I have the problem that it seems like the changes I do to my ApplicationSettings are not updated in my AudioPlayerAgents ApplicationSettings which should be the same ?!
My program looks like this:
In my MainPage.xaml.cs in the OnNavigatedTo I am creating two arrays of Audio Files
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));
Then I am saving one of this arrays in the ApplicationSettings
IsolatedStorageSettings.ApplicationSettings["tracklist"] = aud;
IsolatedStorageSettings.ApplicationSettings.Save();
Then I am closing and starting the BackgroundAudioPlayer.
BackgroundAudioPlayer.Instance.Close();
BackgroundAudioPlayer.Instance.Play();
In my AudioPlayer I am loading the previously saved ApplicationSettings which works fine.
Audio[] aud;
IsolatedStorageSettings.ApplicationSettings.TryGetValue<Audio[]>("tracklist", out aud);
But when I later want to replace the ApplicationSettings in my MainPage.xaml.cs with the other array
IsolatedStorageSettings.ApplicationSettings["tracklist"] = aud1;
IsolatedStorageSettings.ApplicationSettings.Save();
And load the values again in my AudioPlayer there are still the old values in my ApplicationSettings, both the AudioPlayerAgent and the MainPage should use the same ApplicationSettings right ? In fact the first time it is saved and available to the AudioPlayerAgent, so what am I missing ?
My Audio class looks like this
[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;
}
}
I have a feeling that you have the MusicPlayerAgent in another assembly/dll. If you do that would explain the problem since each assembly has its own isolated storage. If they are in the same assembly I dont have any idea why that wouldnt work since I do that myself in almost all my phone apps I have. Here is the best read on Isolated Storage I have read. If anything I hope the link is a good read. Link