How to set backgroundColor of UISegmentedControl to white in iOS 13

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温柔的废话
温柔的废话 2021-02-05 07:08

iOS 13 introduced some changes to the UISegmentedControl including a really nice animation when switching the selected segment. However I\'m noticing that it\'s not displaying t

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  • 2021-02-05 07:53

    In Xamarin.iOS this worked for me:

    class MySegmentedControl : UISegmentedControl
    {
        int insertedIndex = 0;
    
        public override void InsertSubview(UIView view, nint atIndex)
        {
            base.InsertSubview(view, atIndex);
    
            if (insertedIndex == 2 || insertedIndex == 3)
                view.Hidden = true;
    
            insertedIndex++;
        }
    }
    
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  • 2021-02-05 08:01

    Works for me (Swift 5).

    let background = myColors.background
    let selectedColor = myColors.foreground
    
    if #available(iOS 13.0, *)
    {
        segmentedControl.tintColor = background
        segmentedControl.backgroundColor = background
        segmentedControl.selectedSegmentTintColor = selectedColor
        segmentedControl.setTitleTextAttributes([.foregroundColor: selectedColor as Any], for: .normal)
        segmentedControl.setTitleTextAttributes([.foregroundColor: background as Any], for: .selected)
    }
    else
    {
        segmentedControl.tintColor = background
        segmentedControl.backgroundColor = selectedColor
        segmentedControl.layer.cornerRadius = 4
    }
    
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  • 2021-02-05 08:02

    SWIFT 3 & 4+

    From this answer https://stackoverflow.com/a/31652184/3249196 , if you want an all white background without the grey overlay justr replace tintColor and backgroundColor with UIColor.white

    extension UISegmentedControl {
        func removeBorders() {
            setBackgroundImage(imageWithColor(color: backgroundColor!), for: .normal, barMetrics: .default)
            setBackgroundImage(imageWithColor(color: tintColor!), for: .selected, barMetrics: .default)
            setDividerImage(imageWithColor(color: UIColor.clear), forLeftSegmentState: .normal, rightSegmentState: .normal, barMetrics: .default)
        }
    
        // create a 1x1 image with this color
        private func imageWithColor(color: UIColor) -> UIImage {
            let rect = CGRect(x: 0.0, y: 0.0, width:  1.0, height: 1.0)
            UIGraphicsBeginImageContext(rect.size)
            let context = UIGraphicsGetCurrentContext()
            context!.setFillColor(color.cgColor);
            context!.fill(rect);
            let image = UIGraphicsGetImageFromCurrentImageContext();
            UIGraphicsEndImageContext();
            return image!
        }
    }
    
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  • 2021-02-05 08:05

    I have the same issue and there is no cool way to resolve it. So I did this small workaround. I dont like it and I am not proud of it, but it works.

    func fixBackgroundSegmentControl( _ segmentControl: UISegmentedControl){
        if #available(iOS 13.0, *) {
            //just to be sure it is full loaded
            DispatchQueue.main.asyncAfter(deadline: .now() + 0.1) { 
                for i in 0...(segmentControl.numberOfSegments-1)  {
                    let backgroundSegmentView = segmentControl.subviews[i]
                    //it is not enogh changing the background color. It has some kind of shadow layer 
                    backgroundSegmentView.isHidden = true 
                }
            }
        }
    }
    
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