小编Ale*_*Ali的帖子

我尝试将 Android 项目连接到 Firebase，但在将以下内容添加到 pubsec.yaml 时出现此错误：

firebase_auth: ^0.16.0
cloud_firestore: ^0.13.5

当我运行 gradle 但它不起作用时

Plugin project :firebase_core_web not found. Please update settings.gradle.
Plugin project :firebase_auth_web not found. Please update settings.gradle.
Plugin project :cloud_firestore_web not found. Please update settings.gradle.

有什么解决办法吗

我尝试运行该应用程序，但收到以下错误：

Compiler message:
../../../Developer/flutter/.pub-cache/hosted/pub.dartlang.org/rate_my_app-0.6.0+2/lib/src/dialogs.dart:272:17: Error: No named parameter with the name 'onRatingChanged'.
                onRatingChanged: (rating) {
                ^^^^^^^^^^^^^^^
../../../Developer/flutter/.pub-cache/hosted/pub.dartlang.org/smooth_star_rating-1.1.0+1/lib/smooth_star_rating.dart:23:3: Context: Found this candidate, but the arguments don't match.
  SmoothStarRating({
  ^^^^^^^^^^^^^^^^
Target kernel_snapshot failed: Exception: Errors during snapshot creation: null
build failed.

FAILURE: Build failed with an exception.

* Where:
Script '/Users/ahmed/Developer/flutter/packages/flutter_tools/gradle/flutter.gradle' line: 896

* What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
> Process 'command '/Users/ahmed/Developer/flutter/bin/flutter'' finished with non-zero exit value 1

* Try:
Run with --stacktrace option to get the stack …

我是 Flutter 新手，我遇到一个问题，因为我想使用从 Numbers() 函数传递的值更新 Text 小部件。

问题是当我按下按钮时，文本中的值在屏幕上不会改变，但在控制台中会改变。

class _HomeState extends State<Home> {


int n = 10;

  @override
  Widget build(BuildContext context) {
    return Scaffold(

  backgroundColor: Colors.deepPurpleAccent,
  body: Center(
    child: Column(
      mainAxisAlignment: MainAxisAlignment.center,
      children: [

        Text(n.toString()),

        RaisedButton(
          onPressed: (){
            n += numbers();
            print(n.toString());
          },
        ),
      ],
    ),
  ),
);
  }
}
int numbers (){

  List<int> numbersList = List(1);

  numbersList[0] = 30;

  int n1 = numbersList[0];

  return n1;

  print(numbersList[0].toString());
}

我正在颤振中制作注册和登录页面并面临一个问题，因为我想使用在 main.dart 文件中的类 _MyHomePage 中声明的相同变量“电子邮件”和“密码”

到 signup.dart 文件中的另一个类 SignupPage。

我已经导入了文件，但我不能在两个类中使用这些值

class _MyHomePageState extends State<MyHomePage> {
 int _counter = 0;

String _email = '';
String _password = '';

final formKey = new GlobalKey<FormState>();

FormType _formType = FormType.login;

bool validateAndSave() {
final form = formKey.currentState;
if (form.validate()) {
  form.save();
  return true;
 //      print('Form is Valid  Email: $_email, Password: $_password');
}
return false;
}

我尝试将用户存储在 Firestore 中的集合中作为文档，并希望使每个用户 ID 与文档 ID 相同。我尝试过，但它仍然为我提供了另一个用户 ID：

Future<void> userSetupDone() async {
CollectionReference users = FirebaseFirestore.instance.collection('Users');

final docUser = FirebaseFirestore.instance.collection('Users').doc();

FirebaseAuth auth = FirebaseAuth.instance;
String? uid = docUser.id;
// String? uid = auth.currentUser?.uid.toString();
String? email = auth.currentUser?.email.toString();
String? phone = auth.currentUser?.phoneNumber.toString();
String? displayName = auth.currentUser?.displayName.toString();

users.add({'Uid': uid, "Email": email, "Phone": phone, "Name": displayName});
return;
}