swift rounded tab bar
@IBDesignable class TabBarWithCorners: UITabBar {
@IBInspectable var color: UIColor?
@IBInspectable var radii: CGFloat = 15.0
private var shapeLayer: CALayer?
override func draw(_ rect: CGRect) {
addShape()
}
private func addShape() {
let shapeLayer = CAShapeLayer()
shapeLayer.path = createPath()
shapeLayer.strokeColor = UIColor.gray.withAlphaComponent(0.1).cgColor
shapeLayer.fillColor = color?.cgColor ?? UIColor.white.cgColor
shapeLayer.lineWidth = 2
shapeLayer.shadowColor = UIColor.black.cgColor
shapeLayer.shadowOffset = CGSize(width: 0 , height: -3);
shapeLayer.shadowOpacity = 0.2
shapeLayer.shadowPath = UIBezierPath(roundedRect: bounds, cornerRadius: radii).cgPath
if let oldShapeLayer = self.shapeLayer {
layer.replaceSublayer(oldShapeLayer, with: shapeLayer)
} else {
layer.insertSublayer(shapeLayer, at: 0)
}
self.shapeLayer = shapeLayer
}
private func createPath() -> CGPath {
let path = UIBezierPath(
roundedRect: bounds,
byRoundingCorners: [.topLeft, .topRight],
cornerRadii: CGSize(width: radii, height: 0.0))
return path.cgPath
}
override func layoutSubviews() {
super.layoutSubviews()
self.isTranslucent = true
var tabFrame = self.frame
tabFrame.size.height = 65 + (UIApplication.shared.keyWindow?.safeAreaInsets.bottom ?? CGFloat.zero)
tabFrame.origin.y = self.frame.origin.y + ( self.frame.height - 65 - (UIApplication.shared.keyWindow?.safeAreaInsets.bottom ?? CGFloat.zero))
self.layer.cornerRadius = 20
self.frame = tabFrame
self.items?.forEach({ $0.titlePositionAdjustment = UIOffset(horizontal: 0.0, vertical: -5.0) })
}
}