Question

我试图从按钮事件处理程序中播放声音：

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices.WindowsRuntime;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;

// The Blank Page item template is documented at https://go.microsoft.com/fwlink/?LinkId=402352&clcid=0x409

namespace App1
{
    /// <summary>
    /// An empty page that can be used on its own or navigated to within a Frame.
    /// </summary>
    public sealed partial class MainPage : Page
    {
        public MainPage()
        {
            this.InitializeComponent();
        }

        private void mainButton_Click_1(object sender, RoutedEventArgs e)
        {
            System.Media.SoundPlayer player = new System.Media.SoundPlayer(@"c:\mywavfile.wav");
            player.Play();
        }
    }
}

但我收到的错误是类型或命名空间＆＃34; media＆＃34;在名称空间＆＃34; system＆＃34;中不存在。什么似乎是问题？

我正在使用Visual Studio 2017，并且我已经创建了一个通用的Windows c＃blank应用程序。

编辑：

我已将代码更改为此但我还没有收到任何音频播放。

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices.WindowsRuntime;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;

// The Blank Page item template is documented at https://go.microsoft.com/fwlink/?LinkId=402352&clcid=0x409

namespace App1
{
    /// <summary>
    /// An empty page that can be used on its own or navigated to within a Frame.
    /// </summary>
    public sealed partial class MainPage : Page
    {
        public MainPage()
        {
            this.InitializeComponent();
        }

        private void mainButton_Click_1(object sender, RoutedEventArgs e)
        {
            MediaElement PlayMusic = new MediaElement();
            PlayMusic.AudioCategory = Windows.UI.Xaml.Media.AudioCategory.Media;
            PlayMusic.Source = new Uri(@"D:/Downloads/sounds.mp3");
            PlayMusic.Play();
        }
    }
}

我尝试添加背景声明以允许背景音频，但仍无济于事。

Answer 1

您正在使用.Net Core和System.Media位于.Net Framework中。

在.Net Core中，您可以使用Windows.UI.Xaml.Controls.MediaElement。或者，您可以使用Windows.Media.Audio.AudioGraph。

按C＃按下按钮

1 个答案: