prs/prs.mobile.new/PRS.Mobile.iOS/AppDelegate.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Foundation;
using InABox.Mobile.iOS;
using Plugin.LocalNotification.Platforms;
using Syncfusion.XForms.iOS.TreeView;
using Syncfusion.XForms.Pickers.iOS;
using UIKit;
using UserNotifications;
using Xamarin.Forms;

namespace PRS.Mobile.iOS
{
    // The UIApplicationDelegate for the application. This class is responsible for launching the 
    // User Interface of the application, as well as listening (and optionally responding) to 
    // application events from iOS.
    [Register("AppDelegate")]
    public partial class AppDelegate : global::Xamarin.Forms.Platform.iOS.FormsApplicationDelegate
    {
        //
        // This method is invoked when the application has loaded and is ready to run. In this 
        // method you should instantiate the window, load the UI into it and then make the window
        // visible.
        //
        // You have 17 seconds to return from this method, or iOS will terminate your application.
        //
        public override bool FinishedLaunching(UIApplication app, NSDictionary options)
        {
            
            AppDomain.CurrentDomain.UnhandledException += CurrentDomainOnUnhandledException;
            TaskScheduler.UnobservedTaskException += TaskSchedulerOnUnobservedTaskException;            

            DependencyService.Register<Version_iOS>();
            
            global::Xamarin.Forms.Forms.Init();
            
            // https://github.com/Baseflow/XF-Material-Library
            XF.Material.iOS.Material.Init();
            
            // https://github.com/Redth/ZXing.Net.Mobile/tree/master
            ZXing.Net.Mobile.Forms.iOS.Platform.Init();

            // https://learn.microsoft.com/en-au/xamarin/essentials/get-started?tabs=windows%2Cios
            //Xamarin.Essentials.Platform.Init( () => provide your own сurrent UIViewController provider);

            MobileLogging.Log("Start of AppDelegate");

            Syncfusion.XForms.iOS.PopupLayout.SfPopupLayoutRenderer.Init();
            Syncfusion.SfPdfViewer.XForms.iOS.SfPdfDocumentViewRenderer.Init();
            Syncfusion.SfRangeSlider.XForms.iOS.SfRangeSliderRenderer.Init();
            Syncfusion.SfImageEditor.XForms.iOS.SfImageEditorRenderer.Init();
            Syncfusion.SfDataGrid.XForms.iOS.SfDataGridRenderer.Init();
            Syncfusion.XForms.iOS.RichTextEditor.SfRichTextEditorRenderer.Init();
            Syncfusion.SfMaps.XForms.iOS.SfMapsRenderer.Init();
            Syncfusion.XForms.iOS.MaskedEdit.SfMaskedEditRenderer.Init();
            SfTreeViewRenderer.Init();
            Syncfusion.SfSchedule.XForms.iOS.SfScheduleRenderer.Init();
            new Syncfusion.SfSchedule.XForms.iOS.SfScheduleRenderer();
            Syncfusion.XForms.iOS.SignaturePad.SfSignaturePadRenderer.Init();
            Syncfusion.XForms.iOS.TabView.SfTabViewRenderer.Init();
            SfTimePickerRenderer.Init();


            Xamarin.IQKeyboardManager.SharedManager.Enable = true;
            

            if (UIDevice.CurrentDevice.CheckSystemVersion(10, 0))
            {
                // Request notification permissions from the user
                UNUserNotificationCenter.Current.RequestAuthorization(UNAuthorizationOptions.Alert, (approved, err) =>
                {
                    // Handle approval
                });
            }

            UNUserNotificationCenter.Current.Delegate = new UserNotificationCenterDelegate();

            if (UIDevice.CurrentDevice.CheckSystemVersion(8, 0))
            {
                var notificationSettings = UIUserNotificationSettings.GetSettingsForTypes(
                    UIUserNotificationType.Alert | UIUserNotificationType.Badge | UIUserNotificationType.Sound, null
                );

                app.RegisterUserNotificationSettings(notificationSettings);
            }
            // check for a notification


            // check for a local notification
            if (options?.ContainsKey(UIApplication.LaunchOptionsLocalNotificationKey) == true)
            {
                var localNotification =
                    options[UIApplication.LaunchOptionsLocalNotificationKey] as UILocalNotification;
                if (localNotification != null)
                {
                    UIAlertController okayAlertController = UIAlertController.Create(localNotification.AlertAction,
                        localNotification.AlertBody, UIAlertControllerStyle.Alert);
                    okayAlertController.AddAction(UIAlertAction.Create("OK", UIAlertActionStyle.Default, null));

                    Window.RootViewController.PresentViewController(okayAlertController, true, null);

                    // reset our badge
                    UIApplication.SharedApplication.ApplicationIconBadgeNumber = 0;
                }
            }

            LoadApplication(new App());

            return base.FinishedLaunching(app, options);
        }
        
        
        public override void ReceivedLocalNotification(UIApplication application, UILocalNotification notification)
        {
            // show an alert
            UIAlertController okayAlertController = UIAlertController.Create(notification.AlertAction,
                notification.AlertBody, UIAlertControllerStyle.Alert);
            okayAlertController.AddAction(UIAlertAction.Create("OK", UIAlertActionStyle.Default, null));

            UIApplication.SharedApplication.KeyWindow.RootViewController.PresentViewController(okayAlertController,
                true, null);

            // reset our badge
            UIApplication.SharedApplication.ApplicationIconBadgeNumber = 0;
        }

        public override bool OpenUrl(UIApplication app, NSUrl url, NSDictionary options)
        {
            
            App.LaunchParameters = url.AbsoluteString.Remove(0, 17);
            LoadApplication(new App());

            return true;
        }
        
        #region Error handling

        private static void TaskSchedulerOnUnobservedTaskException(object sender, UnobservedTaskExceptionEventArgs args)
        {
            LogUnhandledException("TaskScheduler", args.Exception?.GetType(), args.Exception);
        }

        private static void CurrentDomainOnUnhandledException(object sender, UnhandledExceptionEventArgs args)
        {
            LogUnhandledException("CurrentDomain", args.ExceptionObject?.GetType(), args.ExceptionObject);
        }

        private static void LogUnhandledException(String source, Type type, object exceptionobject)
        {
            if (exceptionobject is Exception exception)
                MobileLogging.Log(exception, source);
            else
                MobileLogging.Log($"{source}: {type?.Name ?? "NULL"} -> {exceptionobject}");
        }

        #endregion

    }
}