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pulsinghalo

PulsingHalo is a lightweight UIKit library that allows you to easily add a pulsing halo effect to any UIView. This effect is commonly seen in iOS applications to indicate active or selected elements.

Installation

To install PulsingHalo using Cocoapods, add the following line to your Podfile:

pod 'PulsingHalo'

Usage

First, import the PulsingHalo framework into your Swift file:

import PulsingHalo

Then, to add a pulsing halo effect to a UIView, follow these steps:

  1. Create an instance of PulsingHaloLayer:
    2. let pulsingHalo = PulsingHaloLayer()
  2. Set the properties of the pulsing halo layer, such as the halo color and radius:
    3. pulsingHalo.backgroundColor = UIColor.blue.cgColor
pulsingHalo.radius = 100
  3. Attach the pulsing halo layer to your view’s layer:
    4. yourView.layer.addSublayer(pulsingHalo)
  4. Start or stop the pulsing effect:
    5. pulsingHalo.start()
pulsingHalo.stop()

Customization

The PulsingHalo layer offers various properties to customize the appearance and behavior of the effect. These properties include:

  • backgroundColor: The color of the halo.
  • radius: The radius of the halo in points.
  • animationDuration: The duration of one pulse animation cycle.
  • interval: The time interval between pulse animations.
  • repeatCount: The number of times the pulse animation repeats.
  • animationGroup: The animation group used for the pulse animation.

You can access and modify these properties directly on the PulsingHaloLayer instance.

Example

Here’s an example that demonstrates how to add and customize a pulsing halo effect using PulsingHalo in your iOS application:

import UIKit
import PulsingHalo

class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // Create a UIView
        let myView = UIView(frame: CGRect(x: 100, y: 100, width: 200, height: 200))
        myView.backgroundColor = .lightGray
        
        // Create an instance of PulsingHaloLayer
        let pulsingHalo = PulsingHaloLayer()
        pulsingHalo.backgroundColor = UIColor.blue.cgColor
        pulsingHalo.radius = 100
        
        // Attach the pulsing halo layer to myView's layer
        myView.layer.addSublayer(pulsingHalo)
        
        // Optionally customize other properties of the pulsing halo layer
        
        // Start the pulsing effect
        pulsingHalo.start()
        
        // Add myView to the view hierarchy
        view.addSubview(myView)
    }
}

Conclusion

PulsingHalo provides an easy-to-use solution for adding a pulsing halo effect to any UIView in your iOS application. With its customizable properties, you can easily tailor the effect to match your app’s design. Explore the possibilities and enhance your user interface with PulsingHalo!