<phone:PhoneApplicationPage x:Class="Demo.Media.Audio"xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"xmlns:d="http://schemas.microsoft.com/expression/blend/2008"xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"FontFamily="{StaticResource PhoneFontFamilyNormal}"FontSize="{StaticResource PhoneFontSizeNormal}"Foreground="{StaticResource PhoneForegroundBrush}"SupportedOrientations="Portrait" Orientation="Portrait"mc:Ignorable="d" d:DesignHeight="768" d:DesignWidth="480"shell:SystemTray.IsVisible="True"><Grid x:Name="LayoutRoot" Background="Transparent"><StackPanel Orientation="Vertical"><MediaElement x:Name="mediaElement" Source="Assets/SuperMario.mp3" AutoPlay="False" /><Button x:Name="btnPlay" Content="播放" Click="btnPlay_Click" /><Button x:Name="btnPause" Content="暂停" Click="btnPause_Click" /><TextBlock x:Name="lblStatus" /></StackPanel></Grid></phone:PhoneApplicationPage>

/** MediaElement - 用于播放视频或音频，本地地址或远程地址均可*     支持的编码格式参见：http://msdn.microsoft.com/en-us/library/ff462087(v=vs.92)* * MediaElement 的详细说明参见：http://www.cnblogs.com/webabcd/archive/2008/12/01/1344632.html* Launcher 方式参见：http://www.cnblogs.com/webabcd/archive/2012/06/14/2548776.html 中的 MediaPlayerLauncher* * XNA 播放音频参见：http://www.cnblogs.com/webabcd/archive/2011/07/11/2102713.html*/using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using Microsoft.Phone.Controls;namespace Demo.Media
{public partial class Audio : PhoneApplicationPage{public Audio(){InitializeComponent();mediaElement.CurrentStateChanged += new RoutedEventHandler(mediaElement_CurrentStateChanged);}void mediaElement_CurrentStateChanged(object sender, RoutedEventArgs e){// 显示 MediaElement 的当前状态lblStatus.Text = mediaElement.CurrentState.ToString();}private void btnPlay_Click(object sender, RoutedEventArgs e){// 播放
            mediaElement.Play();}private void btnPause_Click(object sender, RoutedEventArgs e){// 暂停
            mediaElement.Pause();}}
}

<phone:PhoneApplicationPage x:Class="Demo.Media.Video"xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"xmlns:d="http://schemas.microsoft.com/expression/blend/2008"xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"FontFamily="{StaticResource PhoneFontFamilyNormal}"FontSize="{StaticResource PhoneFontSizeNormal}"Foreground="{StaticResource PhoneForegroundBrush}"SupportedOrientations="Portrait" Orientation="Portrait"mc:Ignorable="d" d:DesignHeight="768" d:DesignWidth="480"shell:SystemTray.IsVisible="True"><Grid x:Name="LayoutRoot" Background="Transparent"><StackPanel Orientation="Vertical"><MediaElement x:Name="mediaElement" Source="Assets/Demo.mp4" AutoPlay="False" /><Button x:Name="btnPlay" Content="播放" Click="btnPlay_Click" /><Button x:Name="btnPause" Content="暂停" Click="btnPause_Click" /><TextBlock x:Name="lblStatus" /></StackPanel></Grid></phone:PhoneApplicationPage>

/** MediaElement - 用于播放视频或音频，本地地址或远程地址均可*     支持的编码格式参见：http://msdn.microsoft.com/en-us/library/ff462087(v=vs.92)* * MediaElement 的详细说明参见：http://www.cnblogs.com/webabcd/archive/2008/12/01/1344632.html* Launcher 方式参见：http://www.cnblogs.com/webabcd/archive/2012/06/14/2548776.html 中的 MediaPlayerLauncher*/using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using Microsoft.Phone.Controls;namespace Demo.Media
{public partial class Video : PhoneApplicationPage{public Video(){InitializeComponent(); mediaElement.CurrentStateChanged += new RoutedEventHandler(mediaElement_CurrentStateChanged);}void mediaElement_CurrentStateChanged(object sender, RoutedEventArgs e){// 显示 MediaElement 的当前状态lblStatus.Text = mediaElement.CurrentState.ToString();}private void btnPlay_Click(object sender, RoutedEventArgs e){// 播放
            mediaElement.Play();}private void btnPause_Click(object sender, RoutedEventArgs e){// 暂停
            mediaElement.Pause();}}
}

<phone:PhoneApplicationPage x:Class="Demo.Media.IntegrateWithTheMusicAndVideoHub"xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"xmlns:d="http://schemas.microsoft.com/expression/blend/2008"xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"FontFamily="{StaticResource PhoneFontFamilyNormal}"FontSize="{StaticResource PhoneFontSizeNormal}"Foreground="{StaticResource PhoneForegroundBrush}"SupportedOrientations="Portrait" Orientation="Portrait"mc:Ignorable="d" d:DesignHeight="768" d:DesignWidth="480"shell:SystemTray.IsVisible="True"><Grid x:Name="LayoutRoot" Background="Transparent"><StackPanel Orientation="Vertical"><TextBlock TextWrapping="Wrap"><Run>本 app 会出现在“音乐视频中心”中的“应用程序”下</Run><LineBreak /><Run>操作完成后，请去“音乐视频中心”看效果</Run></TextBlock><Button x:Name="btnNow" Content="设置“音乐视频中心”中的“正在播放磁贴”" Click="btnNow_Click" /><Button x:Name="btnRecent" Content="向“音乐视频中心”中的“历史记录”添加新的磁贴" Click="btnRecent_Click" /><Button x:Name="btnAcquired" Content="向“音乐视频中心”中的“最新上市”添加新的磁贴" Click="btnAcquired_Click" /></StackPanel></Grid></phone:PhoneApplicationPage>

/** 本例演示如何将 app 集成进“音乐视频中心”* * MediaHistoryItem - 出现在“音乐视频中心”中的磁贴对象（包括“正在播放”，“历史记录”和“最新上市”）*     ImageStream - 磁贴上需要显示的背景图片流*     Title - 磁贴的标题*     PlayerContext - key/value 对集合，用户点击“历史记录”或“最新上市”中的某个磁贴会进入到 app 的主页面，同时也会将对应的 key/value 数据一同带过去，参见 MainPage.xaml.cs* * MediaHistory - 管理 MediaHistoryItem 的类*     Instance - 获得 MediaHistory 实例*     NowPlaying - 指定“正在播放”对象，MediaHistoryItem 类型*     WriteRecentPlay(MediaHistoryItem item) - 在“历史记录”中增加一个指定的 MediaHistoryItem 对象*     WriteAcquiredItem(MediaHistoryItem item) - 在“最新上市”中增加一个指定的 MediaHistoryItem 对象*     * * 注意：* 1、“正在播放”磁贴大小为 358 * 358，背景图不能大于 75 KB* 2、“历史记录”和“最新上市”磁贴大小为 173 * 173* 3、app 提交到商店审核时，如果认证程序检测到 app 调用了 MediaHistory 和 MediaHistoryItem，则此 app 就会出现在“音乐视频中心”的应用程序中* 4、出于测试目的，如果想在 app 提交商店前使其出现在“音乐视频中心”的应用程序中的话，需要修改 manifest，在 <App /> 中增加 HubType="1"* 5、MediaHistoryItem 的 PlayerContext 指定的 key/value 对集合是 MediaHistoryItem 的上下文数据，用户在“历史记录”或“最新上市”单击某个磁贴对象时，会跳转到 app 的主页面，同时将对应的 key/value 数据一同带过去，其可以在主页面通过 NavigationContext.QueryString[key] 获取到，参见 MainPage.xaml.cs*/using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using Microsoft.Phone.Controls;using Microsoft.Devices;
using System.IO;
using System.Windows.Resources;
using System.IO.IsolatedStorage;
using Microsoft.Phone.BackgroundAudio;namespace Demo.Media
{public partial class IntegrateWithTheMusicAndVideoHub : PhoneApplicationPage{public IntegrateWithTheMusicAndVideoHub(){InitializeComponent();PlayAudio();}// 播放一个音频private void PlayAudio(){// 由于播放本地音频时只能从独立存储中播放，所以此处把示例用音频文件从程序包中复制到独立存储using (IsolatedStorageFile storage = IsolatedStorageFile.GetUserStoreForApplication()){if (!storage.FileExists("SuperMario.mp3")){StreamResourceInfo resource = Application.GetResourceStream(new Uri("Assets/SuperMario.mp3", UriKind.Relative));using (IsolatedStorageFileStream file = storage.CreateFile("SuperMario.mp3")){int chunkSize = 4096;byte[] bytes = new byte[chunkSize];int byteCount;while ((byteCount = resource.Stream.Read(bytes, 0, chunkSize)) > 0){file.Write(bytes, 0, byteCount);}}}}BackgroundAudioPlayer.Instance.Play();}private void btnNow_Click(object sender, RoutedEventArgs e){StreamResourceInfo sri = Application.GetResourceStream(new Uri("Assets/TileBackgroundRed.png", UriKind.Relative));MediaHistoryItem mediaHistoryItem = new MediaHistoryItem();mediaHistoryItem.ImageStream = sri.Stream;mediaHistoryItem.Title = "正在播放";mediaHistoryItem.PlayerContext.Add("keyNow", "正在播放的音乐");MediaHistory.Instance.NowPlaying = mediaHistoryItem;}private void btnRecent_Click(object sender, RoutedEventArgs e){StreamResourceInfo sri = Application.GetResourceStream(new Uri("Assets/TileBackgroundGreen.png", UriKind.Relative));MediaHistoryItem mediaHistoryItem = new MediaHistoryItem();mediaHistoryItem.ImageStream = sri.Stream;mediaHistoryItem.Title = "最近播放";mediaHistoryItem.PlayerContext.Add("keyRecent", "最近播放的音乐");MediaHistory.Instance.WriteRecentPlay(mediaHistoryItem);}private void btnAcquired_Click(object sender, RoutedEventArgs e){StreamResourceInfo sri = Application.GetResourceStream(new Uri("Assets/TileBackgroundBlue.png", UriKind.Relative));MediaHistoryItem mediaHistoryItem = new MediaHistoryItem();mediaHistoryItem.ImageStream = sri.Stream;mediaHistoryItem.Title = "最新上市";mediaHistoryItem.PlayerContext.Add("keyAcquired", "最新上市的音乐");MediaHistory.Instance.WriteAcquiredItem(mediaHistoryItem);}}
}