I'm trying to draw a dashed bottom border to UITableViewCells with the following code:
func addDashedBottomBorder(to cell: UITableViewCell) {
let width = CGFloat(2.0)
let dashedBorderLayer: CAShapeLayer = CAShapeLayer()
let frameSize = cell.frame.size
let shapeRect = CGRect(x: 0, y: frameSize.height, width: frameSize.width*2, height: 1)
dashedBorderLayer.bounds = shapeRect
dashedBorderLayer.position = CGPoint(x: 0, y: frameSize.height)
dashedBorderLayer.strokeColor = UIColor.lightGray.cgColor
dashedBorderLayer.lineWidth = width
dashedBorderLayer.lineDashPattern = [9, 6]
dashedBorderLayer.path = UIBezierPath(roundedRect: shapeRect, cornerRadius: 5).cgPath
cell.layer.addSublayer(dashedBorderLayer)
}
However, I'm getting a strange solid line behind my dashed line as can be seen here: http://imgur.com/6kR9PgZ
I've already set tableView.separatorColor = UIColor.clear in viewDidLoad
Any ideas why I'm getting that solid line behind the dashed one?
Try this
func addDashedBottomBorder(to cell: UITableViewCell) {
let color = UIColor.lightGray.cgColor
let shapeLayer:CAShapeLayer = CAShapeLayer()
let frameSize = cell.frame.size
let shapeRect = CGRect(x: 0, y: 0, width: frameSize.width, height: 0)
shapeLayer.bounds = shapeRect
shapeLayer.position = CGPoint(x: frameSize.width/2, y: frameSize.height)
shapeLayer.fillColor = UIColor.clear.cgColor
shapeLayer.strokeColor = color
shapeLayer.lineWidth = 2.0
shapeLayer.lineJoin = kCALineJoinRound
shapeLayer.lineDashPattern = [9,6]
shapeLayer.path = UIBezierPath(roundedRect: CGRect(x: 0, y: shapeRect.height, width: shapeRect.width, height: 0), cornerRadius: 0).cgPath
cell.layer.addSublayer(shapeLayer)
}
Output
if you have write
tableView.separatorStyle = .None
Still, yo are getting a solid line below dassed pattern then 100% it is not tableview separator. It is something else
check your Table background colour, When you clear separator color, a
small space remains between cell. If you cell background color
different color from table background color, it visible like a
separator.
Objective-C
self.tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
In Swift
tableView.separatorStyle = .None
The line you are showing with your donted line is default TableViewCell seperator, you can remove it directly from the interface builder instead of writing any code.
In interface builder select your TableView and in the Attributes Insepector Set Separator property to None.
Related
I created a standard border around my UIView like so:
vwGroup.layer.borderColor = UIColor.yellow.cgColor
vwGroup.layer.borderWidth = 2.0;
but I would like to have 5px of padding/margin/spacing between the UIView, and the border that surrounds it.
Right now it just draws the border immediately around it. I'd like to push it out so there is clear space between.
Any suggestions? I suspect insets are the way to go but can't figure it out.
Thank you!
Insets isn't the way to go. You use inset for padding a view's internal content from its margins. For what you need your best option is to wrap your vwGroup inside another UIView and set the border in the wrapping view. Something like:
let wrappingView = UIView(frame: someFrame)
wrappingView.backgroundColor = .clear
wrappingView.layer.borderColor = UIColor.yellow.cgColor
wrappingView.layer.borderWidth = 2.0;
wrappingView.addSubview(vwGroup)
Of course this is just for you to get the big picture. You might want to set proper frames/constraints.
Try this, it is helpful for you.
First, Add this extension
extension CALayer {
func addGradientBorder(colors:[UIColor],width:CGFloat = 1) {
let gradientLayer = CAGradientLayer()
gradientLayer.frame = CGRect(origin: CGPoint.zero, size: self.bounds.size)
gradientLayer.startPoint = CGPoint(x:0.0, y:0.0)
gradientLayer.endPoint = CGPoint(x:1.0,y:1.0)
gradientLayer.colors = colors.map({$0.cgColor})
let shapeLayer = CAShapeLayer()
shapeLayer.lineWidth = width
shapeLayer.path = UIBezierPath(rect: self.bounds).cgPath
shapeLayer.fillColor = nil
shapeLayer.strokeColor = UIColor.red.cgColor
gradientLayer.mask = shapeLayer
self.addSublayer(gradientLayer)
}
}
Then add the UIView with border
let vwGroup = UIView(frame: CGRect(x: 50, y: 150, width: 200, height: 200))
vwGroup.backgroundColor = .red
//-- This is for padding between boarder and view -- you can set padding color ---
vwGroup.layer.addGradientBorder(colors:[UIColor.black,UIColor.black] , width: 40)
//-- This is for outer boarder -- you can also change the color of outer boarder --
vwGroup.layer.addGradientBorder(colors:[UIColor.white,UIColor.white] , width: 10)
self.view.addSubview(vwGroup)
Output is:
swift 5.4
call like this:
customView.layer.innerBorder()
did it, by add a sublayer
extension CALayer {
func innerBorder(borderOffset: CGFloat = 24.0, borderColor: UIColor = UIColor.blue, borderWidth: CGFloat = 2) {
let innerBorder = CALayer()
innerBorder.frame = CGRect(x: borderOffset, y: borderOffset, width: frame.size.width - 2 * borderOffset, height: frame.size.height - 2 * borderOffset)
innerBorder.borderColor = borderColor.cgColor
innerBorder.borderWidth = borderWidth
innerBorder.name = "innerBorder"
insertSublayer(innerBorder, at: 0)
}
}
I am using the below code to add a dashed custom bottom border to tableview cells. It is now overlapping with content randomly. Sometimes, the border is not getting displayed.
class AppTableCell: UITableViewCell {
var shapeLayer: CAShapeLayer?
var isBorderAdded = false
func isBottomBorderAdded() -> Bool {
return isBorderAdded
}
func getBottomBorderShapeLayer() -> CAShapeLayer {
return self.shapeLayer!
}
func setBottomBorderShapedLayer(_ layer: CAShapeLayer) {
self.shapeLayer = layer
}
}
The extend tableview cell from the above class and calls the below function in func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell method.
func addDashedBottomBorder(to cell: AppTableCell) {
let color = UIColor.init(red: 191/255, green: 191/255, blue: 191/255, alpha: 1.0).cgColor
let shapeLayer:CAShapeLayer = CAShapeLayer()
let frameSize = cell.frame.size
let shapeRect = CGRect(x: 0, y: 0, width: frameSize.width, height: 0)
shapeLayer.bounds = shapeRect
shapeLayer.position = CGPoint(x: frameSize.width/2, y: frameSize.height)
shapeLayer.fillColor = UIColor.clear.cgColor
shapeLayer.strokeColor = color
shapeLayer.lineWidth = 2.0
shapeLayer.lineJoin = CAShapeLayerLineJoin.round
shapeLayer.lineDashPhase = 3.0
shapeLayer.lineDashPattern = [9,6]
shapeLayer.path = UIBezierPath(roundedRect: CGRect(x: 0, y: shapeRect.height, width: shapeRect.width, height: 0), cornerRadius: 0).cgPath
if (cell.isBorderAdded) {
cell.shapeLayer!.removeFromSuperlayer()
}
cell.shapeLayer = shapeLayer
cell.isBorderAdded = true
cell.layer.addSublayer(shapeLayer)
}
How to display dashed bottom border at the end of each cell properly?
Your are adding a sublayer in your cell's layer with a fixed position:
shapeLayer.position = CGPoint(x: frameSize.width/2, y: frameSize.height)
[...]
cell.layer.addSublayer(shapeLayer)
So it doesn't stick to your cell's bottom side.
You could update this layer's position each time the cell's height change, but my suggestion from a performance and simplicity point of view would be use autolayout.
Add a subview at the bottom of your cell, add the constraints to make it stick, and add only once (in awakeFromNib for example if it's designed in IB) the dashedLayer inside.
Using this example I am trying to add a dashed border to my UITableView.
Trying to draw dashed border for UITableViewCell
But it does not work. It shows nothing.
func addDashedBottomBorder(to cell: UITableViewCell) {
let color = UIColor.black.cgColor
let shapeLayer:CAShapeLayer = CAShapeLayer()
let frameSize = cell.frame.size
let shapeRect = CGRect(x: 0, y: 0, width: frameSize.width, height: 0)
shapeLayer.bounds = shapeRect
shapeLayer.position = CGPoint(x: frameSize.width/2, y: frameSize.height)
shapeLayer.fillColor = UIColor.clear.cgColor
shapeLayer.strokeColor = color
shapeLayer.lineWidth = 2.0
shapeLayer.lineJoin = kCALineJoinRound
shapeLayer.lineDashPattern = [9,6]
shapeLayer.path = UIBezierPath(roundedRect: CGRect(x: 0, y: shapeRect.height, width: shapeRect.width, height: 0), cornerRadius: 0).cgPath
cell.layer.addSublayer(shapeLayer)
}
I am using this method in cellForRowAt but it shows me nothing and in viewDidLoad, table.separatorStyle = .none.
From the below 2 lines of your code:
shapeLayer.lineJoin = kCALineJoinRound
shapeLayer.path = UIBezierPath(roundedRect: CGRect(x: 0, y: shapeRect.height, width: shapeRect.width, height: 0), cornerRadius: 0).cgPath
kCALineJoinRound is making upper and lower dash lines but they are overlapping due to the height of UIBezierPath is 0. So, Updated your code as:
shapeLayer.path = UIBezierPath(roundedRect: CGRect(x: 0, y: shapeRect.height, width: shapeRect.width, height: 1), cornerRadius: 0).cgPath
It will hide the lower line and you will get the desired result.
Best Solution:
Rather than hiding lower dash line, you can correct it by providing just lineDashPhase to your CAShapeLayer, as:
shapeLayer.lineJoin = kCALineJoinRound
shapeLayer.lineDashPhase = 3.0 // Add "lineDashPhase" property to CAShapeLayer
shapeLayer.lineDashPattern = [9,6]
shapeLayer.path = UIBezierPath(roundedRect: CGRect(x: 0, y: shapeRect.height, width: shapeRect.width, height: 0), cornerRadius: 0).cgPath
Received line is:
How can I add a dashed border in certain side of the UIView only?Have referred to Dashed line border around UIView link, but I am kind of confused while giving the path for all the edges of a view.ok so, this is my code for adding a straight line border in particular side of a view:
func addRightBorder(with color: UIColor, andWidth borderWidth: CGFloat,view:UIView) {
let border = UIView()
border.backgroundColor = color
border.autoresizingMask = [.flexibleHeight, .flexibleLeftMargin]
border.frame = CGRect(x: view.frame.size.width - borderWidth, y: 0, width: borderWidth, height: view.frame.size.height)
//border.addDashedLine(color: UIColor.red)
border.addDashedLine(color: UIColor.red)
view.addSubview(border)
}*
How can I achieve the same thing but for dashed/dotted lines?
In one of my app, I also needed a similar thing and I created UIView Extension.
Take a look at my code snippet,
extension UIView {
func removeDashedLine() {
_ = layer.sublayers?.filter({ $0.name == "DashedTopLine" }).map({ $0.removeFromSuperlayer() })
}
func addDashedLine(_ path: UIBezierPath ,pattern : [NSNumber] = [1, 5], color: UIColor = UIColor.red) {
self.backgroundColor = UIColor.clear
let shapeLayer: CAShapeLayer = CAShapeLayer()
let frameSize = self.frame.size
let shapeRect = CGRect(x: 0, y: 0, width: frameSize.width, height: frameSize.height)
shapeLayer.name = "DashedTopLine"
shapeLayer.frame = shapeRect
//shapeLayer.position = CGPoint(x: frameSize.width / 2, y: frameSize.height / 2)
shapeLayer.fillColor = UIColor.clear.cgColor
shapeLayer.strokeColor = color.cgColor
shapeLayer.lineWidth = 1
shapeLayer.lineJoin = kCALineJoinRound
shapeLayer.lineDashPattern = pattern
shapeLayer.path = nil
shapeLayer.path = path.cgPath
self.layer.insertSublayer(shapeLayer, at: 0)
}
}
It may not do exactly what you want but should help you
Hello Guys i have been trying to Draw the Dotted line below UILabel using this code
extension UIView{
func addDashedBorder() {
self.layoutIfNeeded()
let color = UIColor.lightGrayColor().CGColor
let shapeLayer:CAShapeLayer = CAShapeLayer()
let frameSize = self.frame.size
let shapeRect = CGRect(x: 0, y: 0, width: frameSize.width, height: 0)
shapeLayer.bounds = shapeRect
shapeLayer.position = CGPoint(x: frameSize.width/2, y: frameSize.height)
shapeLayer.fillColor = UIColor.clearColor().CGColor
shapeLayer.strokeColor = color
shapeLayer.lineWidth = 0.50
shapeLayer.lineJoin = kCALineJoinRound
shapeLayer.lineDashPattern = [3,2]
shapeLayer.path = UIBezierPath(roundedRect: CGRectMake(0, shapeRect.height, shapeRect.width, 0), cornerRadius: 0).CGPath
self.layer.addSublayer(shapeLayer)
}
}
So here i have been trying to create the extension so i can utilize it to every where in my code. but this doesn't give me the perfect result some time.
sometimes this code failed just check the Gender and Birth date in both the label i have used the same code but not getting the expected result, Any suggestion ?