ViewController.swift

import DemoActivityIndicator

class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        self.showActivityIndicator()
        DispatchQueue.main.asyncAfter(deadline: .now() + 3) {
            self.hideActivityIndicator()
            self.showActivityIndicator(isHidden: false, message: "With great power comes great responsibility")
            DispatchQueue.main.asyncAfter(deadline: .now() + 3) {
                self.hideActivityIndicator()
            }
        }
        
    }
}