Create ViewControllerUtilsSwift2.swift

swift/ViewControllerUtilsSwift3.swift

@@ -0,0 +1,54 @@
+//
+//  ActivityIndicator.swift
+//  My Smart List
+//
+//  Created by Hakan on 21/06/2017.
+//  Copyright © 2017 HSmart Tech. All rights reserved.
+//
+import Foundation
+import UIKit
+
+class ViewControllerUtils {
+
+    var container: UIView = UIView()
+    var loadingView: UIView = UIView()
+    var activityIndicator: UIActivityIndicatorView = UIActivityIndicatorView()
+
+       func showActivityIndicator(uiView: UIView) {
+        container.frame = uiView.frame
+        container.center = uiView.center
+        container.backgroundColor = UIColorFromHex(rgbValue: 0xffffff, alpha: 0.3)
+
+        loadingView.frame = CGRect(x: 0, y: 0, width: 80, height: 80)
+        loadingView.center = uiView.center
+        loadingView.backgroundColor = UIColorFromHex(rgbValue: 0x444444, alpha: 0.7)
+        loadingView.clipsToBounds = true
+        loadingView.layer.cornerRadius = 10
+
+        activityIndicator.frame = CGRect(x: 0, y: 0, width: 40, height: 40)
+        activityIndicator.activityIndicatorViewStyle = UIActivityIndicatorViewStyle.whiteLarge
+        activityIndicator.center = CGPoint(x: loadingView.frame.size.width / 2, y:loadingView.frame.size.height / 2)
+
+
+        loadingView.addSubview(activityIndicator)
+        container.addSubview(loadingView)
+        uiView.addSubview(container)
+        activityIndicator.startAnimating()
+    }
+
+
+    func hideActivityIndicator(uiView: UIView) {
+        activityIndicator.stopAnimating()
+        container.removeFromSuperview()
+    }
+
+    func UIColorFromHex(rgbValue:UInt32, alpha:Double=1.0)->UIColor {
+        let red = CGFloat((rgbValue & 0xFF0000) >> 16)/256.0
+        let green = CGFloat((rgbValue & 0xFF00) >> 8)/256.0
+        let blue = CGFloat(rgbValue & 0xFF)/256.0
+        return UIColor(red:red, green:green, blue:blue, alpha:CGFloat(alpha))
+    }
+
+}
+// To use it add this file to your project and then first create class -> let v_c:ViewControllerUtils = ViewControllerUtils()
+// then call it to show or hide ->   v_c.showActivityIndicator(uiView: self.view) or   v_c.hideActivityIndicator(uiView: self.view)