Add another example of using AuthRequestBuilderProtocol to iOS example

(Swift) so that there are examples of the old, deprecated method, as
well as the newly added one

Author: hamchapman

iOS Example Swift/iOS Example Swift/ViewController.swift

@@ -25,15 +25,21 @@ class ViewController: UIViewController, PusherDelegate {
 
         // Only use your secret here for testing or if you're sure that there's
         // no security risk
-        let pusherClientOptions = PusherClientOptions(authMethod: .inline(secret: "YOUR_APP_SECRET"))
-        pusher = Pusher(key: "YOUR_APP_KEY", options: pusherClientOptions)
+//        let pusherClientOptions = PusherClientOptions(authMethod: .inline(secret: "YOUR_APP_SECRET"))
+//        pusher = Pusher(key: "YOUR_APP_KEY", options: pusherClientOptions)
 
-        // Use this if you want to try out your auth endpoint
+//        // Use this if you want to try out your auth endpoint
 //        let optionsWithEndpoint = PusherClientOptions(
 //            authMethod: AuthMethod.authRequestBuilder(authRequestBuilder: AuthRequestBuilder())
 //        )
 //        pusher = Pusher(key: "YOUR_APP_KEY", options: optionsWithEndpoint)
 
+        // Use this if you want to try out your auth endpoint (deprecated method)
+        let optionsWithEndpoint = PusherClientOptions(
+            authMethod: AuthMethod.authRequestBuilder(authRequestBuilder: AuthRequestBuilderOld())
+        )
+        pusher = Pusher(key: "YOUR_APP_KEY", options: optionsWithEndpoint)
+
         pusher.delegate = self
 
         pusher.connect()
@@ -83,11 +89,20 @@ class ViewController: UIViewController, PusherDelegate {
     }
 }
 
+class AuthRequestBuilderOld: AuthRequestBuilderProtocol {
+    func requestFor(socketID: String, channel: PusherChannel) -> NSMutableURLRequest? {
+        let request = NSMutableURLRequest(url: URL(string: "http://localhost:9292/pusher/auth")!)
+        request.httpMethod = "POST"
+        request.httpBody = "socket_id=\(socketID)&channel_name=\(channel.name)".data(using: String.Encoding.utf8)
+        return request
+    }
+}
+
 class AuthRequestBuilder: AuthRequestBuilderProtocol {
-    func requestFor(socketID: String, channel: PusherChannel) -> URLRequest? {
+    func requestFor(socketID: String, channelName: String) -> URLRequest? {
         var request = URLRequest(url: URL(string: "http://localhost:9292/pusher/auth")!)
         request.httpMethod = "POST"
-        request.httpBody = "socket_id=\(socketID)&channel_name=\(channel.name)".data(using: String.Encoding.utf8)
+        request.httpBody = "socket_id=\(socketID)&channel_name=\(channelName)".data(using: String.Encoding.utf8)
         return request
     }
 }