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iOS Loading Overlay View - SWIFT
//
// LoadingOverlay.swift
// app
//
// Created by Igor de Oliveira Sa on 25/03/15.
// Copyright (c) 2015 Igor de Oliveira Sa. All rights reserved.
//
// Usage:
//
// # Show Overlay
// LoadingOverlay.shared.showOverlay(self.navigationController?.view)
//
// # Hide Overlay
// LoadingOverlay.shared.hideOverlayView()
import UIKit
import Foundation
public class LoadingOverlay{
var overlayView = UIView()
var activityIndicator = UIActivityIndicatorView()
class var shared: LoadingOverlay {
struct Static {
static let instance: LoadingOverlay = LoadingOverlay()
}
return Static.instance
}
public func showOverlay(view: UIView!) {
overlayView = UIView(frame: UIScreen.mainScreen().bounds)
overlayView.backgroundColor = UIColor(red: 0, green: 0, blue: 0, alpha: 0.5)
activityIndicator = UIActivityIndicatorView(activityIndicatorStyle: UIActivityIndicatorViewStyle.WhiteLarge)
activityIndicator.center = overlayView.center
overlayView.addSubview(activityIndicator)
activityIndicator.startAnimating()
view.addSubview(overlayView)
}
public func hideOverlayView() {
activityIndicator.stopAnimating()
overlayView.removeFromSuperview()
}
}
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