public App(string pushNotifParam = null) { PushNotifParameter = pushNotifParam; currentApp = this; InitializeComponent(); // Load the FileAcces for secure Data Storage FileManager = DependencyService.Get <IFileManager>(); NotificationEventReceiver = DependencyService.Get <INotificationEventReceiver>(); var passwordManager = DependencyService.Get <IPasswordManager>(); // loads the password from the platform dependent key manager var password = passwordManager.GetPassword(); if (password == null) { // the first time we have to create a new password and save it. password = Encrypter.CreatePassword(); passwordManager.SavePassword(password); } // With the initialized Password we can create the Encrypter, which is needed for any ViewModels access to data. Encrypter = new Encrypter(password); ViewModelSettings = new ViewModel.ViewModelSettings(); // The Midata-Access is loging in right at the beginning so it is always available (until the Timeout) Midata = new MidataLogin(); Midata.Login(); //BodyWeight bw = new BodyWeight("85", DateTime.Now); //midataAccess.SaveWeight(bw); // Main Navigation for the whole app which works with a NavigationStack. if (ViewModelSettings.newSettings) { if (PushNotifParameter == null) { ((NavigationPage)MainPage).PushAsync(new View.Settings()); } } }