void CleanUpAdapter()
{
if (_adapter != null)
{
_adapter.Dispose();
_adapter = null;
}
}
protected override void OnElementChanged(ElementChangedEventArgs <XamGridView> e)
{
base.OnElementChanged(e);
try
{
var context = Xamarin.Forms.Forms.Context;
var collectionView = new AGridView(context);
collectionView.SetGravity(GravityFlags.Center);
collectionView.StretchMode = StretchMode.StretchColumnWidth;
var metrics = Resources.DisplayMetrics;
var width = metrics.WidthPixels;
var spacing = (int)e.NewElement.ColumnSpacing * 3;
int noOfColumns = (int)e.NewElement.NoOfColumns;
int itemWidth = width / noOfColumns - spacing;
collectionView.SetNumColumns(noOfColumns);
collectionView.SetBackgroundColor(Element.BackgroundColor.ToAndroid());
collectionView.SetHorizontalSpacing(spacing);
collectionView.SetVerticalSpacing(spacing);
this.Unbind(e.OldElement);
this.Bind(e.NewElement);
_adapter = new GridViewAdapter(context, collectionView, Element, itemWidth);
collectionView.Adapter = _adapter;
collectionView.ItemClick += CollectionViewItemClick;
base.SetNativeControl(collectionView);
}
catch (Exception ex)
{
Console.WriteLine(ex?.Message);
}
}