private async void LoadPhoto(string id, NSIndexPath path, UIImageView target) {
UIImage photoData = null;
WeakReference wr;
if (_photos.TryGetValue (id, out wr)) {
if (wr.IsAlive) {
photoData = (UIImage)wr.Target;
} else {
_photos.Remove (id);
}
}
if (photoData == null) {
var photo = new Picture (id);
// get the photo bits, resized to fit 200x200
var loadTask = await photo.GetFileAsync (200);
if (loadTask.IsSuccess && loadTask.Value != null) {
NSData d = NSData.FromStream (loadTask.Value);
photoData = UIImage.LoadFromData (d);
_photos [id] = new WeakReference(photoData);
// update the row after the load completes.
_parent.OnCheckinsUpdate (null, path);
}
}
target.Image = photoData;
}
