Maui 显示当前时间

1、MainPage.xaml.cs 代码

using System.Threading;

namespace Mauitime
{
    public partial class MainPage : ContentPage
    {
        private Timer _timer;

        public MainPage()
        {
            InitializeComponent();
            _timer = new Timer(_ => UpdateCurrentTime(), null, 0, 1000);

        }

        // 在页面显示时更新当前时间
        protected override void OnAppearing()
        {
            base.OnAppearing();
        }

        protected override void OnDisappearing()
        {
            base.OnDisappearing();
            _timer?.Dispose(); // 确保计时器在页面消失时被释放
        }

        // 更新当前时间
        void UpdateCurrentTime()
        {
            // 使用 MainThread 更新 UI
            MainThread.BeginInvokeOnMainThread(() =>
            {
                currentTimeLabel.Text = DateTime.Now.ToString("HH:mm:ss");
            });
       }
    }
}

 2、MainPage.xaml代码

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="Mauitime.MainPage">

    <StackLayout Padding="20">
        <Label Text="当前时间:" FontSize="20" />
        <Label x:Name="currentTimeLabel" FontSize="24" />
    </StackLayout>

</ContentPage>

3、显示效果

 

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转载自blog.csdn.net/hb_ljj/article/details/137808173