ios - How to adjust font size to fit height and width of UILabel

Ios - How to adjust font size to fit height and width of UILabel

To adjust the font size of a UILabel to fit both height and width, you can use the adjustsFontSizeToFitWidth property along with minimumScaleFactor in combination. Here's how you can achieve this in Swift:

import UIKit class ViewController: UIViewController { @IBOutlet weak var myLabel: UILabel! override func viewDidLoad() { super.viewDidLoad() // Set the initial text and other properties of your label myLabel.text = "Your Text Here" myLabel.adjustsFontSizeToFitWidth = true myLabel.minimumScaleFactor = 0.5 // Adjust this value as needed myLabel.numberOfLines = 1 // Set the number of lines to 1 for a single-line label } }

Make sure to set the adjustsFontSizeToFitWidth property to true. This allows the font size to be adjusted automatically to fit the width of the label. The minimumScaleFactor property sets the minimum scale factor for the text. You can adjust this value based on your requirements.

In Interface Builder, you can set these properties directly on the UILabel from the Attributes inspector.

Note: While this approach adjusts the font size to fit the width, it may also shrink the text to fit the height, which might not be ideal in all cases. If you have specific requirements for both width and height independently, you might need to implement a more custom solution.

Examples

  1. "iOS UILabel auto-adjust font size to fit width"

    • Code:
      yourLabel.adjustsFontSizeToFitWidth = true yourLabel.minimumScaleFactor = 0.5 // Adjust as needed
    • Description: Enables auto-adjustment of the font size to fit the width of the UILabel, with a minimum scale factor.

  2. "Swift UILabel adjust font size to fit height"

    • Code:
      yourLabel.adjustsFontSizeToFitWidth = false yourLabel.numberOfLines = 0 yourLabel.sizeToFit()
    • Description: Disables width-based adjustment and sets the number of lines to 0, allowing the label to adjust its height based on the content.

  3. "iOS Swift UILabel auto-shrink font size example"

    • Code:
      yourLabel.adjustsFontSizeToFitWidth = true yourLabel.minimumScaleFactor = 0.5 // Adjust as needed yourLabel.numberOfLines = 1
    • Description: Uses adjustsFontSizeToFitWidth with a minimum scale factor and limits the number of lines to 1 for width-based adjustment.

  4. "Swift UILabel adjust font size to fit width and height"

    • Code:
      yourLabel.adjustsFontSizeToFitWidth = true yourLabel.minimumScaleFactor = min(yourLabel.bounds.size.height / yourLabel.font.pointSize, yourLabel.bounds.size.width / yourLabel.intrinsicContentSize.width)
    • Description: Adjusts font size based on both width and height constraints using a minimum scale factor.

  5. "iOS UILabel adjust font size dynamically Swift"

    • Code:
      yourLabel.adjustsFontSizeToFitWidth = true yourLabel.numberOfLines = 0 yourLabel.minimumScaleFactor = 0.5 // Adjust as needed yourLabel.lineBreakMode = .byWordWrapping
    • Description: Dynamically adjusts the font size to fit both width and height constraints for multi-line text.

  6. "Swift UILabel font size auto-shrink with constraints"

    • Code:
      yourLabel.adjustsFontSizeToFitWidth = true yourLabel.minimumScaleFactor = 0.5 // Adjust as needed yourLabel.setContentCompressionResistancePriority(.required, for: .horizontal) yourLabel.setContentCompressionResistancePriority(.required, for: .vertical)
    • Description: Uses content compression resistance priorities to guide auto-shrinking while respecting constraints.

  7. "iOS Swift UILabel fit text within constraints"

    • Code:
      yourLabel.adjustsFontSizeToFitWidth = true yourLabel.minimumScaleFactor = 0.5 // Adjust as needed yourLabel.numberOfLines = 0 yourLabel.sizeToFit()
    • Description: Ensures the label adjusts font size to fit both width and height constraints for multi-line text.

  8. "Swift UILabel dynamically adjust font size to fit text"

    • Code:
      yourLabel.adjustsFontSizeToFitWidth = true yourLabel.minimumScaleFactor = 0.5 // Adjust as needed yourLabel.numberOfLines = 0 yourLabel.sizeToFit()
    • Description: Dynamically adjusts font size to fit both width and height constraints based on the label's content.

  9. "iOS UILabel auto-shrink font size Swift programmatically"

    • Code:
      yourLabel.adjustsFontSizeToFitWidth = true yourLabel.minimumScaleFactor = 0.5 // Adjust as needed yourLabel.numberOfLines = 1 yourLabel.adjustsFontForContentSizeCategory = true
    • Description: Programmatically sets up auto-shrinking with a minimum scale factor for single-line text.

  10. "Swift UILabel auto-resize font size based on frame"

    • Code:
      yourLabel.adjustsFontSizeToFitWidth = true yourLabel.minimumScaleFactor = 0.5 // Adjust as needed yourLabel.numberOfLines = 0 yourLabel.lineBreakMode = .byWordWrapping yourLabel.frame.size.width = desiredWidth // Set your desired width yourLabel.sizeToFit()
    • Description: Adjusts the font size dynamically based on a specified width while allowing for multi-line text.

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