compareTo method

  1. @override
int compareTo(
  1. ChatContact other
)
override

Compares this object to another object.

Returns a value like a Comparator when comparing this to other. That is, it returns a negative integer if this is ordered before other, a positive integer if this is ordered after other, and zero if this and other are ordered together.

The other argument must be a value that is comparable to this object.

Implementation

@override
int compareTo(ChatContact other) {
  int? result;

  if (favoritePosition != null && other.favoritePosition == null) {
    return -1;
  } else if (favoritePosition == null && other.favoritePosition != null) {
    return 1;
  } else if (favoritePosition != null && other.favoritePosition != null) {
    result ??= other.favoritePosition!.compareTo(favoritePosition!);
  }

  result ??= name.val.compareTo(other.name.val);

  if (result == 0) {
    return id.val.compareTo(other.id.val);
  }

  return result;
}