Question

抱歉，这里有新手问题。这是我的firebase_service.dart

import 'package:firebase/firebase.dart' as fb;
import 'package:firebase/firestore.dart' as fs;
import 'dart:async';
import 'package:angular/angular.dart';

@Injectable()
class FirebaseService {
  fb.User user;
  fs.DocumentReference reference;

  FirebaseService() {
    fb.initializeApp(
        apiKey: "xxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
        authDomain: "xxxxxx.firebaseapp.com",
        databaseURL: "https://xxxxxx.firebaseio.com",
        projectId: "xxxxxxx",
        storageBucket: "xxxxxxxxxxxx.appspot.com",
        messagingSenderId: "xxxxxxxxxx"
    );

    fb.auth().onAuthStateChanged.listen(_authChanged);
  }

    void _authChanged(fb.User event) => user = event;

  Future signIn() async {
    try {
      await fb.auth().signInWithPopup(new fb.GoogleAuthProvider());
    }
    catch (e) {
      print("$runtimeType::login() -- $e");
    }
  }

  void signOut() => fb.auth().signOut();

  Future submitName(id, name) async {
    reference = fb.firestore().doc('userdata/$id');
    try {
        await reference.set(id(name));
      } catch (e) {
        print('error submitting: $e');
      }
  }
}

我正在尝试通过调用

将用户名和用户ID提交到firestore

fbService.submitName(id, name);

但是我收到了这个错误

error submitting: NoSuchMethodError: method not found: 'call$1' (id.call$1 is not a function)

我不知道我的代码有什么问题。我试过寻找一些angulardart firestore教程，但没有运气。我使用的是dart-sdk 1.24.3，angular 4.0.0 + 2和firebase 4.4.0

我已尝试使用基于pub website

的内容

<script src="https://www.gstatic.com/firebasejs/4.10.1/firebase.js"></script>
<script src="https://www.gstatic.com/firebasejs/4.10.1/firebase-firestore.js"></script>

和这个

<script src="https://www.gstatic.com/firebasejs/4.11.0/firebase.js"></script>
<script src="https://www.gstatic.com/firebasejs/4.11.0/firebase-firestore.js"></script>

但仍然有同样的错误

Answer 1

您似乎缺少index.html

中的以下一个或两个脚本标记

<script src="https://www.gstatic.com/firebasejs/4.11.0/firebase.js"></script>
<script src="https://www.gstatic.com/firebasejs/4.11.0/firebase-firestore.js"></script>

Dart Firebase软件包只是JS实现的一个包装器，因此需要在从Dart中使用之前加载它。

angulardart firestore抛出错误“firebase.firestore不是函数”

1 个答案: