WP8 get URI of images in MediaLibrary - windows-phone-8

Question

As I am using my own LongListSelector to let the user select from an image I need to retrieve the URI's of all images in the Medialibrary. I couldn't find any possibility to do this yet.
All I have seen what is possible is to get the name of the image:
MediaLibrary m = new MediaLibrary();
foreach (var r in m.Pictures)
{
Stream imageStream = r.GetImage();
}
How can I get the rest of the path?
EDIT
Following the first solution:
Gallery.xaml
<phone:LongListSelector
x:Name="GalleryLLS"
LayoutMode="Grid"
GridCellSize="108,108"
SelectionChanged="GalleryLLS_SelectionChanged"
Margin="0,0,144,12"
ItemsSource="{Binding ListOfImages}" >
<phone:LongListSelector.ItemTemplate>
<DataTemplate>
<StackPanel>
<Image Width="150" Height="150"
Source="{Binding}"/>
</StackPanel>
</DataTemplate>
</phone:LongListSelector.ItemTemplate>
</phone:LongListSelector>
Gallery.xaml.cs
private List<WriteableBitmap> _listOfImages = new List<WriteableBitmap>();
public List<WriteableBitmap> ListOfImages
{
get { return _listOfImages; }
set { _listOfImages = value; }
}
public Gallery()
{
InitializeComponent();
var ml = new MediaLibrary();
var Pictures = ml.Pictures;
foreach (var item in Pictures)
{
ListOfImages.Add(PictureDecoder.DecodeJpeg(item.GetImage()));
}
}
results in not showing images. Debugger shows that imageas are added correctly to my list but I won't see anything.

Answer 1

It seems that the API doesn't exposes URI property for pictures returned from Media Library. So you need to do it with different approach. For example, you can have a list of WritableBitmaps instead of list of URIs :
private List<WriteableBitmap> _listOfImages = new List<WriteableBitmap>();
public List<WriteableBitmap> ListOfImages
{
get { return _listOfImages; }
set { _listOfImages = value; }
}
.......
.......
var ml = new MediaLibrary();
var Pictures = ml.Pictures;
foreach (var item in Pictures)
{
ListOfImages.Add(PictureDecoder.DecodeJpeg(item.GetImage()));
}
........
//in XAML
<phone:LongListSelector ItemsSource="{Binding ListOfImages}">
<phone:LongListSelector.ItemTemplate>
<DataTemplate>
<StackPanel>
<Image Width="150" Height="150"
Source="{Binding}"/>
</StackPanel>
</DataTemplate>
</phone:LongListSelector.ItemTemplate>
........
</phone:LongListSelector>
........
[Codes adapted from http://www.neelesh-vishwakarma.com]

Answer 2

Why do you need the path? To show the image? If you just need to show the image in the list as a thumbnail, you can use the stream to create a BitmapImage:
var bi = new BitmapImage();
bi.SetSource(r.GetThumbnail());
Now you can set that bi as a Image.Source.