Merge pull request #150 from theLee3/fix-game-center-sign-in-hanging

Add signInFailed check to prevent hanging on hot reload.

games_services/darwin/Classes/Auth.swift

@@ -5,11 +5,26 @@ import FlutterMacOS
 #endif
 
 class Auth: BaseGamesServices {
+
+  // track if previous sign in was cancelled (failed) for debugging
+  // this prevents hanging on `signIn` when hot reloading
+  #if DEBUG
+    var debugSignInFailed = false
+  #endif
 
   func authenticateUser(result: @escaping FlutterResult) {
+    #if DEBUG
+      if (self.debugSignInFailed) {
+        result(PluginError.failedToAuthenticate.flutterError())
+        return
+      }
+    #endif
     currentPlayer.authenticateHandler = { vc, error in
       guard error == nil else {
-        result(error?.flutterError(code: .failedToAuthenticate))
+        #if DEBUG
+          self.debugSignInFailed = true
+        #endif
+        result(error!.flutterError(code: .failedToAuthenticate))
         return
       }
       if let vc = vc {

games_services/pubspec.yaml

@@ -1,6 +1,6 @@
 name: games_services
 description: A new Flutter plugin to support game center and google play games services.
-version: 4.0.0
+version: 4.0.1
 homepage: https://github.com/Abedalkareem/games_services
 repository: https://github.com/Abedalkareem/games_services
 issue_tracker: https://github.com/Abedalkareem/games_services/issues