Support swift language

README.md

@@ -6,12 +6,81 @@ Flutter Socket IO Plugin, supported Android + iOS (iOS installation guide is com
 
 - 1. Copy the folder `example/ios/Runner/SocketObj` to `${PROJECT_ROOT}/ios/Runner/`
 
-- 2. Replace the `example/ios/Runner/AppDelegate.m` line with `${PROJECT_ROOT}/ios/Runner/AppDelegate.m`. 
+- 2. [If your app's iOs development language is Objective-C] Replace the `example/ios/Runner/AppDelegate.m` line with `${PROJECT_ROOT}/ios/Runner/AppDelegate.m`. 
 (Notice: **You should merge the old one in your project to merge with the new from this plugin if you have some change on that file**)
 
-- 3. Open `${PROJECT_ROOT}/ios/Podfile`, paste this line `pod 'Socket.IO-Client-Swift', '~> 13.3.0'` before the end of `target 'Runner' do` block
-
-- 4. Run and Enjoy the plugin :)
+- 3. [If your app's iOs development language is Swift] Add these lines in `${PROJECT_ROOT}/ios/Runner/AppDelegate.swift` AFTER `GeneratedPluginRegistrant.register(with: self)`
+~~~
+let socketChannel = FlutterMethodChannel(name: "flutter_socket_io", binaryMessenger: controller.binaryMessenger)
+    socketChannel.setMethodCallHandler { (call, result) in
+        guard let dict = call.arguments as? NSDictionary,
+            let socketNameSpace = dict[SOCKET_NAME_SPACE] as? String,
+            let socketDomain = dict[SOCKET_DOMAIN] as? String
+        else {
+            result(FlutterError(code: "ERROR", message: "Argument is wrong", details: nil));
+            return
+        }
+
+        switch call.method {
+        case SOCKET_INIT:
+            let query = dict[SOCKET_QUERY] as? String
+            let callback = dict[SOCKET_CALLBACK] as? String
+            var queryStringDictionary = [String: String]()
+            query?.components(separatedBy: "&")
+                .forEach { pair in
+                    let components = pair.components(separatedBy: "=")
+                    guard let key = components.first,
+                        let value = components.last else {
+                            return
+                    }
+                    queryStringDictionary[key] = value
+                }
+            SocketIOManager.shared()?.initSocket(socketChannel, domain: socketDomain, query: queryStringDictionary, namspace: socketNameSpace, callBackStatus: callback)
+        case SOCKET_CONNECT:
+            SocketIOManager.shared()?.connectSocket(socketDomain, namspace: socketNameSpace)
+        case SOCKET_DISCONNECT:
+            SocketIOManager.shared()?.disconnectDomain(socketDomain, namspace: socketNameSpace)
+        case SOCKET_SUBSCRIBES:
+            guard let data = (dict[SOCKET_DATA] as? String)?.data(using: .utf8),
+                let json = try? JSONSerialization.jsonObject(with: data, options: []) as? NSMutableDictionary
+            else {
+                result(FlutterError(code: "ERROR", message: "Data is wrong", details: nil));
+                return
+            }
+            SocketIOManager.shared()?.subscribes(socketDomain, namspace: socketNameSpace, subscribes: json)
+        case SOCKET_UNSUBSCRIBES:
+            guard let data = (dict[SOCKET_DATA] as? String)?.data(using: .utf8),
+                let json = try? JSONSerialization.jsonObject(with: data, options: []) as? NSMutableDictionary
+            else {
+                result(FlutterError(code: "ERROR", message: "Data is wrong", details: nil));
+                return
+            }
+            SocketIOManager.shared()?.unSubscribes(socketDomain, namspace: socketNameSpace, subscribes: json)
+        case SOCKET_UNSUBSCRIBES_ALL:
+            SocketIOManager.shared()?.unSubscribesAll(socketDomain, namspace: socketNameSpace)
+        case SOCKET_SEND_MESSAGE:
+            guard let event = dict[SOCKET_EVENT] as? String,
+                let message = dict[SOCKET_MESSAGE] as? String,
+                let callback = dict[SOCKET_CALLBACK] as? String
+            else {
+                result(FlutterError(code: "ERROR", message: "Event or message is wrong", details: nil));
+                return
+            }
+
+            SocketIOManager.shared()?.sendMessage(event, message: message, domain: socketDomain, namspace: socketNameSpace, callBackStatus: callback)
+        case SOCKET_DESTROY:
+            SocketIOManager.shared()?.destroySocketDomain(socketDomain, namspace: socketNameSpace)
+        case SOCKET_DESTROY_ALL:
+            SocketIOManager.shared()?.destroyAllSocket()
+        default:
+            result(FlutterMethodNotImplemented)
+        }
+    }
+~~~
+
+- 4. Open `${PROJECT_ROOT}/ios/Podfile`, paste this line `pod 'Socket.IO-Client-Swift', '~> 13.3.0'` before the end of `target 'Runner' do` block
+
+- 5. Run and Enjoy the plugin :)
 
 
 ## Use the plugin