLines = 2或label.lineBreakMode = NSLineBreakMode.ByTruncatingTail

在这种情况下绝对必要的是整行文字在一行中可见。我怎样才能做到这一点？

Answer 1

If your device is exactly iPhone 4 (so it runs iOS 7.0 or less), that's the point.

The property .adjustsFontSizeToFitWidth is available on iOS SDK 8.0 and later:

https://developer.apple.com/reference/uikit/uilabel/1620546-adjustsfontsizetofitwidth

If you need one line only for a label, use .minimumScaleFactor for ios lower than 8.0 instead.

adjustsFontSizeToFitWidth无法正常工作UILabel

1 个答案: