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

simple activity controller class !!!

class ActivityIndicator: UIVisualEffectView {


let activityIndictor: UIActivityIndicatorView = UIActivityIndicatorView(activityIndicatorStyle: UIActivityIndicatorViewStyle.WhiteLarge)
let label: UILabel = UILabel()
let blurEffect = UIBlurEffect(style: .Dark)
let vibrancyView: UIVisualEffectView

init() {

    self.vibrancyView = UIVisualEffectView(effect: UIVibrancyEffect(forBlurEffect: blurEffect))
    super.init(effect: blurEffect)
    self.setup()
}

required init?(coder aDecoder: NSCoder) {

    self.vibrancyView = UIVisualEffectView(effect: UIVibrancyEffect(forBlurEffect: blurEffect))
    super.init(coder: aDecoder)
    self.setup()
}

func setup() {

    contentView.addSubview(vibrancyView)
    vibrancyView.contentView.addSubview(activityIndictor)
    activityIndictor.startAnimating()
}

override func didMoveToSuperview() {
    super.didMoveToSuperview()

    if let superview = self.superview {
        let width: CGFloat = 75.0
        let height: CGFloat = 75.0
        self.frame = CGRectMake(superview.frame.size.width / 2 - width / 2,
                                superview.frame.height / 2 - height / 2,
                                width,
                                height)
        vibrancyView.frame = self.bounds
        let activityIndicatorSize: CGFloat = 40
        activityIndictor.frame = CGRectMake(18, height / 2 - activityIndicatorSize / 2,
                                            activityIndicatorSize,
                                            activityIndicatorSize)
        layer.cornerRadius = 8.0
        layer.masksToBounds = true

    }
}

func show() {
    self.hidden = false
}

func hide() {
    self.hidden = true
}}

usage :-

let activityIndicator = ActivityIndicator()
    self.view.addSubview(activityIndicator)

to hide :-

activityIndicator.hide()