calculatePosition method
Implementation
List<double?> calculatePosition(Alignment alignment) {
double? left, right, top, bottom;
if (alignment == Alignment.topLeft) {
left = 0;
} else if (alignment == Alignment.topRight) {
right = 0;
} else if (alignment == Alignment.bottomLeft) {
bottom = 0;
} else if (alignment == Alignment.bottomRight) {
right = 0;
bottom = 0;
}
return [left, right, top, bottom];
}