public override void FeedShare(
string toId,
Uri link,
string linkName,
string linkCaption,
string linkDescription,
Uri picture,
string mediaSource,
FacebookDelegate <IShareResult> callback)
{
string linkStr = link != null?link.ToString() : string.Empty;
string pictureStr = picture != null?picture.ToString() : string.Empty;
IOSFacebook.IOSFeedShare(
this.AddCallback(callback),
toId,
linkStr,
linkName,
linkCaption,
linkDescription,
pictureStr,
mediaSource);
}
