public void UpdateUi(ViewCell viewCell, object dataContext, FastListView.Forms.VisualElements.FastListView listview, int height)
{
var contentLayout = (FrameLayout)ItemView;
_listview = listview;
_viewCell = viewCell;
viewCell.BindingContext = dataContext;
viewCell.Parent = listview;
var metrics = Resources.System.DisplayMetrics;
// Layout and Measure Xamarin Forms View
var _view = Platform.CreateRendererWithContext(viewCell.View, Android.App.Application.Context);
SizeRequest elementSizeRequest = _view.Element.Measure(Android.App.Application.Context.FromPixels(listview.Width), double.PositiveInfinity, MeasureFlags.IncludeMargins);
var pixel_height = (int)Android.App.Application.Context.ToPixels(_viewCell.Height > 0 ? _viewCell.Height : elementSizeRequest.Request.Height);
//var elementSizeRequest = viewCell.View.Measure(listview.Width, double.PositiveInfinity, MeasureFlags.IncludeMargins);
var _height = (int)((elementSizeRequest.Request.Height + viewCell.View.Margin.Top + viewCell.View.Margin.Bottom) * metrics.Density);
//var _height = (int)((height + viewCell.View.Margin.Top + viewCell.View.Margin.Bottom) * metrics.Density);
var _width = (int)((listview.Width + viewCell.View.Margin.Left + viewCell.View.Margin.Right) * metrics.Density);
viewCell.View.Layout(new Rectangle(0, 0, listview.Width, elementSizeRequest.Request.Height));
//viewCell.View.Layout(new Rectangle(0, 0, listview.Width, _height));
// Layout Android View
var layoutParams = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MatchParent, ViewGroup.LayoutParams.MatchParent)
{
Height = _height,
Width = _width
};
if (Platform.GetRenderer(viewCell.View) == null)
{
Platform.SetRenderer(viewCell.View, Platform.CreateRendererWithContext(viewCell.View, Android.App.Application.Context));
}
var renderer = Platform.GetRenderer(viewCell.View);
//var viewGroup = renderer.ViewGroup;
var viewGroup = renderer.View;
viewGroup.LayoutParameters = layoutParams;
viewGroup.Layout(0, 0, _width, _height);
contentLayout.RemoveAllViews();
contentLayout.AddView(viewGroup);
}
public float CalculateHeightForCell(FastListView.Forms.VisualElements.FastListView fastListView, ViewCell cell)
{
var target = cell.View;
if (_renderer == null)
{
_renderer = Platform.CreateRendererWithContext(target, Android.App.Application.Context);
}
else
{
_renderer.SetElement(target);
}
Platform.SetRenderer(target, _renderer);
var req = target.Measure(fastListView.Width, double.PositiveInfinity, MeasureFlags.IncludeMargins);
return((float)req.Request.Height);
}
public RecyclerViewAdapter(FastListView.Forms.VisualElements.FastListView listView)
{
_fastListView = listView;
_dataSource = (IList)listView.ItemsSource;
}
