Esq의 답변이 작동하는 동안 뷰를 자체 클래스로 분리하여 좋은 구성 요소 아키텍처와 더 일치하는 자체 구현을 추가했습니다. 또한 iOS 8에 도입 된 동적 블러 링을 사용합니다.

다음은 이미지 배경에서 내 모습입니다.

이에 대한 코드는 자체 UIView 클래스에 캡슐화되어 있으므로 원할 때마다 재사용 할 수 있습니다.

Swift 3 업데이트

용법

func viewDidLoad() {
  super.viewDidLoad()

  // Create and add the view to the screen.
  let progressHUD = ProgressHUD(text: "Saving Photo")
  self.view.addSubview(progressHUD)
  // All done!

  self.view.backgroundColor = UIColor.black
}

UIView 코드

import UIKit

class ProgressHUD: UIVisualEffectView {

  var text: String? {
    didSet {
      label.text = text
    }
  }

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

  init(text: String) {
    self.text = text
    self.vibrancyView = UIVisualEffectView(effect: UIVibrancyEffect(blurEffect: blurEffect))
    super.init(effect: blurEffect)
    self.setup()
  }

  required init?(coder aDecoder: NSCoder) {
    self.text = ""
    self.vibrancyView = UIVisualEffectView(effect: UIVibrancyEffect(blurEffect: blurEffect))
    super.init(coder: aDecoder)
    self.setup()
  }

  func setup() {
    contentView.addSubview(vibrancyView)
    contentView.addSubview(activityIndictor)
    contentView.addSubview(label)
    activityIndictor.startAnimating()
  }

  override func didMoveToSuperview() {
    super.didMoveToSuperview()

    if let superview = self.superview {

      let width = superview.frame.size.width / 2.3
      let height: CGFloat = 50.0
      self.frame = CGRect(x: superview.frame.size.width / 2 - width / 2,
                      y: superview.frame.height / 2 - height / 2,
                      width: width,
                      height: height)
      vibrancyView.frame = self.bounds

      let activityIndicatorSize: CGFloat = 40
      activityIndictor.frame = CGRect(x: 5,
                                      y: height / 2 - activityIndicatorSize / 2,
                                      width: activityIndicatorSize,
                                      height: activityIndicatorSize)

      layer.cornerRadius = 8.0
      layer.masksToBounds = true
      label.text = text
      label.textAlignment = NSTextAlignment.center
      label.frame = CGRect(x: activityIndicatorSize + 5,
                           y: 0,
                           width: width - activityIndicatorSize - 15,
                           height: height)
      label.textColor = UIColor.gray
      label.font = UIFont.boldSystemFont(ofSize: 16)
    }
  }

  func show() {
    self.isHidden = false
  }

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

스위프트 2

사용 방법에 대한 예는 다음과 같습니다.

override func viewDidLoad() {
    super.viewDidLoad()

    // Create and add the view to the screen.
    let progressHUD = ProgressHUD(text: "Saving Photo")
    self.view.addSubview(progressHUD)
    // All done!

    self.view.backgroundColor = UIColor.blackColor()
}

다음은 UIView 코드입니다.

import UIKit

class ProgressHUD: UIVisualEffectView {

    var text: String? {
        didSet {
            label.text = text
        }
    }
    let activityIndictor: UIActivityIndicatorView = UIActivityIndicatorView(activityIndicatorStyle: UIActivityIndicatorViewStyle.White)
    let label: UILabel = UILabel()
    let blurEffect = UIBlurEffect(style: .Light)
    let vibrancyView: UIVisualEffectView

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

    required init(coder aDecoder: NSCoder) {
        self.text = ""
        self.vibrancyView = UIVisualEffectView(effect: UIVibrancyEffect(forBlurEffect: blurEffect))
        super.init(coder: aDecoder)
        self.setup()

    }

    func setup() {
        contentView.addSubview(vibrancyView)
        vibrancyView.contentView.addSubview(activityIndictor)
        vibrancyView.contentView.addSubview(label)
        activityIndictor.startAnimating()
    }

    override func didMoveToSuperview() {
        super.didMoveToSuperview()

        if let superview = self.superview {

            let width = superview.frame.size.width / 2.3
            let height: CGFloat = 50.0
            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(5, height / 2 - activityIndicatorSize / 2,
                activityIndicatorSize,
                activityIndicatorSize)

            layer.cornerRadius = 8.0
            layer.masksToBounds = true
            label.text = text
            label.textAlignment = NSTextAlignment.Center
            label.frame = CGRectMake(activityIndicatorSize + 5, 0, width - activityIndicatorSize - 15, height)
            label.textColor = UIColor.grayColor()
            label.font = UIFont.boldSystemFontOfSize(16)
        }
    }

    func show() {
        self.hidden = false
    }

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

이 정보가 도움이 되었기를 바랍니다. 필요한 곳에서 언제든지이 코드를 사용하십시오.