C# WINDOWS MAUI專案 Popup & Thread整合應用

GITHUB: https://github.com/jash-git/MAUI_WinAPI_Object_test/tree/main/Code/14

test_PopupPage.xaml code:

<?xml version="1.0" encoding="utf-8" ?>
<mct:Popup xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:mct="clr-namespace:CommunityToolkit.Maui.Views;assembly=CommunityToolkit.Maui"             
             x:Class="VPOS.Views.test_PopupPage"
             CanBeDismissedByTappingOutsideOfPopup="False" Color="#0BE3FA">

    <VerticalStackLayout        
        BackgroundColor="Transparent"
        VerticalOptions="Center" 
        HorizontalOptions="Center">
        <Label
            x:Name="labtime"
            Text="test_PopupPage"
            VerticalOptions="Center" 
            HorizontalOptions="Center" />
        <ActivityIndicator Color="{StaticResource Primary}"
                               IsRunning="True" HeightRequest="100" WidthRequest="100"
                               IsVisible="True" />        
        <Button 
                x:Name="CloseBtn"
                Text="Close App" 
                Clicked="CloseBtn_Clicked"
                HorizontalOptions="Center" ClassId="" />        
    </VerticalStackLayout>
</mct:Popup>

test_PopupPage.xaml.cs code:

using CommunityToolkit.Maui.Views;

namespace VPOS.Views;

public partial class test_PopupPage : Popup//: ContentPage
{
    public static String m_StrResult;
    public Thread thread;
    public bool blnStop = false;

    private void ThreadStopClear()
    {
        if (thread != null)
        {
            blnStop = true;
            thread = null;
        }
    }
    [Obsolete]
    private void ThreadFun()
    {
        int intCount = 0;
        do
        {
            // 更新使用者介面 (UI) 元素
            Device.BeginInvokeOnMainThread(() =>
            {
                // 在這裡更新 UI 控制項
                labtime.Text = DateTime.Now.ToString("HH:mm:ss");
            });

            intCount++;
            Thread.Sleep(1000);
            if(intCount>=3)
            {
                blnStop = true;
            }
        } while (!blnStop);

        m_StrResult = "CloseBtn_Clicked";
        ThreadStopClear();

        // 更新使用者介面 (UI) 元素
        Device.BeginInvokeOnMainThread(() =>
        {
            // 在這裡更新 UI 控制項
            Close();
        });

    }
    public test_PopupPage()
    {
        InitializeComponent();
        m_StrResult = "";
        //Size = new Size(500, 500);//設定UI大小
        
        //---
        //建立執行序
        thread = new Thread(ThreadFun);
        thread.Start();
        //---建立執行序
    }

    private void CloseBtn_Clicked(object sender, EventArgs e)
    {
        m_StrResult = "CloseBtn_Clicked";
        ThreadStopClear();
        Close();
    }
}