How to display an activity indicator with text on iOS 8 with Swift?

Question

I wanna show, programmatically, an activity indicator with text, like the one in the Photos app (after editing and saving a picture). How can I do this?

Answer 1

In Swift 3

Declare variables which we will use

var activityIndicator = UIActivityIndicatorView()
let loadingView = UIView()
let loadingLabel = UILabel()

Set label , view and activityIndicator

func setLoadingScreen(myMsg : String) {
    let width: CGFloat = 120
    let height: CGFloat = 30
    let x = (self.view.frame.width / 2) - (width / 2)
    let y = (169 / 2) - (height / 2) + 60
    loadingView.frame = CGRect(x: x, y: y, width: width, height: height)
    self.loadingLabel.textColor = UIColor.white
    self.loadingLabel.textAlignment = NSTextAlignment.center
    self.loadingLabel.text = myMsg
    self.loadingLabel.frame = CGRect(x: 0, y: 0, width: 160, height: 30)
    self.loadingLabel.isHidden = false
    self.activityIndicator.activityIndicatorViewStyle = UIActivityIndicatorViewStyle.white
    self.activityIndicator.frame = CGRect(x: 0, y: 0, width: 30, height: 30)
    self.activityIndicator.startAnimating()
    loadingView.addSubview(self.spinner)
    loadingView.addSubview(self.loadingLabel)
    self.view.addSubview(loadingView)
}

Start Animation

@IBAction func start_animation(_ sender: Any) {
    setLoadingScreen(myMsg: "Loading...")
}

Stop Animation

@IBAction func stop_animation(_ sender: Any) {
    self.spinner.stopAnimating()
    UIApplication.shared.endIgnoringInteractionEvents()
    self.loadingLabel.isHidden = true
}