openBottom method

Implementation

void openBottom() {
  var constraints = widget.model.constraints;
  double h = constraints.maxHeight?? MediaQuery.of(context).size.height;
  double screenHeight = h;
  setState(() {
    animate = true;
    // fromLeft = fromRight = 0;
    // fromBottom = null;
    fromTop = widget.model.sizeBottom != null ? screenHeight - widget.model.sizeBottom! : 0;
    openSheet = 'bottom';
  });
}