Created
January 3, 2022 05:14
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[iOS] Global Loading Indicator
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| // | |
| // LoadingIndicator.swift | |
| // | |
| // Created by 홍경표 on 2021/12/28. | |
| // | |
| import UIKit | |
| public class LoadingIndicator { | |
| private static weak var currentIndicator: UIActivityIndicatorView? | |
| public class func showLoading() { | |
| // keyWindow 객체 획득 | |
| guard let window = UIApplication.shared.windows.filter({ $0.isKeyWindow }).first else { return } | |
| let loadingIndicatorView: UIActivityIndicatorView | |
| if let existedView = window.subviews.first(where: { $0 is UIActivityIndicatorView }) as? UIActivityIndicatorView { | |
| loadingIndicatorView = existedView | |
| } else { | |
| loadingIndicatorView = UIActivityIndicatorView(style: .large) | |
| } | |
| loadingIndicatorView.frame = window.frame | |
| loadingIndicatorView.color = .white | |
| loadingIndicatorView.backgroundColor = .black.withAlphaComponent(0.5) | |
| window.addSubview(loadingIndicatorView) | |
| loadingIndicatorView.startAnimating() | |
| currentIndicator = loadingIndicatorView | |
| } | |
| public class func hideLoading() { | |
| DispatchQueue.main.async { | |
| UIView.animate( | |
| withDuration: 0.3, | |
| delay: 0, | |
| options: .curveEaseInOut, | |
| animations: { | |
| currentIndicator?.alpha = 0 | |
| }, | |
| completion: { _ in | |
| currentIndicator?.removeFromSuperview() | |
| } | |
| ) | |
| } | |
| } | |
| } |
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