public override float computeMaxScrollOffset(int childCount)
{
if (childCount == 0)
{
return(0.0f);
}
int rowCount = ShrineHomeUtils._rowAtIndex(childCount - 1) + 1;
float?rowSpacing = this.rowStride - this.tileHeight;
return((this.rowStride * rowCount - rowSpacing) ?? 0.0f);
}
public override SliverGridGeometry getGeometryForChildIndex(int index)
{
int row = ShrineHomeUtils._rowAtIndex(index);
int column = ShrineHomeUtils._columnAtIndex(index);
int columnSpan = ShrineHomeUtils._columnSpanAtIndex(index);
return(new SliverGridGeometry(
scrollOffset: row *this.rowStride,
crossAxisOffset: column * this.columnStride,
mainAxisExtent: this.tileHeight,
crossAxisExtent: this.tileWidth + (columnSpan - 1) * this.columnStride
));
}
public override int getMaxChildIndexForScrollOffset(float scrollOffset)
{
return(ShrineHomeUtils._maxIndexInRow((int)(scrollOffset / this.rowStride)));
}
