uwp 中的音频开发

xml code
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<UserControl x:Class="WinTest.HPControl.ReminderTimer"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:WinTest.HPControl"
             mc:Ignorable="d" Height="158.036" Width="417.35">
    <Grid>
        <Border  BorderBrush="White"  Background="White" CornerRadius="20" >
            <Grid Background="Transparent" Width="300">
                <Grid.RowDefinitions>
                    <RowDefinition></RowDefinition>
                    <RowDefinition></RowDefinition>
                    <RowDefinition></RowDefinition>
                    <RowDefinition></RowDefinition>
                </Grid.RowDefinitions>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="80"></ColumnDefinition>
                    <ColumnDefinition Width="10"></ColumnDefinition>
                    <ColumnDefinition Width="*"></ColumnDefinition>
                </Grid.ColumnDefinitions>
                <Button Background="Transparent"  Grid.Row="0" Grid.RowSpan="3" Click="Button_Click" >
                    <Image   Source="/images/Alarm.png"  ></Image>
                </Button>
               
                <TextBlock FontFamily="{StaticResource RegularFont}" Foreground="#333333" FontSize="18" Grid.Column="2" Grid.Row="0">时间</TextBlock>
                <TextBlock FontFamily="{StaticResource LightFont}" FontWeight="Light" Foreground="#333333" FontSize="16" Grid.Column="2" Grid.Row="1">时间</TextBlock>
                <TextBlock FontFamily="{StaticResource LightFont}" FontWeight="Light" Foreground="#666666" FontSize="10" Grid.Column="2" Grid.Row="2">时间</TextBlock>
                <StackPanel Grid.Column="2" Grid.Row="3" Orientation="Horizontal">
                    <ToggleButton>toggle switch</ToggleButton>
                    <TextBlock Margin="20,0,0,0">提醒已生效</TextBlock>
                    <Button Click="ReminderTimer_replay">replay</Button>
                </StackPanel>
            </Grid>
        </Border>
    </Grid>
</UserControl>
 
 
C#  code  后台
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 public partial class ReminderTimer : UserControl
    {
        private SoundPlayer player = null;
        private MediaPlayer currentPlayer = null;
        public ReminderTimer()
        {
            InitializeComponent();
            this.Loaded += ReminderTimer_Loaded;
            player = new SoundPlayer();
            this.Unloaded += ReminderTimer_Unloaded;
        }
 
        private void ReminderTimer_Unloaded(object sender, RoutedEventArgs e)
        {
            currentPlayer.Stop();
            currentPlayer.Close();
 
        }
 
        private void ReminderTimer_Loaded(object sender, RoutedEventArgs e)
        {
            initalplayer();
        }
        private void inital()
        {
            string str = System.IO.Directory.GetCurrentDirectory();
            string path = Environment.CurrentDirectory;
            string p = new Uri("ms-appx:///sound/AlarmSound.wma").ToString();
            // string m=  Application.StartupPath;
            //  player.SoundLocation = "/sound/美国往事.wav";//（将播放音乐放在应用程序Debug目录下）
            // player.SoundLocation = "美国往事.wav";
            int index = str.LastIndexOf(@"\bin");
            if (index > 0)
            {
                str = str.Substring(0, index) + @"\sound\AlarmSound.wma";
            }
            player.SoundLocation = str;
            player.Load();
            //音乐播放
            player.Play();
        }
        //ToastAudio Audio;
        private void initalplayer()
        {
            currentPlayer = new MediaPlayer();
 
 
            //Audio = new ToastAudio()
            //{
            //    Loop = true,
            //    Src = new Uri("ms-appx:///HPControls/Assets/AlarmSound.wma")
            //}
 
 
            //"C:\Users\bruce\Desktop\UWP\WinTest\sound\AlarmSound.wma"
            // Src = new Uri("ms-appx:///HPControls/Assets/AlarmSound.wma")
            var path = @"C:\Users\bruce\Desktop\UWP\WinTest\sound\AlarmSound.wma";
            //Uri audioUri = new Uri("ms-appx:///WinTest/sound/AlarmSound.wma");
            Uri audioUri = new Uri(path);
            
            currentPlayer.Open(audioUri);
            currentPlayer.MediaEnded += CurrentPlayer_MediaEnded;
            currentPlayer.Play();
        }
 
        private void CurrentPlayer_MediaEnded(object sender, EventArgs e)
        {
            var path = @"C:\Users\bruce\Desktop\UWP\WinTest\sound\AlarmSound.wma";
            //Uri audioUri = new Uri("ms-appx:///WinTest/sound/AlarmSound.wma");
            Uri audioUri = new Uri(path);
 
            currentPlayer.Open(audioUri);
            currentPlayer.Play();
        }
 
        private void Button_Click(object sender, RoutedEventArgs e)
        {
            currentPlayer.Stop();
        }
 
        private void ReminderTimer_replay(object sender, RoutedEventArgs e)
        {
            currentPlayer.Play();
        }
    }

public partial class ReminderTimer : UserControl    {        private SoundPlayer player = null;        private MediaPlayer currentPlayer = null;        public ReminderTimer()        {            InitializeComponent();            this.Loaded += ReminderTimer_Loaded;            player = new SoundPlayer();            this.Unloaded += ReminderTimer_Unloaded;        }
        private void ReminderTimer_Unloaded(object sender, RoutedEventArgs e)        {            currentPlayer.Stop();            currentPlayer.Close();
        }
        private void ReminderTimer_Loaded(object sender, RoutedEventArgs e)        {            initalplayer();        }        private void inital()        {            string str = System.IO.Directory.GetCurrentDirectory();            string path = Environment.CurrentDirectory;            string p = new Uri("ms-appx:///sound/AlarmSound.wma").ToString();            // string m=  Application.StartupPath;            //  player.SoundLocation = "/sound/美国往事.wav";//（将播放音乐放在应用程序Debug目录下）            // player.SoundLocation = "美国往事.wav";            int index = str.LastIndexOf(@"\bin");            if (index > 0)            {                str = str.Substring(0, index) + @"\sound\AlarmSound.wma";            }            player.SoundLocation = str;            player.Load();            //音乐播放            player.Play();        }        //ToastAudio Audio;        private void initalplayer()        {            currentPlayer = new MediaPlayer();

            //Audio = new ToastAudio()            //{            //    Loop = true,            //    Src = new Uri("ms-appx:///HPControls/Assets/AlarmSound.wma")            //}

            //"C:\Users\bruce\Desktop\UWP\WinTest\sound\AlarmSound.wma"            // Src = new Uri("ms-appx:///HPControls/Assets/AlarmSound.wma")            var path = @"C:\Users\bruce\Desktop\UWP\WinTest\sound\AlarmSound.wma";            //Uri audioUri = new Uri("ms-appx:///WinTest/sound/AlarmSound.wma");            Uri audioUri = new Uri(path);                        currentPlayer.Open(audioUri);            currentPlayer.MediaEnded += CurrentPlayer_MediaEnded;            currentPlayer.Play();        }
        private void CurrentPlayer_MediaEnded(object sender, EventArgs e)        {            var path = @"C:\Users\bruce\Desktop\UWP\WinTest\sound\AlarmSound.wma";            //Uri audioUri = new Uri("ms-appx:///WinTest/sound/AlarmSound.wma");            Uri audioUri = new Uri(path);
            currentPlayer.Open(audioUri);            currentPlayer.Play();        }
        private void Button_Click(object sender, RoutedEventArgs e)        {
            currentPlayer.Stop();

        }
        private void ReminderTimer_replay(object sender, RoutedEventArgs e)        {            currentPlayer.Play();        }    }