如何在 flutter 中没有未来构建器的情况下从 Firestore 获取单个用户数据

Question

I have this in my Auth Controller

  Future<Member?> readLoggedMemberonly() async {
    final User? user = Auth().currentUser;
    final mid = user?.uid;
    final docMember =
        FirebaseFirestore.instance.collection('users').doc(mid.toString());

    final snapshot = await docMember.get();

    if (snapshot.exists) {
      return Member.fromJson(snapshot.data()!);
    } else {
      return null;
    }
  }

and in my View I have this

  final mem = Auth().readLoggedMemberonly;

Now I want to access users data like name

I tried with

 child: Text(mem?.name), //name was declared in the model and it exits in the firestore users document

But got this error

this after removing const from Drawer

Answer 1

  final mem = Auth().readLoggedMemberonly;

if you want to call a function you have to add brackets

  final mem = Auth().readLoggedMemberonly();

Then, its future, so probably you want to await for it

  final mem = await Auth().readLoggedMemberonly();

then you can use your value

  Text(mem?.name ?? '');