In Flutter How to add user id in firebase - flutter

Question

how to put the user id in this code when I am generating a to-do list and i need to retrieve the tasks that a certain user?
Future<void> create(String todo, String description) async {
try {
await firestore.collection("Todo").add({
'todo': todo,
'description': description,
'timestamp': FieldValue.serverTimestamp()
});
} catch (e) {
print(e);
}
}

Answer 1

i solved my issue
Future<void> create(String todo, String description) async {
String? Uid= FirebaseAuth.instance.currentUser!.uid;
print(Uid);
print(FirebaseAuth.instance.currentUser!.uid);
try {
await firestore
.collection("TodoList")
.doc(Uid)
.collection("Todo")
.add({
'todo': todo,
'description': description,
'timestamp': FieldValue.serverTimestamp()
});
} catch (e) {
print(e);
}
}

Answer 2

Future<void> signUpController(email, password, username, phone) async {
print("$email,$password,$username,$phone");
try {
CommanDialog.showLoading();
final credential =
await FirebaseAuth.instance.createUserWithEmailAndPassword(
email: email.trim(),
password: password,
);
print(credential);
CommanDialog.hideLoading();
try {
CommanDialog.showLoading();
var response =
await FirebaseFirestore.instance.collection('userlist').add({
'user_id': credential.user!.uid,
'user_name': username,
'phone': phone,
'password': password,
'joindate': DateTime.now().millisecondsSinceEpoch,
'email': email
});
print("response:: ${response.toString()}");
CommanDialog.hideLoading();
Get.back();
} catch (execption) {
CommanDialog.hideLoading();
print("error saving data ${execption}");
}
Get.back();
} on FirebaseAuthException catch (e) {
CommanDialog.hideLoading();
if (e.code == 'weak-password') {
CommanDialog.showErrorDialog(
description: "The password provided is too weak.");
print('The password provided is too weak.');
} else if (e.code == 'email-already-in-use') {
CommanDialog.showErrorDialog(
description: "The account already exists for that email.");
print('The account already exists for that email.');
}
} catch (e) {
CommanDialog.hideLoading();
CommanDialog.showErrorDialog(description: "something went wrong");
print(e);
}
}