moveFocus method

Implementation

void moveFocus(BuildContext context, bool forward) {
  // FocusNode? currentFocus = FocusManager.instance.primaryFocus;

  int currentIndex = -1;

  _indexes.forEach((key, val) {
    if (key.hasFocus) {
      currentIndex = val;
    }
  });

  if (currentIndex != -1) {
    List<int> allVal = _indexes.values.toList();
    if (allVal.isEmpty) return;
    allVal.sort((a, b) => a.compareTo(b));
    int nextVal = -1;
    bool finded = false;
    for (var val in allVal) {
      if (currentIndex != val && max(currentIndex, val) == val && !finded) {
        finded = true;
        nextVal = val;
      }
    }
    if (finded == false) {
      nextVal = allVal.first;
    }
    FocusNode? nextFocus;
    _indexes.forEach((key, val) => val == nextVal ? nextFocus = key : null);
    if (nextFocus != null) {
      // if (mainFocus != null) {
      //   mainFocus!.requestFocus(nextFocus);
      // } else {
      nextFocus!.requestFocus();
      FocusScope.of(context).requestFocus(nextFocus);
      //}
    }
  }
  // FocusNode? secondCurrentFocus = FocusManager.instance.primaryFocus;
  // var s = 3;
}