Code refactoring

Sources/OpenSourceViewController/LoadingViewController.swift

@@ -0,0 +1,42 @@
+//
+//  LoadingViewController.swift
+//  OpenSourceControllerDemo
+//
+//  Created by Florian Gabach on 23/10/2018.
+//  Copyright © 2018 OpenSourceController. All rights reserved.
+//
+
+import UIKit
+
+final class LoadingViewController: UIViewController {
+    
+    // MARK: - Var
+    
+    fileprivate lazy var activityIndicator: UIActivityIndicatorView = {
+        let activityIndicator = UIActivityIndicatorView(style: UIActivityIndicatorView.Style.gray)
+        activityIndicator.startAnimating()
+        return activityIndicator
+    }()
+    
+    fileprivate var config: OpenSourceControllerConfig
+    
+    // MARK: - Lifecycle
+    
+    init(configuration: OpenSourceControllerConfig) {
+        self.config = configuration
+        super.init(nibName: nil, bundle: nil)
+    }
+    
+    required init?(coder aDecoder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+    
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        
+        self.view.backgroundColor = self.config.uiConfig.backgroundColor
+        
+        self.view.addSubview(self.activityIndicator)
+        self.activityIndicator.pinCenter(to: self.view)
+    }
+}