public PhotosViewModel(IMediaAlbum album)
{
album.GetAllMediaFilesAsync()
.ContinueWith((arg) =>
{
Photos = arg.Result.Select(a => new PhotoItem(a)).ToArray();
});
}
public Task <IMediaAlbum> CreateAlbum(string title)
{
return(Task.Run(() =>
{
IMediaAlbum album = null;
string id = null;
if (PHPhotoLibrary.SharedPhotoLibrary.PerformChangesAndWait(() =>
{
var request = PHAssetCollectionChangeRequest.CreateAssetCollection(title);
id = request.PlaceholderForCreatedAssetCollection.LocalIdentifier;
}, out var error))
{
var col = (PHAssetCollection)PHAssetCollection.FetchAssetCollections(new[] { id }, null).First();
album = new MediaAlbum(col);
}
return album;
}));
}
public Photos(IMediaAlbum album)
{
InitializeComponent();
BindingContext = new PhotosViewModel(album);
}