public void UpdatedImage(Uri uri)
{
//// this is how the iOS version behaves, but on Android it seems to result in 'wrong images'
//context.RunOnUiThread(() => {
// var drawable = ImageLoader.DefaultRequestImage(uri, null);
// if (drawable == null) {
// //TODO: this shouldn't happen, if the UpdatedImage callback comes, it should ALWAYS be there
// ImageLoader.LogDebug(" ???? " + ImageName(uri.ToString()));
// } else {
// imageView.SetImageDrawable(drawable);
// }
//});
//return;
ImageLoader.LogDebug(" updt " + ImageName(uri.ToString()));
// imageViews are re-used (because the View/cells they live in are re-used),
// so just check the 'current' tag for the imageView matches the Url we are
// updating it to, if not then the image has been cached but is not required right now.
if (imageView.Tag.ToString() == uri.ToString())
{
context.RunOnUiThread(() => {
var drawable = ImageLoader.DefaultRequestImage(uri, null);
if (drawable == null)
{
//TODO: this shouldn't happen, if the UpdatedImage callback comes, it should ALWAYS be there
ImageLoader.LogDebug(" xxxx " + ImageName(uri.ToString()));
}
else
{
imageView.SetImageDrawable(drawable);
}
});
}
else
{
ImageLoader.LogDebug(
String.Format(" miss w{0}, g{1}" // wanted, but got
, ImageName(imageView.Tag.ToString())
, ImageName(uri.ToString())
)
);
// hit-and-hope, maybe the image we really want is already in the cache/filesystem
var uri1 = new Uri(imageView.Tag.ToString());
context.RunOnUiThread(() => {
var drawable = ImageLoader.DefaultRequestImage(uri1, this);
if (drawable != null)
{
imageView.SetImageDrawable(drawable);
}
});
}
}
public override View GetView(int position, View convertView, ViewGroup parent)
{
ViewHolder holder;
var view = convertView;
var item = items [position];
TextView tvTextView;
if (view == null)
{
view = inflater.Inflate(Resource.Layout.gridviewitems, parent, false);
view.SetTag(Resource.Id.picture, view.FindViewById(Resource.Id.picture));
view.SetTag(Resource.Id.text, view.FindViewById(Resource.Id.text));
holder = new ViewHolder();
holder.Name = (TextView)view.GetTag(Resource.Id.text);
//holder.Image = (ImageViewAsync)view.GetTag (Resource.Id.picture);
holder.Image = (SquareImageView)view.GetTag(Resource.Id.picture);
view.Tag = holder;
}
else
{
holder = (ViewHolder)view.Tag;
}
ivImageView = (ImageView)view.GetTag(Resource.Id.picture);
tvTextView = (TextView)view.GetTag(Resource.Id.text);
//ivImageView.SetImageResource (item.DrawableId);
tvTextView.Text = item.Name;
var uri = new Uri(item.ImgUrl);
var iw = new ImageWrapper(ivImageView, context);
ivImageView.Tag = uri.ToString();
try
{
var drawable = ImageLoader.DefaultRequestImage(uri, iw);
if (drawable != null) // use it
{
ivImageView.SetImageDrawable(drawable);
}
else // we're just going to grab it ourselves and not wait for the callback from ImageLoader
{
ivImageView.SetImageResource(item.DrawableId);
}
}
catch (Exception ex) {
Console.WriteLine(ex.ToString());
}
return(view);
}
