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BreastFeedingDemo/ViewController.swift

@@ -16,7 +16,6 @@ class ViewController: UIViewController {
     override func viewDidLoad() {
         super.viewDidLoad()
 
-        // Make a button to call the showFluttaaer function when pressed.
         let button = UIButton(type: UIButton.ButtonType.custom)
         button.addTarget(self, action: #selector(showFlutter), for: .touchUpInside)
         button.setTitle("Show Flutter!", for: UIControl.State.normal)
@@ -34,7 +33,7 @@ class ViewController: UIViewController {
                         case "init":
                             result(self?.dicValueString(self!.getData()))
                         case "teachingEnd":
-                        strongSelf.navigationController?.popViewController(animated: true)
+                            strongSelf.presentedViewController?.dismiss(animated: true)
                         default:
                             // Unrecognized method name
                             print("Unrecognized method name: \(call.method)")