app .xaml cs in net 9

Question

Hi,

How to convert this code in maui net 9.

using Autofac;

using GssdDesktopClient.API.Imp;

using GssdDesktopClient.Maui.Helpers;

using GssdDesktopClient.Maui.Pages;

using GssdDesktopClient.Maui.Startup;

using Microsoft.Maui.Controls.PlatformConfiguration;

using System.Net.Http;

using System.Net.Http.Headers;

using System.Reflection;

using System.Runtime.ExceptionServices;

using System.Text;

namespace GssdDesktopClient.Maui

{
public partial class App : Application

 {

private static Mutex mutex = new Mutex(true, Assembly.GetEntryAssembly().GetName().Name);

public App()

 {

   if (!mutex.WaitOne(TimeSpan.Zero, true))

{

Current.Quit();

Environment.Exit(0);

 }

InitializeComponent();

AppDomain currentDomain = AppDomain.CurrentDomain;

currentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException);

MainPage = new LoginPage();

 }

private async void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)

 {

try

 {

if (!string.IsNullOrEmpty(LoginConfigurations.GetInstance().SessionToken))

 {

var container = new Bootstrapper().Bootstrap();

IAutomationApiClient automationApiClient = container.Resolve<IAutomationApiClient>();

var res = await automationApiClient.PostLogOut($"{LoginConfigurations.GetInstance().Portal}/api/GSPortal/PostLogOut/false", LoginConfigurations.GetInstance().SessionToken);

 }

 }

catch (Exception ex)

{

 }

  }

protected override Window CreateWindow(IActivationState activationState)

 {

Window window = base.CreateWindow(activationState);

try

 {

window.Stopped += async(s,e) =>

 {

if (!string.IsNullOrEmpty(LoginConfigurations.GetInstance().SessionToken ))
 {

var container = new Bootstrapper().Bootstrap();

IAutomationApiClient automationApiClient = container.Resolve<IAutomationApiClient>();

var results = await automationApiClient.PostLogOut($"{LoginConfigurations.GetInstance().Portal}/api/GSPortal/PostLogOut/false", LoginConfigurations.GetInstance().SessionToken);

if(results)

 {
App.Current.Quit();

 }

 }

 };

 }
catch (Exception)

 {

 }

return window;

 }

 }

}

Answer 1

this code looks like it uses a global mutex to allow only one instance of the app. uses an injected object to log application main window open close, and uncaught errors.

you will need to design a solution for each O/S. while the global mutex will work on linux and MacOs, it will be buggy (false detection of running app) due to the mutex implementation code. not needed for mobile O/S.

the Maui lifecycle events match the mobile o/s where apps are visible or not visible, background, active, or stopped.