public HouseMapAnnotation (CLLocationCoordinate2D coordinate, string title, House house, string rank) {
this.coordinate = coordinate;
this.title = title;
this.House = house;
this.subtitle = string.Format ("({0}) Likes",house.Likes);
this.Rank = rank;
}
public string GetRankForHouse(House house)
{
var grouping = houses.GroupBy (x => x.Likes).ToList();
var rank = 1;
foreach (var group in grouping.OrderByDescending(x=>x.Key)) {
if (group.Any (x=>x.ObjectId == house.ObjectId))
return group.Count() > 1 ? string.Format("T{0}",rank.ToString()) : rank.ToString ();
rank++;
}
return rank.ToString();
}
private async void FetchImageAsync(MKAnnotationView annotationView, House house)
{
try {
if (house.Thumbnail == null) return;
UIImage thumbnail;
//Check Cache First
var houseImageCache = await parent.imageCacheRepo.GetHouseImagesFor(house.ObjectId);
if (houseImageCache == null)
{
//If Not in Cache set cache;
var byteArray = await new HttpClient ().GetByteArrayAsync (house.Thumbnail.Url);
parent.imageCacheRepo.SaveHouseImages(new HouseImages(){ObjectId = house.ObjectId, Thumbnail= byteArray});
thumbnail = UIImage.LoadFromData (NSData.FromArray (byteArray));
}
else
{
if (houseImageCache.Thumbnail != null)
{
thumbnail = UIImage.LoadFromData (NSData.FromArray (houseImageCache.Thumbnail));
}
else {
var byteArray = await new HttpClient ().GetByteArrayAsync (house.Thumbnail.Url);
houseImageCache.Thumbnail = byteArray;
await parent.imageCacheRepo.UpdateHouseImages(houseImageCache);
thumbnail = UIImage.LoadFromData (NSData.FromArray (byteArray));
}
}
annotationView.LeftCalloutAccessoryView = new UIImageView(thumbnail);
} catch (Exception e) {
Console.WriteLine ("Error Retrieving Image. {0}", e.Message);
}
}