windows-phone-7 – 是否可以使用不同的IsolatedStorageSettings.ApplicationSettings?

我有一个问题,似乎我对我的ApplicationSettings做的更改没有更新我的AudioPlayerAgents ApplicationSettings应该是相同的?!

我的程序看起来像这样:

在OnNavigatedTo的MainPage.xaml.cs中,我创建了两个音频文件数组

Audio[] aud = new Audio[2];
Audio[] aud1 = new Audio[2];

aud[0] = new Audio(new Uri("1.mp3", UriKind.Relative), 
                   "Test1", 
                   "Test1",
                   new Uri("Images/Covers/0000000018724345_256x256_large.jpg",                       UriKind.Relative));

aud[1] = new Audio(new Uri("2.mp3", UriKind.Relative), 
                   "Test2", 
                   "Test2",
                   new Uri("Images/Covers/0000000018698018_256x256_large.jpg", UriKind.Relative));

aud1[0] = new Audio(new Uri("3.mp3", UriKind.Relative), 
                   "Test3", 
                   "Test3",
                   new Uri("Images/Covers/0000000018465020_256x256_large.jpg", UriKind.Relative));

 aud1[1] = new Audio(new Uri("http://traffic.libsyn.com/wpradio/WPRadio_29.mp3", UriKind.Absolute),
                   "Episode 29",
                   "Windows Phone Radio",
                   new Uri("Images/Covers/0000000018844939_256x256_large.jpg", UriKind.Relative));

然后我在ApplicationSettings中保存其中一个数组

IsolatedStorageSettings.ApplicationSettings["tracklist"] = aud;
IsolatedStorageSettings.ApplicationSettings.Save();

然后我关闭并启动BackgroundAudioPlayer.

BackgroundAudioPlayer.Instance.Close();
BackgroundAudioPlayer.Instance.Play();

在我的AudioPlayer中,我正在加载以前保存的ApplicationSettings,它工作正常.

Audio[] aud;
IsolatedStorageSettings.ApplicationSettings.TryGetValue<Audio[]>("tracklist", out aud);

但是当我后来想要将MainPage.xaml.cs中的ApplicationSettings替换为另一个数组时

  IsolatedStorageSettings.ApplicationSettings["tracklist"] = aud1;
  IsolatedStorageSettings.ApplicationSettings.Save();

并在我的AudioPlayer中再次加载值,我的ApplicationSettings中仍然存在旧值,AudioPlayerAgent和MainPage应该使用相同的ApplicationSettings吗?事实上,第一次保存并可用于AudioPlayerAgent,所以我错过了什么?

我的Audio类看起来像这样

[DataContractAttribute] 
public class Audio
{
    [DataMember]
    public Uri TrackUrl { get; set; }

    [DataMember]
    public string Title { get; set; }

    [DataMember]
    public string Artist { get; set; }

    [DataMember]
    public Uri CoverURL { get; set; }

    public Audio(Uri trackUrl, string title, string artist, Uri coverUrl)
    {
        TrackUrl = trackUrl;
        Title = title;
        Artist = artist;
        CoverURL = coverUrl;
    }
} 

最佳答案 我觉得你有另一个程序集/ dll中的MusicPlayerAgent.如果这样做会解释问题,因为每个程序集都有自己的独立存储.如果他们在同一个集会中,我不知道为什么那不起作用,因为我自己在几乎所有我的手机应用程序中都这样做.这是我读过的隔离存储的最佳读物.如果有什么我希望链接是一个很好的阅读.
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