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.NET MAUI教程2-利用.NET CommunityToolkit.Maui框架弹Toast

news 来源：原创 2025/6/20 12:14:41

在上一篇博文的基础上继续操作：

.NET MAUI教程1-入门并发布apk包安装到真机-CSDN博客

本文内容参考：

Toast - .NET MAUI Community Toolkit - Community Toolkits for .NET | Microsoft Learn

1 在NuGet包管理器中安装

MAUI Community Toolkit，版本选择9.1.1，如下图：

2 在MauiProgram.cs中新增builder.UseMauiCommunityToolkit();

完整代码如下：

using CommunityToolkit.Maui;
using Microsoft.Extensions.Logging;

namespace MauiDemo2
{
    public static class MauiProgram
    {
        public static MauiApp CreateMauiApp()
        {
            var builder = MauiApp.CreateBuilder();
            builder
                .UseMauiApp<App>()
                .ConfigureFonts(fonts =>
                {
                    fonts.AddFont("OpenSans-Regular.ttf", "OpenSansRegular");
                    fonts.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold");
                });

#if DEBUG
    		builder.Logging.AddDebug();
#endif
            builder.UseMauiCommunityToolkit();

            return builder.Build();
        }
    }
}

3 在MainPage.xaml.cs中新增代码：

private void ToastClicked(object sender, EventArgs e)
{
    CancellationTokenSource cancellationTokenSource = new CancellationTokenSource();

    string text = "弹出Toast";
    ToastDuration duration = ToastDuration.Short;
    double fontSize = 14;

    var toast = Toast.Make(text, duration, fontSize);

    toast.Show(cancellationTokenSource.Token);
}

完整代码如下：

using CommunityToolkit.Maui.Core;
using CommunityToolkit.Maui.Alerts;
namespace MauiDemo2
{
    public partial class MainPage : ContentPage
    {
        int count = 0;

        public MainPage()
        {
            InitializeComponent();
        }

        private void ToastClicked(object sender, EventArgs e)
        {
            CancellationTokenSource cancellationTokenSource = new CancellationTokenSource();

            string text = "弹出Toast";
            ToastDuration duration = ToastDuration.Short;
            double fontSize = 14;

            var toast = Toast.Make(text, duration, fontSize);

            toast.Show(cancellationTokenSource.Token);
        }
    }

}

4 在MainPage.xaml编辑如下：

<?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="MauiDemo2.MainPage">

    <ScrollView>
        <VerticalStackLayout
            Padding="30,0"
            Spacing="25">
            <Button
                x:Name="ToastBtn"
                Text="弹Toast"
                Clicked="ToastClicked"
                HorizontalOptions="Fill" />
        </VerticalStackLayout>
    </ScrollView>

</ContentPage>

5 在android模拟器中运行效果如下图：