blocks|key|3939489|text|我试过了这个变通方法，它对我很有效。以下是Objective-C版本：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3939490|@interface+UISegmentedControl+(Common)
-+(void)ensureiOS12Style;
@end|code-block|syntax|javascript|3939491|@implementation+UISegmentedControl+(Common)
-+(void)ensureiOS12Style+{
++++//+UISegmentedControl+has+changed+in+iOS+13+and+setting+the+tint
++++//+color+now+has+no+effect.
++++if+(@available(iOS+13,+*))+{
++++++++UIColor+*tintColor+=+[self+tintColor];
++++++++UIImage+*tintColorImage+=+[self+imageWithColor:tintColor];
++++++++//+Must+set+the+background+image+for+normal+to+something+(even+clear)+else+the+rest+won't+work
++++++++[self+setBackgroundImage:[self+imageWithColor:self.backgroundColor+?+self.backgroundColor+:+[UIColor+clearColor]]+forState:UIControlStateNormal+barMetrics:UIBarMetricsDefault];
++++++++[self+setBackgroundImage:tintColorImage+forState:UIControlStateSelected+barMetrics:UIBarMetricsDefault];
++++++++[self+setBackgroundImage:[self+imageWithColor:[tintColor+colorWithAlphaComponent:0.2]]+forState:UIControlStateHighlighted+barMetrics:UIBarMetricsDefault];
++++++++[self+setBackgroundImage:tintColorImage+forState:UIControlStateSelected%7CUIControlStateSelected+barMetrics:UIBarMetricsDefault];
++++++++[self+setTitleTextAttributes:@{NSForegroundColorAttributeName:+tintColor,+NSFontAttributeName:+[UIFont+systemFontOfSize:13]}+forState:UIControlStateNormal];
++++++++[self+setDividerImage:tintColorImage+forLeftSegmentState:UIControlStateNormal+rightSegmentState:UIControlStateNormal+barMetrics:UIBarMetricsDefault];
++++++++self.layer.borderWidth+=+1;
++++++++self.layer.borderColor+=+[tintColor+CGColor];
++++}
}

-+(UIImage+*)imageWithColor:+(UIColor+*)color+{
++++CGRect+rect+=+CGRectMake(0.0f,+0.0f,+1.0f,+1.0f);
++++UIGraphicsBeginImageContext(rect.size);
++++CGContextRef+context+=+UIGraphicsGetCurrentContext();
++++CGContextSetFillColorWithColor(context,+[color+CGColor]);
++++CGContextFillRect(context,+rect);
++++UIImage+*theImage+=+UIGraphicsGetImageFromCurrentImageContext();
++++UIGraphicsEndImageContext();
++++return+theImage;
}
@end|3939492|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|D|7|M|8|@]|9|@]|A|$E|F]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I've tried the workaround and it works great for me. Here's the Objective-C version:

<pre><code>@interface UISegmentedControl (Common)
- (void)ensureiOS12Style;
@end
</code></pre>

<pre><code>@implementation UISegmentedControl (Common)
- (void)ensureiOS12Style {
 // UISegmentedControl has changed in iOS 13 and setting the tint
 // color now has no effect.
 if (@available(iOS 13, *)) {
 UIColor *tintColor = [self tintColor];
 UIImage *tintColorImage = [self imageWithColor:tintColor];
 // Must set the background image for normal to something (even clear) else the rest won't work
 [self setBackgroundImage:[self imageWithColor:self.backgroundColor ? self.backgroundColor : [UIColor clearColor]] forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];
 [self setBackgroundImage:tintColorImage forState:UIControlStateSelected barMetrics:UIBarMetricsDefault];
 [self setBackgroundImage:[self imageWithColor:[tintColor colorWithAlphaComponent:0.2]] forState:UIControlStateHighlighted barMetrics:UIBarMetricsDefault];
 [self setBackgroundImage:tintColorImage forState:UIControlStateSelected|UIControlStateSelected barMetrics:UIBarMetricsDefault];
 [self setTitleTextAttributes:@{NSForegroundColorAttributeName: tintColor, NSFontAttributeName: [UIFont systemFontOfSize:13]} forState:UIControlStateNormal];
 [self setDividerImage:tintColorImage forLeftSegmentState:UIControlStateNormal rightSegmentState:UIControlStateNormal barMetrics:UIBarMetricsDefault];
 self.layer.borderWidth = 1;
 self.layer.borderColor = [tintColor CGColor];
 }
}

- (UIImage *)imageWithColor: (UIColor *)color {
 CGRect rect = CGRectMake(0.0f, 0.0f, 1.0f, 1.0f);
 UIGraphicsBeginImageContext(rect.size);
 CGContextRef context = UIGraphicsGetCurrentContext();
 CGContextSetFillColorWithColor(context, [color CGColor]);
 CGContextFillRect(context, rect);
 UIImage *theImage = UIGraphicsGetImageFromCurrentImageContext();
 UIGraphicsEndImageContext();
 return theImage;
}
@end
</code></pre>

blocks|key|3935747|text|这是我对乔纳森的Xamarin.iOS+(C#)的回答，但修正了图像大小。就像Cœur对科林·布莱克的回答所做的评论一样，我将除分隔符之外的所有图像都设置为分段控件的大小。分隔符的高度是分段的1倍。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3935748|public+static+UIImage+ImageWithColor(UIColor+color,+CGSize+size)
{
++++var+rect+=+new+CGRect(0,+0,+size.Width,+size.Height);
++++UIGraphics.BeginImageContext(rect.Size);
++++var+context+=+UIGraphics.GetCurrentContext();
++++context.SetFillColor(color.CGColor);
++++context.FillRect(rect);
++++var+image+=+UIGraphics.GetImageFromCurrentImageContext();
++++UIGraphics.EndImageContext();
++++return+image;
}

//+https://stackoverflow.com/a/56465501/420175
public+static+void+ColorSegmentiOS13(UISegmentedControl+uis,+UIColor+tintColor,+UIColor+textSelectedColor,+UIColor+textDeselectedColor)
{
++++if+(!UIDevice.CurrentDevice.CheckSystemVersion(13,+0))
++++{
++++++++return;
++++}

++++UIImage+image(UIColor+color)
++++{
++++++++return+ImageWithColor(color,+uis.Frame.Size);
++++}

++++UIImage+imageDivider(UIColor+color)
++++{
++++++++return+ImageWithColor(color,+1,+uis.Frame.Height);
++++}

++++//+Must+set+the+background+image+for+normal+to+something+(even+clear)+else+the+rest+won't+work
++++//setBackgroundImage(UIImage(color:+backgroundColor+??+.clear),+for:+.normal,+barMetrics:+.default)
++++uis.SetBackgroundImage(image(UIColor.Clear),+UIControlState.Normal,+UIBarMetrics.Default);

++++//+setBackgroundImage(tintColorImage,+for:+.selected,+barMetrics:+.default)
++++uis.SetBackgroundImage(image(tintColor),+UIControlState.Selected,+UIBarMetrics.Default);

++++//+setBackgroundImage(UIImage(color:+tintColor.withAlphaComponent(0.2)),+for:+.highlighted,+barMetrics:+.default)
++++uis.SetBackgroundImage(image(tintColor.ColorWithAlpha(0.2f)),+UIControlState.Highlighted,+UIBarMetrics.Default);

++++//+setBackgroundImage(tintColorImage,+for:+[.highlighted,+.selected],+barMetrics:+.default)
++++uis.SetBackgroundImage(image(tintColor),+UIControlState.Highlighted+%7C+UIControlState.Selected,+UIBarMetrics.Default);

++++//+setTitleTextAttributes([.foregroundColor:+tintColor,+NSAttributedString.Key.font:+UIFont.systemFont(ofSize:+13,+weight:+.regular)],+for:+.normal)
++++//+Change:+support+distinct+color+for+selected/de-selected;+keep+original+font
++++uis.SetTitleTextAttributes(new+UITextAttributes()+{+TextColor+=+textDeselectedColor+},+UIControlState.Normal);+//Font+=+UIFont.SystemFontOfSize(13,+UIFontWeight.Regular)
++++uis.SetTitleTextAttributes(new+UITextAttributes()+{+TextColor+=+textSelectedColor,+},+UIControlState.Selected);+//Font+=+UIFont.SystemFontOfSize(13,+UIFontWeight.Regular)

++++//+setDividerImage(tintColorImage,+forLeftSegmentState:+.normal,+rightSegmentState:+.normal,+barMetrics:+.default)
++++uis.SetDividerImage(imageDivider(tintColor),+UIControlState.Normal,+UIControlState.Normal,+UIBarMetrics.Default);

++++//layer.borderWidth+=+1
++++uis.Layer.BorderWidth+=+1;

++++//layer.borderColor+=+tintColor.cgColor
++++uis.Layer.BorderColor+=+tintColor.CGColor;
}|code-block|syntax|javascript|3935749|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Here is my take on Jonathan.'s answer for Xamarin.iOS (C#), but with fixes for image sizing. As with Cœur's comment on Colin Blake's answer, I made all images except the divider the size of the segmented control. The divider is 1xheight of the segment. 

<pre class="lang-cs prettyprint-override"><code>public static UIImage ImageWithColor(UIColor color, CGSize size)
{
 var rect = new CGRect(0, 0, size.Width, size.Height);
 UIGraphics.BeginImageContext(rect.Size);
 var context = UIGraphics.GetCurrentContext();
 context.SetFillColor(color.CGColor);
 context.FillRect(rect);
 var image = UIGraphics.GetImageFromCurrentImageContext();
 UIGraphics.EndImageContext();
 return image;
}

// https://stackoverflow.com/a/56465501/420175
public static void ColorSegmentiOS13(UISegmentedControl uis, UIColor tintColor, UIColor textSelectedColor, UIColor textDeselectedColor)
{
 if (!UIDevice.CurrentDevice.CheckSystemVersion(13, 0))
 {
 return;
 }

 UIImage image(UIColor color)
 {
 return ImageWithColor(color, uis.Frame.Size);
 }

 UIImage imageDivider(UIColor color)
 {
 return ImageWithColor(color, 1, uis.Frame.Height);
 }

 // Must set the background image for normal to something (even clear) else the rest won't work
 //setBackgroundImage(UIImage(color: backgroundColor ?? .clear), for: .normal, barMetrics: .default)
 uis.SetBackgroundImage(image(UIColor.Clear), UIControlState.Normal, UIBarMetrics.Default);

 // setBackgroundImage(tintColorImage, for: .selected, barMetrics: .default)
 uis.SetBackgroundImage(image(tintColor), UIControlState.Selected, UIBarMetrics.Default);

 // setBackgroundImage(UIImage(color: tintColor.withAlphaComponent(0.2)), for: .highlighted, barMetrics: .default)
 uis.SetBackgroundImage(image(tintColor.ColorWithAlpha(0.2f)), UIControlState.Highlighted, UIBarMetrics.Default);

 // setBackgroundImage(tintColorImage, for: [.highlighted, .selected], barMetrics: .default)
 uis.SetBackgroundImage(image(tintColor), UIControlState.Highlighted | UIControlState.Selected, UIBarMetrics.Default);

 // setTitleTextAttributes([.foregroundColor: tintColor, NSAttributedString.Key.font: UIFont.systemFont(ofSize: 13, weight: .regular)], for: .normal)
 // Change: support distinct color for selected/de-selected; keep original font
 uis.SetTitleTextAttributes(new UITextAttributes() { TextColor = textDeselectedColor }, UIControlState.Normal); //Font = UIFont.SystemFontOfSize(13, UIFontWeight.Regular)
 uis.SetTitleTextAttributes(new UITextAttributes() { TextColor = textSelectedColor, }, UIControlState.Selected); //Font = UIFont.SystemFontOfSize(13, UIFontWeight.Regular)

 // setDividerImage(tintColorImage, forLeftSegmentState: .normal, rightSegmentState: .normal, barMetrics: .default)
 uis.SetDividerImage(imageDivider(tintColor), UIControlState.Normal, UIControlState.Normal, UIBarMetrics.Default);

 //layer.borderWidth = 1
 uis.Layer.BorderWidth = 1;

 //layer.borderColor = tintColor.cgColor
 uis.Layer.BorderColor = tintColor.CGColor;
}
</code></pre>

blocks|key|3939628|text|从iOS+13b3开始，UISegmentedControl上现在有一个selectedSegmentTintColor。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3939629|若要更改分段控件的整体颜色，请使用其backgroundColor。|3939630|要更改选定线段的颜色，请使用selectedSegmentTintColor。|3939631|要更改未选中段标题的颜色/字体，请使用状态为.normal/UIControlStateNormal的setTitleTextAttributes。|3939632|要更改所选段标题的颜色/字体，请在状态为.selected/UIControlStateSelected的情况下使用setTitleTextAttributes。|3939633|如果创建包含图像的分段控件，如果图像是作为模板图像创建的，则分段控件的tintColor将用于为图像着色。但这有一个问题。如果您将tintColor设置为与selectedSegmentTintColor相同的颜色，则图像在所选片段中将不可见。如果将tintColor设置为与backgroundColor相同的颜色，则未选定分段上的图像将不可见。这意味着图像的分段控件必须使用3种不同的颜色才能使所有内容可见。或者，您可以使用非模板图像，而不设置tintColor。|3939634|在iOS+12或更早版本下，只需设置分段控件的tintColor或依赖于应用程序的整体色调颜色。|3939635|entityMap^0|C|I|10|O|0|I|F|0|E|O|0|M|7|U|K|1F|M|0|K|9|U|M|1M|M|0|Z|9|1T|9|26|O|3H|9|3U|F|68|9|0|N|9|0^^$0|@$1|2|3|4|5|6|7|T|8|@$9|U|A|V|B|C]|$9|W|A|X|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|11|8|@$9|12|A|13|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|14|8|@$9|15|A|16|B|C]|$9|17|A|18|B|C]|$9|19|A|1A|B|C]]|D|@]|E|$]]|$1|L|3|M|5|6|7|1B|8|@$9|1C|A|1D|B|C]|$9|1E|A|1F|B|C]|$9|1G|A|1H|B|C]]|D|@]|E|$]]|$1|N|3|O|5|6|7|1I|8|@$9|1J|A|1K|B|C]|$9|1L|A|1M|B|C]|$9|1N|A|1O|B|C]|$9|1P|A|1Q|B|C]|$9|1R|A|1S|B|C]|$9|1T|A|1U|B|C]]|D|@]|E|$]]|$1|P|3|Q|5|6|7|1V|8|@$9|1W|A|1X|B|C]]|D|@]|E|$]]|$1|R|3|-4|5|6|7|1Y|8|@]|D|@]|E|$]]]|S|$]]

As of iOS 13b3, there is now a <code>selectedSegmentTintColor</code> on <code>UISegmentedControl</code>.

To change the overall color of the segmented control use its <code>backgroundColor</code>.

To change the color of the selected segment use <code>selectedSegmentTintColor</code>.

To change the color/font of the unselected segment titles, use <code>setTitleTextAttributes</code> with a state of <code>.normal</code>/<code>UIControlStateNormal</code>.

To change the color/font of the selected segment titles, use <code>setTitleTextAttributes</code> with a state of <code>.selected</code>/<code>UIControlStateSelected</code>.

If you create a segmented control with images, if the images are created as template images, then the segmented control's <code>tintColor</code> will be used to color the images. But this has a problem. If you set the <code>tintColor</code> to the same color as <code>selectedSegmentTintColor</code> then the image won't be visible in the selected segment. If you set the <code>tintColor</code> to the same color as <code>backgroundColor</code>, then the images on the unselected segments won't be visible. This means your segmented control with images must use 3 different colors for everything to be visible. Or you can use non-template images and not set the <code>tintColor</code>.

Under iOS 12 or earlier, simply set the segmented control's <code>tintColor</code> or rely on the app's overall tint color.

blocks|key|3939637|text|if+(@available(iOS+13.0,+*))+{

++++[self.segmentedControl+setTitleTextAttributes:@{NSForegroundColorAttributeName:+[UIColor+whiteColor],+NSFontAttributeName:+[UIFont+systemFontOfSize:13]}+forState:UIControlStateSelected];
++++[self.segmentedControl+setSelectedSegmentTintColor:[UIColor+blueColor]];

}+else+{

[self.segmentedControl+setTintColor:[UIColor+blueColor]];}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|3939638|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>if (@available(iOS 13.0, *)) {

 [self.segmentedControl setTitleTextAttributes:@{NSForegroundColorAttributeName: [UIColor whiteColor], NSFontAttributeName: [UIFont systemFontOfSize:13]} forState:UIControlStateSelected];
 [self.segmentedControl setSelectedSegmentTintColor:[UIColor blueColor]];

} else {

[self.segmentedControl setTintColor:[UIColor blueColor]];}
</code></pre>

blocks|key|3935851|text|您可以实现以下方法|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3935852|extension+UISegmentedControl{
++++func+selectedSegmentTintColor(_+color:+UIColor)+{
++++++++self.setTitleTextAttributes([.foregroundColor:+color],+for:+.selected)
++++}
++++func+unselectedSegmentTintColor(_+color:+UIColor)+{
++++++++self.setTitleTextAttributes([.foregroundColor:+color],+for:+.normal)
++++}
}|code-block|syntax|javascript|3935853|使用代码|3935854|segmentControl.unselectedSegmentTintColor(.white)
segmentControl.selectedSegmentTintColor(.black)|3935855|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

You can implement following method

<pre><code>extension UISegmentedControl{
 func selectedSegmentTintColor(_ color: UIColor) {
 self.setTitleTextAttributes([.foregroundColor: color], for: .selected)
 }
 func unselectedSegmentTintColor(_ color: UIColor) {
 self.setTitleTextAttributes([.foregroundColor: color], for: .normal)
 }
}
</code></pre>

Usage code

<pre><code>segmentControl.unselectedSegmentTintColor(.white)
segmentControl.selectedSegmentTintColor(.black)
</code></pre>

blocks|key|3935857|text|@Ilahi+Charfeddine的Swift版本回答：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3935858|if+#available(iOS+13.0,+*)+{
+++segmentedControl.setTitleTextAttributes([.foregroundColor:+UIColor.white],+for:+.selected)
+++segmentedControl.selectedSegmentTintColor+=+UIColor.blue
}+else+{
+++segmentedControl.tintColor+=+UIColor.blue
}|code-block|syntax|javascript|3935859|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Swift version of @Ilahi Charfeddine answer:

<pre><code>if #available(iOS 13.0, *) {
 segmentedControl.setTitleTextAttributes([.foregroundColor: UIColor.white], for: .selected)
 segmentedControl.selectedSegmentTintColor = UIColor.blue
} else {
 segmentedControl.tintColor = UIColor.blue
}
</code></pre>

blocks|key|3935861|text|iOS13+UISegmentController|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3935862|使用方法：|3935863|segment.setOldLayout(tintColor:+.green)

extension+UISegmentedControl
{
++++func+setOldLayout(tintColor:+UIColor)
++++{
++++++++if+#available(iOS+13,+*)
++++++++{
++++++++++++let+bg+=+UIImage(color:+.clear,+size:+CGSize(width:+1,+height:+32))
+++++++++++++let+devider+=+UIImage(color:+tintColor,+size:+CGSize(width:+1,+height:+32))

+++++++++++++//set+background+images
+++++++++++++self.setBackgroundImage(bg,+for:+.normal,+barMetrics:+.default)
+++++++++++++self.setBackgroundImage(devider,+for:+.selected,+barMetrics:+.default)

+++++++++++++//set+divider+color
+++++++++++++self.setDividerImage(devider,+forLeftSegmentState:+.normal,+rightSegmentState:+.normal,+barMetrics:+.default)

+++++++++++++//set+border
+++++++++++++self.layer.borderWidth+=+1
+++++++++++++self.layer.borderColor+=+tintColor.cgColor

+++++++++++++//set+label+color
+++++++++++++self.setTitleTextAttributes([.foregroundColor:+tintColor],+for:+.normal)
+++++++++++++self.setTitleTextAttributes([.foregroundColor:+UIColor.white],+for:+.selected)
++++++++}
++++++++else
++++++++{
++++++++++++self.tintColor+=+tintColor
++++++++}
++++}
}
extension+UIImage+{
++++convenience+init(color:+UIColor,+size:+CGSize)+{
++++++++UIGraphicsBeginImageContextWithOptions(size,+false,+1)
++++++++color.set()
++++++++let+ctx+=+UIGraphicsGetCurrentContext()!
++++++++ctx.fill(CGRect(origin:+.zero,+size:+size))
++++++++let+image+=+UIGraphicsGetImageFromCurrentImageContext()!
++++++++UIGraphicsEndImageContext()

++++++++self.init(data:+image.pngData()!)!
++++}
}|code-block|syntax|javascript|3935864|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

iOS13 UISegmentController 

how to use:

<pre><code>segment.setOldLayout(tintColor: .green)

extension UISegmentedControl
{
 func setOldLayout(tintColor: UIColor)
 {
 if #available(iOS 13, *)
 {
 let bg = UIImage(color: .clear, size: CGSize(width: 1, height: 32))
 let devider = UIImage(color: tintColor, size: CGSize(width: 1, height: 32))

 //set background images
 self.setBackgroundImage(bg, for: .normal, barMetrics: .default)
 self.setBackgroundImage(devider, for: .selected, barMetrics: .default)

 //set divider color
 self.setDividerImage(devider, forLeftSegmentState: .normal, rightSegmentState: .normal, barMetrics: .default)

 //set border
 self.layer.borderWidth = 1
 self.layer.borderColor = tintColor.cgColor

 //set label color
 self.setTitleTextAttributes([.foregroundColor: tintColor], for: .normal)
 self.setTitleTextAttributes([.foregroundColor: UIColor.white], for: .selected)
 }
 else
 {
 self.tintColor = tintColor
 }
 }
}
extension UIImage {
 convenience init(color: UIColor, size: CGSize) {
 UIGraphicsBeginImageContextWithOptions(size, false, 1)
 color.set()
 let ctx = UIGraphicsGetCurrentContext()!
 ctx.fill(CGRect(origin: .zero, size: size))
 let image = UIGraphicsGetImageFromCurrentImageContext()!
 UIGraphicsEndImageContext()

 self.init(data: image.pngData()!)!
 }
}
</code></pre>

blocks|key|3935875|text|IOS+13和Swift+5.0+(Xcode+11.0)段控制100%25工作|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3935876|​|3935877|📷|atomic|offset|length|3935878|3935879|3935880|3935881|3935882|+if+#available(iOS+13.0,+*)+{
++++++yoursegmentedControl.backgroundColor+=+UIColor.black
++++++yoursegmentedControl.layer.borderColor+=+UIColor.white.cgColor
++++++yoursegmentedControl.selectedSegmentTintColor+=+UIColor.white
++++++yoursegmentedControl.layer.borderWidth+=+1

++++++let+titleTextAttributes+=+[NSAttributedString.Key.foregroundColor:+UIColor.white]++++
++++++yoursegmentedControl.setTitleTextAttributes(titleTextAttributes,+for:.normal)

++++++let+titleTextAttributes1+=+[NSAttributedString.Key.foregroundColor:+UIColor.black]
++++++yoursegmentedControl.setTitleTextAttributes(titleTextAttributes1,+for:.selected)
++}+else+{
++++++++++++++//+Fallback+on+earlier+versions
}|code-block|syntax|javascript|3935883|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/ad58089e0a3f4fbc48e2ac77f55595ce.png|imageAlt|1|https://ask.qcloudimg.com/http-save/yehe-900000/9403afb11a2aaaf9c9ebfe8c59255a18.png^0|0|0|0|1|0|0|0|0|0|1|1|0|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|13|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|14|8|@]|9|@$G|15|H|16|1|17]]|A|$]]|$1|I|3|C|5|6|7|18|8|@]|9|@]|A|$]]|$1|J|3|C|5|6|7|19|8|@]|9|@]|A|$]]|$1|K|3|E|5|F|7|1A|8|@]|9|@$G|1B|H|1C|1|1D]]|A|$]]|$1|L|3|C|5|6|7|1E|8|@]|9|@]|A|$]]|$1|M|3|N|5|O|7|1F|8|@]|9|@]|A|$P|Q]]|$1|R|3|-4|5|6|7|1G|8|@]|9|@]|A|$]]]|S|$T|$5|U|V|W|A|$X|Y|Z|-4]]|10|$5|U|V|W|A|$X|11|Z|-4]]]]

IOS 13 and Swift 5.0 (Xcode 11.0)Segment Control 100% Working

<a href="https://i.stack.imgur.com/4VNuC.png" rel="noreferrer"><img src="https://i.stack.imgur.com/4VNuC.png" alt="enter image description here"></a>

<a href="https://i.stack.imgur.com/tmMer.png" rel="noreferrer"><img src="https://i.stack.imgur.com/tmMer.png" alt="enter image description here"></a>

<pre><code> if #available(iOS 13.0, *) {
 yoursegmentedControl.backgroundColor = UIColor.black
 yoursegmentedControl.layer.borderColor = UIColor.white.cgColor
 yoursegmentedControl.selectedSegmentTintColor = UIColor.white
 yoursegmentedControl.layer.borderWidth = 1

 let titleTextAttributes = [NSAttributedString.Key.foregroundColor: UIColor.white] 
 yoursegmentedControl.setTitleTextAttributes(titleTextAttributes, for:.normal)

 let titleTextAttributes1 = [NSAttributedString.Key.foregroundColor: UIColor.black]
 yoursegmentedControl.setTitleTextAttributes(titleTextAttributes1, for:.selected)
 } else {
 // Fallback on earlier versions
}
</code></pre>

blocks|key|3939778|text|虽然上面的答案很棒，但他们中的大多数都错误地将选定片段中的文本颜色弄错了。我已经创建了UISegmentedControl子类，您可以在iOS+13和iOS+13之前的设备上使用它，并像在iOS+13之前的设备上一样使用tintColor属性。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3939779|++++class+LegacySegmentedControl:+UISegmentedControl+{
++++++++private+func+stylize()+{
++++++++++++if+#available(iOS+13.0,+*)+{
++++++++++++++++selectedSegmentTintColor+=+tintColor
++++++++++++++++let+tintColorImage+=+UIImage(color:+tintColor)
++++++++++++++++setBackgroundImage(UIImage(color:+backgroundColor+??+.clear),+for:+.normal,+barMetrics:+.default)
++++++++++++++++setBackgroundImage(tintColorImage,+for:+.selected,+barMetrics:+.default)
++++++++++++++++setBackgroundImage(UIImage(color:+tintColor.withAlphaComponent(0.2)),+for:+.highlighted,+barMetrics:+.default)
++++++++++++++++setBackgroundImage(tintColorImage,+for:+[.highlighted,+.selected],+barMetrics:+.default)
++++++++++++++++setTitleTextAttributes([.foregroundColor:+tintColor!,+NSAttributedString.Key.font:+UIFont.systemFont(ofSize:+13,+weight:+.regular)],+for:+.normal)

++++++++++++++++setDividerImage(tintColorImage,+forLeftSegmentState:+.normal,+rightSegmentState:+.normal,+barMetrics:+.default)
++++++++++++++++layer.borderWidth+=+1
++++++++++++++++layer.borderColor+=+tintColor.cgColor

//+Detect+underlying+backgroundColor+so+the+text+color+will+be+properly+matched

++++++++++++++++if+let+background+=+backgroundColor+{
++++++++++++++++++++self.setTitleTextAttributes([.foregroundColor:+background,+NSAttributedString.Key.font:+UIFont.systemFont(ofSize:+13,+weight:+.regular)],+for:+.selected)
++++++++++++++++}+else+{
++++++++++++++++++++func+detectBackgroundColor(of+view:+UIView?)+->+UIColor?+{
++++++++++++++++++++++++guard+let+view+=+view+else+{
++++++++++++++++++++++++++++return+nil
++++++++++++++++++++++++}
++++++++++++++++++++++++if+let+color+=+view.backgroundColor,+color+!=+.clear+{
++++++++++++++++++++++++++++return+color
++++++++++++++++++++++++}
++++++++++++++++++++++++return+detectBackgroundColor(of:+view.superview)
++++++++++++++++++++}
++++++++++++++++++++let+textColor+=+detectBackgroundColor(of:+self)+??+.black

++++++++++++++++++++self.setTitleTextAttributes([.foregroundColor:+textColor,+NSAttributedString.Key.font:+UIFont.systemFont(ofSize:+13,+weight:+.regular)],+for:+.selected)
++++++++++++++++}
++++++++++++}
++++++++}

++++++++override+func+tintColorDidChange()+{
++++++++++++super.tintColorDidChange()
++++++++++++stylize()
++++++++}
++++}

++++fileprivate+extension+UIImage+{
++++++++public+convenience+init?(color:+UIColor,+size:+CGSize+=+CGSize(width:+1,+height:+1))+{
++++++++++let+rect+=+CGRect(origin:+.zero,+size:+size)
++++++++++UIGraphicsBeginImageContextWithOptions(rect.size,+false,+0.0)
++++++++++color.setFill()
++++++++++UIRectFill(rect)
++++++++++let+image+=+UIGraphicsGetImageFromCurrentImageContext()
++++++++++UIGraphicsEndImageContext()

++++++++++guard+let+cgImage+=+image?.cgImage+else+{+return+nil+}
++++++++++self.init(cgImage:+cgImage)
++++++++}
++++}|code-block|syntax|javascript|3939780|使用tintColorDidChange方法，我们可以确保每当片段视图或任何底层视图上的tintColor属性发生变化时都会调用stylize方法，这是iOS上的首选行为。|3939781|结果：|3939782|📷|atomic|3939783|​|3939784|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/02a82e4c60ca3ff2afef63e7b5deb61c.png|imageAlt^0|17|I|0|0|2|I|18|9|1S|7|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@$9|13|A|14|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|15|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|16|8|@$9|17|A|18|B|C]|$9|19|A|1A|B|C]|$9|1B|A|1C|B|C]]|D|@]|E|$]]|$1|M|3|N|5|6|7|1D|8|@]|D|@]|E|$]]|$1|O|3|P|5|Q|7|1E|8|@]|D|@$9|1F|A|1G|1|1H]]|E|$]]|$1|R|3|S|5|6|7|1I|8|@]|D|@]|E|$]]|$1|T|3|-4|5|6|7|1J|8|@]|D|@]|E|$]]]|U|$V|$5|W|X|Y|E|$Z|10|11|-4]]]]

While answers above are great, most of them get the color of text inside selected segment wrong. I've created <code>UISegmentedControl</code> subclass which you can use on iOS 13 and pre-iOS 13 devices and use the tintColor property as you would on pre iOS 13 devices.

<pre><code> class LegacySegmentedControl: UISegmentedControl {
 private func stylize() {
 if #available(iOS 13.0, *) {
 selectedSegmentTintColor = tintColor
 let tintColorImage = UIImage(color: tintColor)
 setBackgroundImage(UIImage(color: backgroundColor ?? .clear), for: .normal, barMetrics: .default)
 setBackgroundImage(tintColorImage, for: .selected, barMetrics: .default)
 setBackgroundImage(UIImage(color: tintColor.withAlphaComponent(0.2)), for: .highlighted, barMetrics: .default)
 setBackgroundImage(tintColorImage, for: [.highlighted, .selected], barMetrics: .default)
 setTitleTextAttributes([.foregroundColor: tintColor!, NSAttributedString.Key.font: UIFont.systemFont(ofSize: 13, weight: .regular)], for: .normal)

 setDividerImage(tintColorImage, forLeftSegmentState: .normal, rightSegmentState: .normal, barMetrics: .default)
 layer.borderWidth = 1
 layer.borderColor = tintColor.cgColor

// Detect underlying backgroundColor so the text color will be properly matched

 if let background = backgroundColor {
 self.setTitleTextAttributes([.foregroundColor: background, NSAttributedString.Key.font: UIFont.systemFont(ofSize: 13, weight: .regular)], for: .selected)
 } else {
 func detectBackgroundColor(of view: UIView?) -&gt; UIColor? {
 guard let view = view else {
 return nil
 }
 if let color = view.backgroundColor, color != .clear {
 return color
 }
 return detectBackgroundColor(of: view.superview)
 }
 let textColor = detectBackgroundColor(of: self) ?? .black

 self.setTitleTextAttributes([.foregroundColor: textColor, NSAttributedString.Key.font: UIFont.systemFont(ofSize: 13, weight: .regular)], for: .selected)
 }
 }
 }

 override func tintColorDidChange() {
 super.tintColorDidChange()
 stylize()
 }
 }

 fileprivate extension UIImage {
 public convenience init?(color: UIColor, size: CGSize = CGSize(width: 1, height: 1)) {
 let rect = CGRect(origin: .zero, size: size)
 UIGraphicsBeginImageContextWithOptions(rect.size, false, 0.0)
 color.setFill()
 UIRectFill(rect)
 let image = UIGraphicsGetImageFromCurrentImageContext()
 UIGraphicsEndImageContext()

 guard let cgImage = image?.cgImage else { return nil }
 self.init(cgImage: cgImage)
 }
 }
</code></pre>

Using <code>tintColorDidChange</code> method we ensure that the <code>stylize</code> method will be called every time the <code>tintColor</code> property changes on the segment view, or any of the underlying views, which is preferred behaviour on iOS.

Result:
<a href="https://i.stack.imgur.com/lZOiH.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/lZOiH.png" alt="enter image description here"></a>

blocks|key|3936199|text|如果要将背景设置为清除，则必须执行以下操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3936200|if+#available(iOS+13.0,+*)+{
++let+image+=+UIImage()
++let+size+=+CGSize(width:+1,+height:+segmentedControl.intrinsicContentSize.height)
++UIGraphicsBeginImageContextWithOptions(size,+false,+0.0)
++image.draw(in:+CGRect(origin:+.zero,+size:+size))
++let+scaledImage+=+UIGraphicsGetImageFromCurrentImageContext()
++UIGraphicsEndImageContext()
++segmentedControl.setBackgroundImage(scaledImage,+for:+.normal,+barMetrics:+.default)
++segmentedControl.setDividerImage(scaledImage,+forLeftSegmentState:+.normal,+rightSegmentState:+.normal,+barMetrics:+.default)
}|code-block|syntax|javascript|3936201|结果看起来像这样：|3936202|📷|atomic|offset|length|3936203|​|3936204|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/7067e8b0318dcb73a9b68685ce005285.jpeg|imageAlt^0|0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|10|8|@]|9|@]|A|$]]|$1|I|3|J|5|K|7|11|8|@]|9|@$L|12|M|13|1|14]]|A|$]]|$1|N|3|O|5|6|7|15|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|16|8|@]|9|@]|A|$]]]|Q|$R|$5|S|T|U|A|$V|W|X|-4]]]]

If you want to set the background to clear you have to do this:
<pre><code>if #available(iOS 13.0, *) {
 let image = UIImage()
 let size = CGSize(width: 1, height: segmentedControl.intrinsicContentSize.height)
 UIGraphicsBeginImageContextWithOptions(size, false, 0.0)
 image.draw(in: CGRect(origin: .zero, size: size))
 let scaledImage = UIGraphicsGetImageFromCurrentImageContext()
 UIGraphicsEndImageContext()
 segmentedControl.setBackgroundImage(scaledImage, for: .normal, barMetrics: .default)
 segmentedControl.setDividerImage(scaledImage, forLeftSegmentState: .normal, rightSegmentState: .normal, barMetrics: .default)
}
</code></pre>
Result looks like:
<a href="https://i.stack.imgur.com/LKDPJ.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/LKDPJ.jpg" alt="enter image description here" /></a>

blocks|key|3936269|text|SwiftUI+Picker缺少一些基本选项。对于试图在iOS+13或14的SwiftUI中使用SegmentedPickerStyle()自定义选取器的人来说，最简单的选择是使用UISegmentedControl.appearance()来全局设置外观。下面是一个示例函数，可以调用该函数来设置外观。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3936270|func+setUISegmentControlAppearance()+{
++++UISegmentedControl.appearance().selectedSegmentTintColor+=+.white
++++UISegmentedControl.appearance().backgroundColor+=+UIColor(red:+1.0,+green:+1.0,+blue:+1.0,+alpha:+0.1)
++++UISegmentedControl.appearance().setTitleTextAttributes([.foregroundColor:+UIColor.black],+for:+.normal)
++++UISegmentedControl.appearance().setTitleTextAttributes([.foregroundColor:+UIColor.white],+for:+.selected)
}|code-block|syntax|javascript|3936271|但是，如果您想要多个具有不同设置的控件，则使用UISegmentedControl.appearance()全局设置外观选项并不是很好。另一种选择是为UISegmentedControl实现UIViewRepresentable。下面的示例设置了原始问题中询问的属性，并将.apportionsSegmentWidthsByContent+=+true设置为奖励。希望这能帮你节省一些时间。|3936272|struct+MyPicker:+UIViewRepresentable+{

++++@Binding+var+selection:+Int+//+The+type+of+selection+may+vary+depending+on+your+use+case
++++var+items:+[Any]?

++++class+Coordinator:+NSObject+{
++++++++let+parent:+MyPicker
++++++++init(parent:+MyPicker)+{
++++++++++++self.parent+=+parent
++++++++}

++++++++@objc+func+valueChanged(_+sender:+UISegmentedControl)+{
++++++++++++self.parent.selection+=+Int(sender.selectedSegmentIndex)
++++++++}
++++}

++++func+makeCoordinator()+->+MyPicker.Coordinator+{
++++++++Coordinator(parent:+self)
++++}

++++func+makeUIView(context:+Context)+->+UISegmentedControl+{
++++++++let+picker+=+UISegmentedControl(items:+self.items)

++++++++//+Any+number+of+other+UISegmentedControl+settings+can+go+here
++++++++picker.selectedSegmentTintColor+=+.white
++++++++picker.backgroundColor+=+UIColor(red:+1.0,+green:+1.0,+blue:+1.0,+alpha:+0.1)
++++++++picker.setTitleTextAttributes([.foregroundColor:+UIColor.black],+for:+.normal)
++++++++picker.setTitleTextAttributes([.foregroundColor:+UIColor.white],+for:+.selected)
++++++++picker.apportionsSegmentWidthsByContent+=+true

++++++++//+Make+sure+the+coordinator+updates+the+picker+when+the+value+changes
++++++++picker.addTarget(context.coordinator,+action:+#selector(Coordinator.valueChanged(_:)),+for:+.valueChanged)

++++++++return+picker
++++}

++++func+updateUIView(_+uiView:+UISegmentedControl,+context:+Context)+{
++++++++uiView.selectedSegmentIndex+=+self.selection
++++}
+}|3936273|entityMap^0|8|6|2I|V|0|0|N|V|23|I|2N|J|3S|14|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]|$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|W|8|@$9|X|A|Y|B|C]|$9|Z|A|10|B|C]|$9|11|A|12|B|C]|$9|13|A|14|B|C]]|D|@]|E|$]]|$1|M|3|N|5|H|7|15|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|16|8|@]|D|@]|E|$]]]|P|$]]

The SwiftUI <code>Picker</code> lacks some basic options. For people trying to customize a Picker with SegmentedPickerStyle() in SwiftUI in iOS 13 or 14, the simplest option is to use <code>UISegmentedControl.appearance()</code> to set the appearance globally. Here is an example function that could be called to set the appearance.
<pre class="lang-swift prettyprint-override"><code>func setUISegmentControlAppearance() {
 UISegmentedControl.appearance().selectedSegmentTintColor = .white
 UISegmentedControl.appearance().backgroundColor = UIColor(red: 1.0, green: 1.0, blue: 1.0, alpha: 0.1)
 UISegmentedControl.appearance().setTitleTextAttributes([.foregroundColor: UIColor.black], for: .normal)
 UISegmentedControl.appearance().setTitleTextAttributes([.foregroundColor: UIColor.white], for: .selected)
}
</code></pre>
However, globally setting appearance options with <code>UISegmentedControl.appearance()</code> is not great if you want multiple controls with different settings. Another option is to implement <code>UIViewRepresentable</code> for <code>UISegmentedControl</code>. Here is an example that sets the properties asked about in the the original question and sets <code>.apportionsSegmentWidthsByContent = true</code> as a bonus. Hopefully this will save you some time...
<pre class="lang-swift prettyprint-override"><code>struct MyPicker: UIViewRepresentable {

 @Binding var selection: Int // The type of selection may vary depending on your use case
 var items: [Any]?

 class Coordinator: NSObject {
 let parent: MyPicker
 init(parent: MyPicker) {
 self.parent = parent
 }

 @objc func valueChanged(_ sender: UISegmentedControl) {
 self.parent.selection = Int(sender.selectedSegmentIndex)
 }
 }

 func makeCoordinator() -&gt; MyPicker.Coordinator {
 Coordinator(parent: self)
 }

 func makeUIView(context: Context) -&gt; UISegmentedControl {
 let picker = UISegmentedControl(items: self.items)

 // Any number of other UISegmentedControl settings can go here
 picker.selectedSegmentTintColor = .white
 picker.backgroundColor = UIColor(red: 1.0, green: 1.0, blue: 1.0, alpha: 0.1)
 picker.setTitleTextAttributes([.foregroundColor: UIColor.black], for: .normal)
 picker.setTitleTextAttributes([.foregroundColor: UIColor.white], for: .selected)
 picker.apportionsSegmentWidthsByContent = true

 // Make sure the coordinator updates the picker when the value changes
 picker.addTarget(context.coordinator, action: #selector(Coordinator.valueChanged(_:)), for: .valueChanged)

 return picker
 }

 func updateUIView(_ uiView: UISegmentedControl, context: Context) {
 uiView.selectedSegmentIndex = self.selection
 }
 }
</code></pre>

blocks|key|3936378|text|在iOS+13和更高版本中，当我在viewDidLoad中访问分段控件的subviews时，它有1个UIImageView。一旦我插入了更多的片段，它就会分别增加，所以3个片段就意味着3个UIImageView作为分段控件的subviews。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3936379|有趣的是，当它到达viewDidAppear时，分段控件的subviews变成了3个UISegment+(每个都包含一个UISegmentLabel作为它的子视图；这是您的文本)和4个UIImageView，如下所示：|3936380|​|3936381|📷|atomic|3936382|3936383|viewDidLoad中的这3个UIImageView不知何故变成了UISegment，我们不想碰它们(但你可以试着设置它们的图像或isHidden，看看它对UI有什么影响)。让我们忽略这些私有类。|3936384|这4个UIImageView实际上是3个"normal“UIImageView+(连同作为垂直分隔符的1个UIImageView子视图)和1个"selected”UIImageView+(即，这实际上是您的selectedSegmentTintColor图像，请注意，在上面的屏幕截图中，它下面没有子视图)。|3936385|在我的例子中，我需要一个白色的背景，所以我必须隐藏灰色的背景图像(参见：https://medium.com/flawless-app-stories/ios-13-uisegmentedcontrol-3-important-changes-d3a94fdd6763)。我还想删除/隐藏分段之间的垂直分隔符。|3936386|因此，在viewDidAppear中，不需要设置分隔符图像或背景图像(在我的例子中)的简单解决方案是简单地隐藏前3个UIImageView|3936387|//+This+method+might+be+a+bit+'risky'+since+we+are+not+guaranteed+of+the+internal+sequence+ordering,+but+so+far+it+seems+ok.
if+#available(iOS+13.0,+*)+{
++++for+i+in+0...(segmentedControl.numberOfSegments+-+1)+{
++++++++segmentedControl.subviews[i].isHidden+=+true
++++}
}|code-block|syntax|javascript|3936388|或|3936389|//+This+does+not+depend+on+the+ordering+sequence+like+the+above,+but+this+is+also+risky+in+the+sense+that+if+the+UISegment+becomes+UIImageView+one+day,+this+will+break.
if+#available(iOS+13.0,+*)+{
++++for+subview+in+segmentedControl.subviews+{
++++++++if+String(describing:+subview).contains("UIImageView"),
+++++++++++subview.subviews.count+>+0+{
+++++++++++++++subview.isHidden+=+true
++++++++}
++++}
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In iOS 13 and above, when I accessed the segmented control's <code>subviews</code> in <code>viewDidLoad</code>, it has 1 <code>UIImageView</code>. Once I inserted more segments, it increases respectively, so 3 segments means 3 <code>UIImageView</code> as the segmented control's <code>subviews</code>.
Interestingly, by the time it reaches <code>viewDidAppear</code>, the segmented control's <code>subviews</code> became 3 <code>UISegment</code> (each contained a <code>UISegmentLabel</code> as its subview; this is your text) and 4 <code>UIImageView</code> as shown below:
<a href="https://i.stack.imgur.com/j674O.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/j674O.png" alt="viewDidAppear" /></a>
Those 3 <code>UIImageView</code> in <code>viewDidLoad</code> somehow become <code>UISegment</code>, and we don't want to touch them (but you can try to set their image or <code>isHidden</code> just to see how it affects the UI). Let's ignore these private classes.
Those 4 <code>UIImageView</code> are actually 3 &quot;normal&quot; <code>UIImageView</code> (together with 1 <code>UIImageView</code> subview as the vertical separator) and 1 &quot;selected&quot; <code>UIImageView</code> (i.e. this is actually your <code>selectedSegmentTintColor</code> image, notice in the screenshot above there are no subviews under it).
In my case, I needed a white background, so I had to hide the greyish background images (see: <a href="https://medium.com/flawless-app-stories/ios-13-uisegmentedcontrol-3-important-changes-d3a94fdd6763" rel="nofollow noreferrer">https://medium.com/flawless-app-stories/ios-13-uisegmentedcontrol-3-important-changes-d3a94fdd6763</a>). I also wanted to remove/hide the vertical separators between the segments.
Hence the simple solution in <code>viewDidAppear</code>, without needed to set divider image or background image (in my case), is to simply hide those first 3 <code>UIImageView</code>:
<pre><code>// This method might be a bit 'risky' since we are not guaranteed of the internal sequence ordering, but so far it seems ok.
if #available(iOS 13.0, *) {
 for i in 0...(segmentedControl.numberOfSegments - 1) {
 segmentedControl.subviews[i].isHidden = true
 }
}
</code></pre>
or
<pre><code>// This does not depend on the ordering sequence like the above, but this is also risky in the sense that if the UISegment becomes UIImageView one day, this will break.
if #available(iOS 13.0, *) {
 for subview in segmentedControl.subviews {
 if String(describing: subview).contains(&quot;UIImageView&quot;),
 subview.subviews.count &gt; 0 {
 subview.isHidden = true
 }
 }
}
</code></pre>
Pick your poison...

A <code>UISegmentedControl</code> has a new appearance in iOS 13 and existing code to alter the colors of the segmented control no longer work as they did.

Prior to iOS 13 you could set the <code>tintColor</code> and that would be used for the border around the segmented control, the lines between the segments, and the background color of the selected segment. Then you could change the color of the titles of each segment using the foreground color attribute with <code>titleTextAttributes</code>.

Under iOS 13, the <code>tintColor</code> does nothing. You can set the segmented control's <code>backgroundColor</code> to change the overall color of the segmented control. But I can't find any way to alter the color used as the background of the selected segment. Setting the text attributes still works. I even tried setting the background color of the title but that only affects the background of the title, not the rest of the selected segment's background color.

In short, how do you modify the background color of the currently selected segment of a <code>UISegmentedControl</code> in iOS 13? Is there a proper solution, using public APIs, that doesn't require digging into the private subview structure?

There are no new properties in iOS 13 for <code>UISegmentedControl</code> or <code>UIControl</code> and none of the changes in <code>UIView</code> are relevant.

How to change the colors of a segment in a UISegmentedControl in iOS 13?

Objective-C

Xamarin

Swift

Xcode

UISegmentedControl在iOS 13中有了新的外观，用于更改分段控件的颜色的现有代码不再像以前那样工作。在iOS 13之前，您可以设置tintColor和，它将用于分段控件周围的边框、线段之间的线条以及所选线段的背景色。然后，您可以使用titleTextAttributes的前景颜色属性来更改每个片段标题...

问如何在iOS 13中更改UISegmentedControl中数据段的颜色？
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问如何在iOS 13中更改UISegmentedControl中数据段的颜色？
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