A simple UIButton subclass with inbuilt activity indicator to show loading or task in progress.

Drag and drop the file into your project folder. Make sure Copy Files is checked and file is added to target.

• progressColor - Determines the color of activity indicator. Default is white. Can be changed from storyboard. Property is IBInspectable.
• style - enum representing UIActivityIndicatorStyle. Default is .white
• isAnimating - Returns true|false. True when inidicator is animating.

• startAnimating() - Disables user interaction and shows activity indicator.
• stopAnimating() - Enables user interaction and hides activity indicator.
• set(enabled: Bool) - Enables the user interaction of button and changes the alpha but don't show/hide activity indicator.

Keep in mind to show/hide indicator on the main thread.

Note: When loader is animating, alpha of button is set to 0.5 to give a fade out effect.

Change the class of button to UDProgressButton in Identity inspector. Create @IBOultet and access properties and methods.

let frame = CGRect(x: 0, y:0, width: 175.0, height: 50.0)
let button = UDProgressButton(frame: frame)
button.progressColor = .red

button.startAnimating()
APIManager.login(email: "[email protected]") {
  [weak self] (success) in
  if success {
    DispatchQueue.main.async {
      self?.button.stopAnimating()
    }
  }
}

Thanks for using the widget 🙏