Created
July 23, 2012 16:19
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MY GetView - Gridview. ( very slow!!!!!! in tablet to scrolling 5 columns..)
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| public override View GetView(int position, View convertView, ViewGroup parent) | |
| { | |
| ViewHolder holder; | |
| AdapterArticuloConsultaItem item; | |
| string path; | |
| bool encontrado = false; | |
| Bitmap bMap = null; | |
| if (convertView == null) | |
| { | |
| convertView = lif.Inflate(Resource.Layout.AArticuloConsultarItem, null); | |
| holder = new ViewHolder(); | |
| holder.lbCodigo = convertView.FindViewById<TextView>(Resource.AArticuloConsultarItem.lbCodigo); | |
| holder.lbNombre = convertView.FindViewById<TextView>(Resource.AArticuloConsultarItem.lbNombre); | |
| holder.lbPrecio = convertView.FindViewById<TextView>(Resource.AArticuloConsultarItem.lbPrecio); | |
| holder.pbImagen = convertView.FindViewById<ProgressBar>(Resource.AArticuloConsultarItem.progressBar1); | |
| holder.ivImagen = convertView.FindViewById<ImageView>(Resource.AArticuloConsultarItem.imageView1); | |
| holder.position = position; | |
| convertView.Tag = (ViewHolder)holder; | |
| } | |
| else | |
| { | |
| holder = (ViewHolder)convertView.Tag; | |
| } | |
| #region Poner valores a controles | |
| item = (AdapterArticuloConsultaItem)items[position]; | |
| holder.lbCodigo.Text = item.Codigo; | |
| holder.lbNombre.Text = item.Nombre; | |
| holder.lbPrecio.Text = item.Precio.ToString(); | |
| path = System.IO.Path.Combine(System.IO.Path.Combine(DDOL.MFile.SharedFolder(), "catalogo"), item.Codigo) + ".jpg"; | |
| ThreadPool.QueueUserWorkItem((object state) => | |
| { | |
| //Background | |
| if (System.IO.File.Exists(path)) | |
| { | |
| bMap = DecodeFile(path); | |
| bMap = Bitmap.CreateScaledBitmap(bMap, 200, 200, true); | |
| encontrado = true; | |
| } | |
| //Hilo principal | |
| Android.App.Application.SynchronizationContext.Post(_ => | |
| { | |
| if (encontrado) | |
| { | |
| holder.ivImagen.SetImageBitmap(bMap); | |
| } | |
| else | |
| holder.ivImagen.SetImageResource(Resource.Drawable.Icon); | |
| holder.pbImagen.Visibility = ViewStates.Gone; | |
| this.NotifyDataSetChanged(); | |
| }, null); | |
| }); | |
| #endregion | |
| return convertView; | |
| } |
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