constructWidgets method

Widget constructWidgets(BuildContext context)

Implementation

Widget constructWidgets(BuildContext context) {
  List<List<Widget>> rows = [];
  int row = 0;
  double screenWidth = MediaQuery.of(context).size.width;
  int amountPerRow = (screenWidth / (widgetWidth + minSpace)).floor();
  int colCount = 1;
  int totalCount = 1;
  rows.add([]);
  for (var widget in widgets) {
    rows[row].add(Spacer());
    rows[row].add(
        Container(width: widgetWidth, height: widgetHeight, child: widget));
    if ((colCount == amountPerRow) && (totalCount != widgets.length)) {
      rows[row].add(Spacer());
      colCount = 1;
      row++;
      rows.add([]);
    } else {
      colCount++;
    }
    totalCount++;
  }
  rows[row].add(Spacer());

  List<Widget> mappedIntoRows = rows
      .map((v) => Container(
          height: rowHeight,
          child: Container(
              height: rowHeight + rowSpace, child: Row(children: v))))
      .toList();
  return Column(children: mappedIntoRows);
}