close360.swift

    @IBAction func close360Pressed(_ sender: Any) {
        self.vviewmgr.stop()
        
        self.view.bringSubviewToFront(self.activityIndicator)
        self.activityIndicator.alpha = 1
        self.activityIndicator.startAnimating()
        
        UIView.animate(withDuration: 0.5) {
            self.seekSlider.alpha = 0
        }
        
        let when = DispatchTime.now() + 1
        DispatchQueue.main.asyncAfter(deadline: when) {
            UIView.animate(withDuration: 1, delay: 0.0, options: [], animations: {
                self.activityIndicator.alpha = 0
                self.activityIndicator.stopAnimating()
                self.seekSlider.alpha = 0
                
                //present ViewController here
                let modalStyle = UIModalTransitionStyle.crossDissolve
                let svc = ViewController()
                    svc.modalTransitionStyle = modalStyle
                self.present(svc, animated: true, completion: nil)
                
            }, completion: nil)
        }
    }