public Task <MediaFile> SaveThumbnailAsync(string path)
{
if (path == null)
{
throw new ArgumentNullException("path");
}
string lookupColumn = (IsAggregate)
? ContactsContract.ContactsColumns.LookupKey
: ContactsContract.RawContactsColumns.ContactId;
AsyncQuery <byte[]> query = new AsyncQuery <byte[]> (this.content, c => c.GetBlob(c.GetColumnIndex(ContactsContract.CommonDataKinds.Photo.PhotoColumnId)));
query.StartQuery(0, null, ContactsContract.Data.ContentUri, new[] { ContactsContract.CommonDataKinds.Photo.PhotoColumnId, ContactsContract.DataColumns.Mimetype },
lookupColumn + "=? AND " + ContactsContract.DataColumns.Mimetype + "=?", new[] { Id, ContactsContract.CommonDataKinds.Photo.ContentItemType }, null);
return(query.Task.ContinueWith(t =>
{
if (t.Result == null)
{
return null;
}
File.WriteAllBytes(path, t.Result);
return new MediaFile(path, deletePathOnDispose: false);
}, TaskScheduler.Default));
}
public Task<MediaFile> SaveThumbnailAsync (string path)
{
if (path == null)
throw new ArgumentNullException ("path");
string lookupColumn = (IsAggregate)
? ContactsContract.ContactsColumns.LookupKey
: ContactsContract.RawContactsColumns.ContactId;
AsyncQuery<byte[]> query = new AsyncQuery<byte[]> (this.content, c => c.GetBlob (c.GetColumnIndex (ContactsContract.CommonDataKinds.Photo.PhotoColumnId)));
query.StartQuery (0, null, ContactsContract.Data.ContentUri, new[] { ContactsContract.CommonDataKinds.Photo.PhotoColumnId, ContactsContract.DataColumns.Mimetype },
lookupColumn + "=? AND " + ContactsContract.DataColumns.Mimetype + "=?", new[] { Id, ContactsContract.CommonDataKinds.Photo.ContentItemType }, null);
return query.Task.ContinueWith (t =>
{
if (t.Result == null)
return null;
File.WriteAllBytes (path, t.Result);
return new MediaFile (path, deletePathOnDispose: false);
}, TaskScheduler.Default);
}