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Apply border around tableView Sections
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| /** | |
| Extension for UITableViewController or UIViewController as you prefer | |
| */ | |
| extension UITableViewController { | |
| func colorSection(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath) { | |
| let cornerRadius: CGFloat = 0.0 | |
| cell.backgroundColor = UIColor.clear | |
| let layer: CAShapeLayer = CAShapeLayer() | |
| let pathRef: CGMutablePath = CGMutablePath() | |
| //dx leading an trailing margins | |
| let bounds: CGRect = cell.bounds.insetBy(dx: 0, dy: 0) | |
| var addLine: Bool = false | |
| if indexPath.row == 0 && indexPath.row == tableView.numberOfRows(inSection: indexPath.section) - 1 { | |
| pathRef.__addRoundedRect(transform: nil, rect: bounds, cornerWidth: cornerRadius, cornerHeight: cornerRadius) | |
| } else if indexPath.row == 0 { | |
| pathRef.move(to: CGPoint(x: bounds.minX, y: bounds.maxY)) | |
| pathRef.addArc(tangent1End: CGPoint(x: bounds.minX, y: bounds.minY), | |
| tangent2End: CGPoint(x: bounds.midX, y: bounds.minY), | |
| radius: cornerRadius) | |
| pathRef.addArc(tangent1End: CGPoint(x: bounds.maxX, y: bounds.minY), | |
| tangent2End: CGPoint(x: bounds.maxX, y: bounds.midY), | |
| radius: cornerRadius) | |
| pathRef.addLine(to: CGPoint(x: bounds.maxX, y: bounds.maxY)) | |
| addLine = true | |
| } else if indexPath.row == tableView.numberOfRows(inSection: indexPath.section) - 1 { | |
| pathRef.move(to: CGPoint(x: bounds.minX, y: bounds.minY)) | |
| pathRef.addArc(tangent1End: CGPoint(x: bounds.minX, y: bounds.maxY), | |
| tangent2End: CGPoint(x: bounds.midX, y: bounds.maxY), | |
| radius: cornerRadius) | |
| pathRef.addArc(tangent1End: CGPoint(x: bounds.maxX, y: bounds.maxY), | |
| tangent2End: CGPoint(x: bounds.maxX, y: bounds.midY), | |
| radius: cornerRadius) | |
| pathRef.addLine(to: CGPoint(x: bounds.maxX, y: bounds.minY)) | |
| } else { | |
| pathRef.addRect(bounds) | |
| addLine = true | |
| } | |
| layer.path = pathRef | |
| layer.strokeColor = UIColor.lightGray.cgColor | |
| layer.lineWidth = 0.5 | |
| layer.fillColor = UIColor.white.cgColor | |
| if addLine == true { | |
| let lineLayer: CALayer = CALayer() | |
| let lineHeight: CGFloat = (1 / UIScreen.main.scale) | |
| lineLayer.frame = CGRect(x: bounds.minX, y: bounds.size.height - lineHeight, width: bounds.size.width, height: lineHeight) | |
| lineLayer.backgroundColor = UIColor.clear.cgColor | |
| layer.addSublayer(lineLayer) | |
| } | |
| let backgroundView: UIView = UIView(frame: bounds) | |
| backgroundView.layer.insertSublayer(layer, at: 0) | |
| backgroundView.backgroundColor = .white | |
| cell.backgroundView = backgroundView | |
| } | |
| } |
This worked wonders. I do want to thank you for the time you spent on this.
Excellent !!! that works like charm...
How can I use this code?
this is what I was looking for but instead of using in tableview cell I ended up creating a custom UIView.
public class UIBorderedView: UIView {
var color = UIColor.white
var lineWidth: CGFloat = 1
var edges = UIRectEdge() {
didSet {
roundInternal()
setNeedsDisplay()
}
}
private var _cornerRadiusValue: CGFloat = 20
var cornerRadiusValue: CGFloat {
get {
return _cornerRadiusValue
}
set {
if newValue != cornerRadiusValue {
_cornerRadiusValue = newValue
roundInternal()
setNeedsDisplay()
}
}
}
private func roundInternal() {
var corners: CACornerMask = []
if edges.contains(.top) {
corners.insert([.layerMinXMinYCorner, .layerMaxXMinYCorner])
}
if edges.contains(.bottom) {
corners.insert([.layerMinXMaxYCorner, .layerMaxXMaxYCorner])
}
var radius = cornerRadiusValue
if edges.contains(.all) {
radius = radius / 2
}
round(with: radius, corners: corners)
}
public override func draw(_ rect: CGRect) {
if edges.contains(.all) {
let radius = cornerRadiusValue / 2
let path = UIBezierPath(roundedRect: bounds, byRoundingCorners: .allCorners, cornerRadii: CGSize(width: radius, height: radius))
path.lineWidth = lineWidth
color.setStroke()
path.stroke()
return
}
if edges.contains(.top) {
let path = CGMutablePath()
path.move(to: CGPoint(x: bounds.minX, y: bounds.maxY))
path.addArc(
tangent1End: CGPoint(x: bounds.minX, y: bounds.minY),
tangent2End: CGPoint(x: bounds.midX, y: bounds.minY),
radius: cornerRadiusValue
)
path.addArc(
tangent1End: CGPoint(x: bounds.maxX, y: bounds.minY),
tangent2End: CGPoint(x: bounds.maxX, y: bounds.midY),
radius: cornerRadiusValue
)
path.addLine(to: CGPoint(x: bounds.maxX, y: bounds.maxY))
let bezier = UIBezierPath(cgPath: path)
bezier.lineWidth = lineWidth
color.setStroke()
bezier.stroke()
return
}
if edges.contains(.bottom) {
let path = CGMutablePath()
path.move(to: CGPoint(x: bounds.minX, y: bounds.minY))
path.addArc(
tangent1End: CGPoint(x: bounds.minX, y: bounds.maxY),
tangent2End: CGPoint(x: bounds.midX, y: bounds.maxY),
radius: cornerRadius
)
path.addArc(
tangent1End: CGPoint(x: bounds.maxX, y: bounds.maxY),
tangent2End: CGPoint(x: bounds.maxX, y: bounds.midY),
radius: cornerRadius
)
path.addLine(to: CGPoint(x: bounds.maxX, y: bounds.minY))
let bezier = UIBezierPath(cgPath: path)
bezier.lineWidth = lineWidth
color.setStroke()
bezier.stroke()
return
}
let left = UIBezierPath()
left.move(to: bounds.origin)
left.addLine(to: CGPoint(x: bounds.minX, y: bounds.maxY))
left.lineWidth = lineWidth
color.setStroke()
left.stroke()
let right = UIBezierPath()
right.move(to: CGPoint(x: bounds.maxX, y: bounds.minY))
right.addLine(to: CGPoint(x: bounds.maxX, y: bounds.maxY))
right.lineWidth = lineWidth
color.setStroke()
right.stroke()
}
}
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func tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath) {
let cornerRadius: CGFloat = 0.0
cell.backgroundColor = UIColor.clear
let layer: CAShapeLayer = CAShapeLayer()
let pathRef: CGMutablePath = CGMutablePath()
//dx leading an trailing margins
let bounds: CGRect = cell.bounds.insetBy(dx: 8, dy: 0)
var addLine: Bool = false