migrating to swift 5.0

example/ios/Runner.xcodeproj/project.pbxproj

@@ -179,7 +179,7 @@
 					97C146ED1CF9000F007C117D = {
 						CreatedOnToolsVersion = 7.3.1;
 						DevelopmentTeam = PFP8UV45Y6;
-						LastSwiftMigration = 0910;
+						LastSwiftMigration = 1100;
 					};
 				};
 			};
@@ -188,6 +188,7 @@
 			developmentRegion = English;
 			hasScannedForEncodings = 0;
 			knownRegions = (
+				English,
 				en,
 				Base,
 			);
@@ -447,7 +448,7 @@
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
 				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
-				SWIFT_VERSION = 4.0;
+				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";
 			};
 			name = Debug;
@@ -475,7 +476,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
 				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
-				SWIFT_VERSION = 4.0;
+				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";
 			};
 			name = Release;

example/ios/Runner/AppDelegate.swift

@@ -5,7 +5,7 @@ import Flutter
 @objc class AppDelegate: FlutterAppDelegate {
   override func application(
     _ application: UIApplication,
-    didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?
+    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
   ) -> Bool {
     GeneratedPluginRegistrant.register(with: self)
     return super.application(application, didFinishLaunchingWithOptions: launchOptions)

ios/Classes/InAppBrowserWebViewController.swift

@@ -172,8 +172,8 @@ class InAppBrowserWebViewController: UIViewController, UIScrollViewDelegate, WKU
     }
     
     func prepareConstraints () {
-        containerWebView_BottomFullScreenConstraint = NSLayoutConstraint(item: self.containerWebView, attribute: NSLayoutAttribute.bottom, relatedBy: NSLayoutRelation.equal, toItem: self.view, attribute: NSLayoutAttribute.bottom, multiplier: 1, constant: 0)
-        containerWebView_TopFullScreenConstraint = NSLayoutConstraint(item: self.containerWebView, attribute: NSLayoutAttribute.top, relatedBy: NSLayoutRelation.equal, toItem: self.view, attribute: NSLayoutAttribute.top, multiplier: 1, constant: 0)
+        containerWebView_BottomFullScreenConstraint = NSLayoutConstraint(item: self.containerWebView, attribute: NSLayoutConstraint.Attribute.bottom, relatedBy: NSLayoutConstraint.Relation.equal, toItem: self.view, attribute: NSLayoutConstraint.Attribute.bottom, multiplier: 1, constant: 0)
+        containerWebView_TopFullScreenConstraint = NSLayoutConstraint(item: self.containerWebView, attribute: NSLayoutConstraint.Attribute.top, relatedBy: NSLayoutConstraint.Relation.equal, toItem: self.view, attribute: NSLayoutConstraint.Attribute.top, multiplier: 1, constant: 0)
         
         webView.translatesAutoresizingMaskIntoConstraints = false
         let height = NSLayoutConstraint(item: webView, attribute: .height, relatedBy: .equal, toItem: containerWebView, attribute: .height, multiplier: 1, constant: 0)
@@ -183,8 +183,8 @@ class InAppBrowserWebViewController: UIViewController, UIScrollViewDelegate, WKU
         let bottomContraint = NSLayoutConstraint(item: webView, attribute: .bottomMargin, relatedBy: .equal, toItem: containerWebView, attribute: .bottomMargin, multiplier: 1, constant: 0)
         containerWebView.addConstraints([height, width, leftConstraint, rightConstraint, bottomContraint])
         
-        webView_BottomFullScreenConstraint = NSLayoutConstraint(item: self.webView, attribute: NSLayoutAttribute.bottom, relatedBy: NSLayoutRelation.equal, toItem: self.containerWebView, attribute: NSLayoutAttribute.bottom, multiplier: 1, constant: 0)
-        webView_TopFullScreenConstraint = NSLayoutConstraint(item: self.webView, attribute: NSLayoutAttribute.top, relatedBy: NSLayoutRelation.equal, toItem: self.containerWebView, attribute: NSLayoutAttribute.top, multiplier: 1, constant: 0)
+        webView_BottomFullScreenConstraint = NSLayoutConstraint(item: self.webView, attribute: NSLayoutConstraint.Attribute.bottom, relatedBy: NSLayoutConstraint.Relation.equal, toItem: self.containerWebView, attribute: NSLayoutConstraint.Attribute.bottom, multiplier: 1, constant: 0)
+        webView_TopFullScreenConstraint = NSLayoutConstraint(item: self.webView, attribute: NSLayoutConstraint.Attribute.top, relatedBy: NSLayoutConstraint.Relation.equal, toItem: self.containerWebView, attribute: NSLayoutConstraint.Attribute.top, multiplier: 1, constant: 0)
     }
     
     func prepareWebView() {
@@ -254,7 +254,7 @@ class InAppBrowserWebViewController: UIViewController, UIScrollViewDelegate, WKU
     }
     
     func setWebViewFrame(_ frame: CGRect) {
-        print("Setting the WebView's frame to \(NSStringFromCGRect(frame))")
+        print("Setting the WebView's frame to \(NSCoder.string(for: frame))")
         webView.frame = frame
     }
     
@@ -276,7 +276,7 @@ class InAppBrowserWebViewController: UIViewController, UIScrollViewDelegate, WKU
         DispatchQueue.main.async(execute: {() -> Void in
             if (weakSelf?.responds(to: #selector(getter: self.presentingViewController)))! {
                 weakSelf?.presentingViewController?.dismiss(animated: true, completion: {() -> Void in
-                    self.tmpWindow?.windowLevel = 0.0
+                    self.tmpWindow?.windowLevel = UIWindow.Level(rawValue: 0.0)
                     UIApplication.shared.delegate?.window??.makeKeyAndVisible()
                     if (self.navigationDelegate != nil) {
                         self.navigationDelegate?.browserExit(uuid: self.uuid)
@@ -285,7 +285,7 @@ class InAppBrowserWebViewController: UIViewController, UIScrollViewDelegate, WKU
             }
             else {
                 weakSelf?.parent?.dismiss(animated: true, completion: {() -> Void in
-                    self.tmpWindow?.windowLevel = 0.0
+                    self.tmpWindow?.windowLevel = UIWindow.Level(rawValue: 0.0)
                     UIApplication.shared.delegate?.window??.makeKeyAndVisible()
                     if (self.navigationDelegate != nil) {
                         self.navigationDelegate?.browserExit(uuid: self.uuid)

ios/Classes/InAppWebView.swift

@@ -240,7 +240,7 @@ public class InAppWebView: WKWebView, UIScrollViewDelegate, WKUIDelegate, WKNavi
             takeSnapshot(with: nil, completionHandler: {(image, error) -> Void in
                 var imageData: Data? = nil
                 if let screenshot = image {
-                    imageData = UIImagePNGRepresentation(screenshot)!
+                    imageData = screenshot.pngData()!
                 }
                 completionHandler(imageData)
             })

ios/Classes/SafariViewController.swift

@@ -43,7 +43,7 @@ class SafariViewController: SFSafariViewController, SFSafariViewControllerDelega
         dismiss(animated: true)
         
         DispatchQueue.main.asyncAfter(deadline: .now() + .milliseconds(400), execute: {() -> Void in
-            self.tmpWindow?.windowLevel = 0.0
+            self.tmpWindow?.windowLevel = UIWindow.Level(rawValue: 0.0)
             UIApplication.shared.delegate?.window??.makeKeyAndVisible()
             
             if (self.statusDelegate != nil) {

ios/Classes/SwiftFlutterPlugin.swift

@@ -350,7 +350,7 @@ public class SwiftFlutterPlugin: NSObject, FlutterPlugin {
         let tmpController = UIViewController()
         let baseWindowLevel = UIApplication.shared.keyWindow?.windowLevel
         self.tmpWindow?.rootViewController = tmpController
-        self.tmpWindow?.windowLevel = UIWindowLevel(baseWindowLevel! + 1)
+        self.tmpWindow?.windowLevel = UIWindow.Level(baseWindowLevel!.rawValue + 1)
         self.tmpWindow?.makeKeyAndVisible()
         
         let browserOptions: InAppBrowserOptions
@@ -435,7 +435,7 @@ public class SwiftFlutterPlugin: NSObject, FlutterPlugin {
 //                UIApplication.shared.statusBarStyle = UIStatusBarStyle(rawValue: self.previousStatusBarStyle)!
 //            }
             webViewController.presentingViewController?.dismiss(animated: false, completion: {() -> Void in
-                self.tmpWindow?.windowLevel = 0.0
+                self.tmpWindow?.windowLevel = UIWindow.Level(rawValue: 0.0)
                 UIApplication.shared.delegate?.window??.makeKeyAndVisible()
             })
         }
@@ -466,7 +466,7 @@ public class SwiftFlutterPlugin: NSObject, FlutterPlugin {
         let tmpController = UIViewController()
         let baseWindowLevel = UIApplication.shared.keyWindow?.windowLevel
         self.tmpWindow?.rootViewController = tmpController
-        self.tmpWindow?.windowLevel = UIWindowLevel(baseWindowLevel! + 1)
+        self.tmpWindow?.windowLevel = UIWindow.Level(baseWindowLevel!.rawValue + 1)
         self.tmpWindow?.makeKeyAndVisible()
         
         let browserOptions: InAppBrowserOptions
@@ -499,7 +499,7 @@ public class SwiftFlutterPlugin: NSObject, FlutterPlugin {
                 webViewController.webView.loadData(data: data, mimeType: mimeType, encoding: encoding, baseUrl: baseUrl)
             })
             webViewController.presentingViewController?.dismiss(animated: false, completion: {() -> Void in
-                self.tmpWindow?.windowLevel = 0.0
+                self.tmpWindow?.windowLevel = UIWindow.Level(rawValue: 0.0)
                 UIApplication.shared.delegate?.window??.makeKeyAndVisible()
             })
         }
@@ -518,7 +518,7 @@ public class SwiftFlutterPlugin: NSObject, FlutterPlugin {
         }
         else {
             if #available(iOS 10.0, *) {
-                UIApplication.shared.open(url, options: [:], completionHandler: nil)
+                UIApplication.shared.open(url, options: convertToUIApplicationOpenExternalURLOptionsKeyDictionary([:]), completionHandler: nil)
             } else {
                 UIApplication.shared.openURL(url)
             }
@@ -536,7 +536,7 @@ public class SwiftFlutterPlugin: NSObject, FlutterPlugin {
                 DispatchQueue.main.async(execute: {() -> Void in
                     if webViewController != nil {
                         let baseWindowLevel = UIApplication.shared.keyWindow?.windowLevel
-                        self.tmpWindow?.windowLevel = UIWindowLevel(baseWindowLevel! + 1)
+                        self.tmpWindow?.windowLevel = UIWindow.Level(baseWindowLevel!.rawValue + 1)
                         self.tmpWindow?.makeKeyAndVisible()
                         UIApplication.shared.delegate?.window??.makeKeyAndVisible()
                         self.tmpWindow?.rootViewController?.present(webViewController!, animated: true, completion: nil)
@@ -558,7 +558,7 @@ public class SwiftFlutterPlugin: NSObject, FlutterPlugin {
                 DispatchQueue.main.async(execute: {() -> Void in
                     if webViewController != nil {
                         webViewController?.presentingViewController?.dismiss(animated: true, completion: {() -> Void in
-                            self.tmpWindow?.windowLevel = 0.0
+                            self.tmpWindow?.windowLevel = UIWindow.Level(rawValue: 0.0)
                             UIApplication.shared.delegate?.window??.makeKeyAndVisible()
                             if self.previousStatusBarStyle != -1 {
                                 UIApplication.shared.statusBarStyle = UIStatusBarStyle(rawValue: self.previousStatusBarStyle)!
@@ -749,3 +749,8 @@ public class SwiftFlutterPlugin: NSObject, FlutterPlugin {
     }
     
 }
+
+// Helper function inserted by Swift 4.2 migrator.
+fileprivate func convertToUIApplicationOpenExternalURLOptionsKeyDictionary(_ input: [String: Any]) -> [UIApplication.OpenExternalURLOptionsKey: Any] {
+	return Dictionary(uniqueKeysWithValues: input.map { key, value in (UIApplication.OpenExternalURLOptionsKey(rawValue: key), value)})
+}