async void OnSubmitButtonClicked(object sender, EventArgs e)
        {
            if (adminAuth.Username == null)
            {
                Console.WriteLine("No username");
            }
            else
            {
                Console.WriteLine("Test Username:"******"TEST Password:"******"No PASSWORD");
            }

            if (adminAuth.Username != null && adminAuth.Password != null)
            {
                activityIndicator.IsVisible = true;
                activityIndicator.IsRunning = true;

                string httpTask = await Task.Run <string>(() => HttpRequestHandler.PostAddAnnouncement(adminAuth.Username, adminAuth.Password, titleInput.Text, contentInput.Text));

                string httpResult = httpTask.ToString();

                activityIndicator.IsVisible = false;
                activityIndicator.IsRunning = false;
                if (httpResult == "You have succesfully posted your announcement!")
                {
                    await DisplayAlert("Success", "Announcement has been successfully posted!", "OK");

                    var page             = App.Current.MainPage as rootPage;
                    var announcementPage = new announcementPage();
                    page.changePage(announcementPage);
                }
                else
                {
                    await DisplayAlert("Failed", httpResult, "OK");
                }
            }
            else
            {
                Console.WriteLine("User is not logged in");
            }
        }