UISegmentedControl text with multiple lines

问题

Is there any possibility to make UISegmentedControl with multiple lines of text in iOs 9+?

So far i've tryed:

Variants from SO topics: This, this and this one

Make an extension:

extension UISegmentedControl
{
    func makeMultiline(numberOfLines: Int)
    {
        for segment in self.subviews
        {
            let labels = segment.subviews.filter { $0 is UILabel }  // [AnyObject]
            labels.map { ($0 as UILabel).numberOfLines = numberOfLines }    
        }
    }
}

Inherit from UISegmentedControl and set new class to SegmentedControl in Identity Inspector

class MultilineSegmentedControl: UISegmentedControl
{
    override func didMoveToSuperview()
    {
        for segment in subviews
        {
            for subview in segment.subviews
            {
                if let segmentLabel = subview as? UILabel
                {
                    segmentLabel.numberOfLines = 2
                }
            }
        }
    }
}

Set image with text instead of title and change frame of UISegmentedControl in
```
viewDidLayoutSubviews()
```
method. It makes UISegmentedControl height larger, but image keeps it's height as if UISegmentedControl didn't enlarge and on first interaction UISegmentedControl shrinks to it's default height.

回答1:

Maybe it's a bit late but here is my subclass to resolve this problem in swift 3 :

@IBDesignable class MySegmentedControl: UISegmentedControl {

    @IBInspectable var height: CGFloat = 29 {
        didSet {
            let centerSave = center
            frame = CGRect(x: frame.minX, y: frame.minY, width: frame.width, height: height)
            center = centerSave
        }
    }

    @IBInspectable var multilinesMode: Bool = false

    override func layoutSubviews() {
        super.layoutSubviews()
        for segment in self.subviews {
            for subview in segment.subviews {
                if let segmentLabel = subview as? UILabel {
                    segmentLabel.frame = CGRect(x: 0, y: 0, width: segmentLabel.frame.size.width, height: segmentLabel.frame.size.height * 1.6)
                    if (multilinesMode == true)
                    {
                        segmentLabel.numberOfLines = 0
                    }
                    else
                    {
                        segmentLabel.numberOfLines = 1
                    }
                }
            }
        }
    }

}

回答2:

Try out below code, find out all segmentedControl sub UILabel and set numberOfLines.

for segmentViews in segmentedControl.subviews {
    for segmentLabel in segmentViews.subviews {
        if segmentLabel is UILabel {
            (segmentLabel as! UILabel).numberOfLines = 0
        }
    }
}

来源：https://stackoverflow.com/questions/38877276/uisegmentedcontrol-text-with-multiple-lines

标签

ios

swift

uisegmentedcontrol