コード例 #1
0
        public override void OnBindViewHolder(RecyclerView.ViewHolder holder, int position)
        {
            var isHeader = holder is WFGroupHeaderViewHolder;

            var itemView = holder.ItemView;
            var element  = (itemView as VisualElementRenderer <View>).Element;

            var dpHeight = 0;
            int pxHeight;
            var dpWidth = (int)ItemWidth;

            if (holder is WFHeaderViewHolder)
            {
                dpHeight = (int)Element.Header.HeightRequest;

                element.Layout(new Rectangle(0, 0, Element.Width, dpHeight));
                pxHeight = DroidUtils.DpToPixel(dpHeight);

                var pxWidth      = DroidUtils.DpToPixel((int)Element.Width);
                var layoutParams = new ViewGroup.LayoutParams(pxWidth, pxHeight);
                itemView.LayoutParameters = layoutParams;
                itemView.Layout(0, 0, pxWidth, pxHeight);

                var lParams = new StaggeredGridLayoutManager.LayoutParams(itemView.LayoutParameters);
                lParams.FullSpan          = true;
                itemView.LayoutParameters = lParams;
                return;
            }

            if (Element.Header != null)
            {
                position--; //because the first index is the Header View
            }
            element.BindingContext = SourceList[position];

            if (holder is WFGroupHeaderViewHolder)
            {
                (holder as WFGroupHeaderViewHolder).BindingContext = element.BindingContext;

                dpHeight = (int)Element.HeaderTemplateHeight;

                element.Layout(new Rectangle(0, 0, Element.Width, dpHeight));
                pxHeight = DroidUtils.DpToPixel(dpHeight);

                var pxWidth      = DroidUtils.DpToPixel((int)Element.Width);
                var layoutParams = new ViewGroup.LayoutParams(pxWidth, pxHeight);
                itemView.LayoutParameters = layoutParams;
                itemView.Layout(0, 0, pxWidth, pxHeight);

                var lParams = new StaggeredGridLayoutManager.LayoutParams(itemView.LayoutParameters);
                lParams.FullSpan          = true;
                itemView.LayoutParameters = lParams;
            }
            else
            {
                (holder as WFViewHolder).BindingContext = element.BindingContext;

                if (Element.GetHeightForCellDelegate != null)
                {
                    dpHeight = (int)Element.GetHeightForCellDelegate(SourceList[position]);
                }
                else
                {
                    dpHeight = _heights[position];
                }

                element.Layout(new Rectangle(0, 0, dpWidth, dpHeight));
                pxHeight = DroidUtils.DpToPixel(dpHeight);

                var pxWidth      = DroidUtils.DpToPixel((int)ItemWidth);
                var layoutParams = new ViewGroup.LayoutParams(pxWidth, pxHeight);
                itemView.LayoutParameters = layoutParams;
                itemView.Layout(0, 0, pxWidth, pxHeight);
            }
        }
コード例 #2
0
 public static void Init(Context context)
 {
     _context = context;
     DroidUtils.Init(context);
     FormsView_Utils.Init(context);
 }