如何从分段控件中删除边框

如何删除分段控件的外边框？ 我已经将分频器图像设置为我想要的但现在要按照我的应用程序的模拟我需要一个没有外边框的分段控件。

Answer 1

您可以使用以下function删除边框和分隔线。 创建UISegmentedControl扩展：

对于Swift 2.2：

extension UISegmentedControl { func removeBorders() { setBackgroundImage(imageWithColor(backgroundColor!), forState: .Normal, barMetrics: .Default) setBackgroundImage(imageWithColor(tintColor!), forState: .Selected, barMetrics: .Default) setDividerImage(imageWithColor(UIColor.clearColor()), forLeftSegmentState: .Normal, rightSegmentState: .Normal, barMetrics: .Default) } // create a 1x1 image with this color private func imageWithColor(color: UIColor) -> UIImage { let rect = CGRectMake(0.0, 0.0, 1.0, 1.0) UIGraphicsBeginImageContext(rect.size) let context = UIGraphicsGetCurrentContext() CGContextSetFillColorWithColor(context, color.CGColor); CGContextFillRect(context, rect); let image = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); return image } } 

对于Swift 3：

 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! } } 

调用上面的函数。

 segmentedControl.removeBorders() 

参考： 完全删除UISegmentedControl分隔符。 （苹果手机）

感谢https://stackoverflow.com/users/3921490/amagain为Swift 3版本。

Answer 2

这是Sohil的答案的快速3版本，可能会帮助其他人。 它确实帮助了我。 🙂

 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! } } 

Answer 3

希望它会帮助某人

斯威夫特 – 4

使Segment控件的背景颜色和色调颜色为相同颜色。 然后“设置Segment控件的titleTextAttributes”

  segmentedControl.tintColor = UIColor.red segmentedControl.backgroundColor = UIColor.red let attributes = [NSAttributedStringKey.foregroundColor: UIColor.white] segmentedControl.setTitleTextAttributes(attributes, for: .normal) segmentedControl.setTitleTextAttributes(attributes, for: .selected) 

Answer 4

如果要在单元格之间保存边框

 extension UISegmentedControl { func removeBorders() { if let backgroundColor = backgroundColor, let backgroundImage = UIImage.imageWithSize(size: CGSize.one_one, color: backgroundColor){ setBackgroundImage(backgroundImage, for: .normal, barMetrics: .default) } if let tintColor = tintColor, let tintImage = UIImage.imageWithSize(size: CGSize.one_one, color: tintColor){ setBackgroundImage(tintImage, for: .selected, barMetrics: .default) setDividerImage(tintImage, forLeftSegmentState: .normal, rightSegmentState: .normal, barMetrics: .default) } } } extension CGSize{ static var one_one: CGSize{ return CGSize(width: 1.0, height: 1.0) } } extension UIImage{ static func imageWithSize(size : CGSize, color : UIColor = UIColor.white) -> UIImage? { var image:UIImage? = nil UIGraphicsBeginImageContext(size) if let context = UIGraphicsGetCurrentContext() { context.setFillColor(color.cgColor) context.addRect(CGRect(origin: CGPoint.zero, size: size)); context.drawPath(using: .fill) image = UIGraphicsGetImageFromCurrentImageContext(); } UIGraphicsEndImageContext() return image } }