Padded Label in Swift 5

PaddedLabel.swift

//Created by SOUR LEANGCHHEAN

class PaddedLabel: UILabel {
    
    // MARK: - Properties
    
    var padding: UIEdgeInsets = .zero {
        didSet {
            invalidateIntrinsicContentSize()
        }
    }
    
    // MARK: - Overrides
    
    override var intrinsicContentSize: CGSize {
        var size = super.intrinsicContentSize
        size.width += padding.left + padding.right
        size.height += padding.top + padding.bottom
        return size
    }
    
    // MARK: - Initializers
    
    override init(frame: CGRect) {
        super.init(frame: frame)
    }
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
    }
    
    // MARK: - Drawing
    
    override func drawText(in rect: CGRect) {
        super.drawText(in: rect.inset(by: padding))
    }
}

The PaddedLabel class is a custom subclass of UILabel in Swift that allows you to add padding around the text displayed within the label. Here's an example of how you can use this class:

Example Usage:

1. Creating an Instance of PaddedLabel:

   let paddedLabel = PaddedLabel()
   paddedLabel.text = "Hello, Padded Label!"
   paddedLabel.padding = UIEdgeInsets(top: 10, left: 10, bottom: 10, right: 10)

2. Adding PaddedLabel to a View:

   view.addSubview(paddedLabel)
   paddedLabel.translatesAutoresizingMaskIntoConstraints = false
   NSLayoutConstraint.activate([
       paddedLabel.topAnchor.constraint(equalTo: view.topAnchor, constant: 20),
       paddedLabel.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 20)
   ])

3. Customizing PaddedLabel:

   paddedLabel.textColor = .blue
   paddedLabel.font = UIFont.systemFont(ofSize: 16)

4. Updating Padding Dynamically:

   paddedLabel.padding = UIEdgeInsets(top: 5, left: 5, bottom: 5, right: 5)

Explanation:

• The padding property allows you to set the padding around the label's text.
• The intrinsicContentSize override calculates the size of the label including the padding.
• The drawText(in:) override adjusts the text drawing rect to include the padding.
• You can create instances of PaddedLabel, set text, padding, and customize it like a regular UILabel.
• Add the PaddedLabel to your view hierarchy and position it using Auto Layout or frame-based layout.

By using the PaddedLabel class, you can easily create labels with padding around the text, providing a more visually appealing and customizable way to display text in your app.