Register close button in mac

Question

Hi,

In window i did, how to do it in mac ?

        builder

            .UseMauiApp<App>()

            .ConfigureLifecycleEvents(events =>

            {

#if WINDOWS

events.AddWindows(windowsLifecycleBuilder =>

{

windowsLifecycleBuilder.OnWindowCreated(window =>

{        

    var handle = WinRT.Interop.WindowNative.GetWindowHandle(window);

    var id = Microsoft.UI.Win32Interop.GetWindowIdFromWindow(handle);

    var appWindow = Microsoft.UI.Windowing.AppWindow.GetFromWindowId(id);      

    appWindow.Closing += async (s, e) =>

    {

            e.Cancel = true;

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

            {

                App.Current.Quit();

                return;

            }

            bool answer = await Application.Current.MainPage.DisplayAlert("Close the application?", "Are you sure you want to close the application?", "Yes", "No",FlowDirection.LeftToRight);

           if(answer) 

           {

       

           

               

       

                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)

                {

                }

                 App.Current.Quit();

            }

               

       

    };

});

});

#endif

Answer 1

Hello,

Firstly, please enable multi-window support on iPadOS and Mac Catalyst by iPadOS and macOS configuration.

Then open App.xaml.cs create a window and rewrite the Backgrounding event. After getting value of res, your application will be closed in the background.

// in the App class
protected override Window CreateWindow(IActivationState? activationState)
    {
		Window window = base.CreateWindow(activationState);
        window.Backgrounding += Window_Backgrounding;
      
		return window;
    }
 
    private async void Window_Backgrounding(object? sender, BackgroundingEventArgs 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).ContinueWith(t => {

// if you get the result. then your application will be quit.
           App.Current.Quit();

       }); 


                    }

                 }

                catch (Exception)

                {

                }
    }

Best Regards,

Leon Lu

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