Swift Label Only Border Left

swift label only border left

Here is an extension you can add to your project:

extension CALayer {

    func addBorder(edge: UIRectEdge, color: UIColor, thickness: CGFloat) {

        var border = CALayer()

        switch edge {
        case UIRectEdge.Top:
            border.frame = CGRectMake(0, 0, CGRectGetHeight(self.frame), thickness)
            break
        case UIRectEdge.Bottom:
            border.frame = CGRectMake(0, CGRectGetHeight(self.frame) - thickness, UIScreen.mainScreen().bounds.width, thickness)
            break
        case UIRectEdge.Left:
            border.frame = CGRectMake(0, 0, thickness, CGRectGetHeight(self.frame))
            break
        case UIRectEdge.Right:
            border.frame = CGRectMake(CGRectGetWidth(self.frame) - thickness, 0, thickness, CGRectGetHeight(self.frame))
            break
        default:
            break
        }

        border.backgroundColor = color.CGColor;

        self.addSublayer(border)
    }

}

And the use it like this:

cell.Label.layer.addBorder(UIRectEdge.Top, color: UIColor.greenColor(), thickness: 0.5)

FOR SWIFT 3, 4 & 5:

extension CALayer {

    func addBorder(edge: UIRectEdge, color: UIColor, thickness: CGFloat) {

        let border = CALayer()

        switch edge {
        case UIRectEdge.top:
            border.frame = CGRect(x: 0, y: 0, width: self.frame.height, height: thickness)
            break
        case UIRectEdge.bottom:
            border.frame = CGRect(x: 0, y: self.frame.height - thickness, width: UIScreen.main.bounds.width, height: thickness)
            break
        case UIRectEdge.left:
            border.frame = CGRect(x: 0, y: 0, width: thickness, height: self.frame.height)
            break
        case UIRectEdge.right:
            border.frame = CGRect(x: self.frame.width - thickness, y: 0, width: thickness, height: self.frame.height)
            break
        default:
            break
        }

        border.backgroundColor = color.cgColor;

        self.addSublayer(border)
    }

}

draw only top, right, and bottom border around a uilabel

You can use a mask. This is the code I used to test the theory, and it works well:

// Define the border width in a variable, we'll be using it elsewhere
CGFloat borderWidth = 1.0;

// This creates a testing view to test the theory, in your case this will be your UILabel
UIView* view = [[UIView alloc] initWithFrame:CGRectMake(20, 60, 250, 100)];
view.layer.borderColor = [UIColor blackColor].CGColor;
view.layer.borderWidth = borderWidth;
[self.view addSubview:view];

// Create the mask to cover the area of the view you want to **show**
// Here, we create a mask that covers most of the view, except the left edge
// The mask needs to be coloured in black, as black acts as transparent, whereas white is opaque in mask parlance
UIView* mask = [[UIView alloc] initWithFrame:CGRectMake(borderWidth, 0, view.frame.size.width - borderWidth, view.frame.size.height)];
mask.backgroundColor = [UIColor blackColor];
view.layer.mask = mask.layer;

You can adjust the size and position of the mask (given the borderWidth) to show/hide the border edges you're interested in. The example above hides the left edge.

How to add a border just on the top side of a UIView

I consider subclassing UIView and overriding drawRect overkill here. Why not add an extension on UIView and add border subviews?

@discardableResult
func addBorders(edges: UIRectEdge,
                color: UIColor,
                inset: CGFloat = 0.0,
                thickness: CGFloat = 1.0) -> [UIView] {

    var borders = [UIView]()

    @discardableResult
    func addBorder(formats: String...) -> UIView {
        let border = UIView(frame: .zero)
        border.backgroundColor = color
        border.translatesAutoresizingMaskIntoConstraints = false
        addSubview(border)
        addConstraints(formats.flatMap {
            NSLayoutConstraint.constraints(withVisualFormat: $0,
                                           options: [],
                                           metrics: ["inset": inset, "thickness": thickness],
                                           views: ["border": border]) })
        borders.append(border)
        return border
    }

    if edges.contains(.top) || edges.contains(.all) {
        addBorder(formats: "V:|-0-[border(==thickness)]", "H:|-inset-[border]-inset-|")
    }

    if edges.contains(.bottom) || edges.contains(.all) {
        addBorder(formats: "V:[border(==thickness)]-0-|", "H:|-inset-[border]-inset-|")
    }

    if edges.contains(.left) || edges.contains(.all) {
        addBorder(formats: "V:|-inset-[border]-inset-|", "H:|-0-[border(==thickness)]")
    }

    if edges.contains(.right) || edges.contains(.all) {
        addBorder(formats: "V:|-inset-[border]-inset-|", "H:[border(==thickness)]-0-|")
    }

    return borders
}

    // Usage:         
    view.addBorder(edges: [.all]) // All with default arguments 
    view.addBorder(edges: [.top], color: .green) // Just Top, green, default thickness
    view.addBorder(edges: [.left, .right, .bottom], color: .red, thickness: 3) // All except Top, red, thickness 3

With this code you're not tied to your subclass too, you can apply it to anything and everything that inherits from UIView - reusable in your project, and any others. Pass in other arguments to your methods to define other colours and widths. Many options.

Swift - Setting a label border using border width and color is working, but setting when setting a specific side the frame width is off

Auto layout hasn't had the time to layout your views by the time you call addBorder.

cell.setNeedsLayout()
cell.layoutIfNeeded()

forces a calculation of UILabel dimensions causing the expected values to get in addBorder method.

TextField with Label over the border at Top-Left position

Using this pod, you can get the same design

1. Take UIView on Storyboard and set constraints
2. Make class which is a subclass of UIView and import pods MaterialComponents.MaterialTextFields and MaterialComponents.MaterialTextFields_ColorThemer

class CustomOutlinedTxtField: UIView {

private var textFieldControllerFloating: MDCTextInputControllerOutlined!
var textField: MDCTextField!

@IBInspectable var placeHolder: String!
@IBInspectable var value: String!
@IBInspectable var primaryColor: UIColor! = .purple

override open func draw(_ rect: CGRect) {
    super.draw(rect)

    textField.frame = CGRect(x: 0, y: 0, width: self.frame.size.width, height: self.frame.size.height)

}
open override func awakeFromNib() {
    super.awakeFromNib()
    setUpProperty()
}
func setUpProperty() {
    //Change this properties to change the propperties of text
    textField = MDCTextField(frame: CGRect(x: 0, y: 0, width: self.frame.size.width, height: self.frame.size.height))
    textField.placeholder = placeHolder
    textField.text = value

    //Change this properties to change the colors of border around text
    textFieldControllerFloating = MDCTextInputControllerOutlined(textInput: textField)

    textFieldControllerFloating.activeColor = primaryColor
    textFieldControllerFloating.floatingPlaceholderActiveColor = primaryColor
    textFieldControllerFloating.normalColor = UIColor.lightGray
    textFieldControllerFloating.inlinePlaceholderColor = UIColor.lightGray

    //Change this font to make borderRect bigger
    textFieldControllerFloating.inlinePlaceholderFont = UIFont.systemFont(ofSize: 14)
    textFieldControllerFloating.textInsets(UIEdgeInsets(top: 0, left: 0, bottom: 0, right: 0))

    self.addSubview(textField)
}

}

3. Assign that custom class to UIView

Result

Setting custom border using sublass of UILabel in swift

Change your function like this.

func setBottomBorder(){

    let borderWidth:CGFloat = 4.0 //Change this according to your needs
    let lineView = UIView.init(frame: CGRect.init(x: 0, y:self.frame.size.height - borderWidth , width: self.frame.size.width, height: borderWidth))
    lineView.backgroundColor = UIColor.green
    self.addSubview(lineView)

}

From your attribute inspector, don't forget to change class like this.

output:

swift drawing borders around textview or labels

Add a shape layer and draw the lines in that layer. Note that layers do not participate in auto layout so you need to put your code in viewDidLayoutSubviews or subclass uilabel and do this in layout subviews. Here is a playground example using the UILabel subclass:

    import PlaygroundSupport
    import UIKit
    class L: UILabel {
        var strokeColor = UIColor.blue
        var strokeWidth = CGFloat(0.5)
        private lazy var labelBorderLayer:CAShapeLayer = {
            let shapeLayer = CAShapeLayer()
            self.layer.addSublayer(shapeLayer)
            return shapeLayer
        }()
        override func layoutSubviews() {
            super.layoutSubviews()
            let path = CGMutablePath()
            path.move(to: CGPoint(x: 0, y: bounds.size.height))
            path.addLine(to: CGPoint(x:  bounds.size.width, y: bounds.size.height))
            path.addLine(to: CGPoint(x:  bounds.size.width, y: 0))
            labelBorderLayer.path = path
            labelBorderLayer.strokeColor = strokeColor.cgColor
            labelBorderLayer.lineWidth = strokeWidth
            labelBorderLayer.fillColor = UIColor.clear.cgColor
        }
    }

    let v = UIView(frame: CGRect(x: 0, y: 0, width: 200, height: 200))
    let l = L(frame: v.frame.insetBy(dx: 50, dy: 80))
    v.addSubview(l)
    l.textColor = .white
    l.textAlignment = .center
    l.text = "gjgkjgjgjgj"
    v.backgroundColor = .red
    PlaygroundPage.current.liveView = v

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