class Controller extends GetxController {
  int currentIdx = ''.obs;
  void updateInt(int idx) {
    currentIdx = idx.obs;
  }
}

here is my controller. Now I put this line a widget to get idx value and assign immediately to currentIdx value:

Controller().updateInt(idx);

but .obs lines gives error in this current structure.

when I change the controller:

class Controller extends GetxController {
  RxInt currentIdx = 0.obs;
  void updateInt(RxInt idx) {
    currentIdx = idx;
  }
}

this time Controller().updateInt(idx); gives error. (RxInt not compatible int value)

how can I handle this?

CodePudding user response：

You need to declare and use like that:

RxInt currentIdx = 0.obs;
void updateInt(int id) {
    currentIdx.value = id;
  }