Flutter谷歌登录 - 邮箱数据返回null。以下是日志。非常感谢。
我使用Firebase。
我想要使用Google登录,但 AuthResult.user.email == null
------------------------日志错误----------------------------
D/FirebaseAuth( 5302): Notifying id token listeners about user ( 9uKLCYS4VwUbuu77KS27bWjKrlI2 ).
I/flutter ( 5302): Result : Poyraz Çakmak https://lh3.googleusercontent.com/a-/AAuE7mABS7DqwgoIHuFfIwNw_574FRdvxKuvVyNarFo0_w=s96-c null
I/flutter ( 5302): NoSuchMethodError: The method 'indexOf' was called on null.
I/flutter ( 5302): Receiver: null
I/flutter ( 5302): Tried calling: indexOf("@")
因为用户模型使用的是用户名格式。=>尝试调用:indexOf("@")
GoogleSignIn方法:
@override
Future<User> login() async {
final GoogleSignInAccount googleSignInAccount =
await MyToolsFirebase.googleSignIn.signIn();
if (googleSignInAccount != null) {
GoogleSignInAuthentication googleSignInAuthentication =
await googleSignInAccount.authentication;
final String idToken = googleSignInAuthentication.idToken;
final String accessToken = googleSignInAuthentication.accessToken;
if (idToken != null && accessToken != null) {
AuthResult authResult = await MyToolsFirebase.firebaseAuth
.signInWithCredential(GoogleAuthProvider.getCredential(
idToken: idToken, accessToken: accessToken));
return await MyToolsFirebase.saveDbUser(firebaseUser: authResult.user);
}
}
return null;
}
MyToolsFirebase类:
import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:firebase_auth/firebase_auth.dart';
import 'package:google_sign_in/google_sign_in.dart';
import 'package:live_chat/Models/User.dart';
class MyToolsFirebase {
static final FirebaseAuth firebaseAuth = FirebaseAuth.instance;
static final GoogleSignIn googleSignIn = GoogleSignIn(
scopes: <String>[
'https://www.googleapis.com/auth/contacts.readonly',
'https://www.googleapis.com/auth/plus.login',
'https://www.googleapis.com/auth/userinfo.email'
],
);
static final Firestore firestore = Firestore.instance;
static User userFromFirebaseUser({@required FirebaseUser firebaseUser}) {
if (firebaseUser == null) return null;
print("Result : ${firebaseUser.displayName} ${firebaseUser.photoUrl} ${firebaseUser.email}");
return User(
uid: firebaseUser.uid,
email: firebaseUser.email,
name: firebaseUser.displayName,
imageURL: firebaseUser.photoUrl,
);
}
static Future<User> saveDbUser({@required FirebaseUser firebaseUser}) async {
User user = userFromFirebaseUser(firebaseUser: firebaseUser);
Map userMap = user.toMap();
await firestore.collection("users").document(user.uid).setData(userMap);
return await getDbUser(user.uid);
}
static Future<User> getDbUser(String uid) async {
DocumentSnapshot documentSnapshot = await Firestore.instance.collection("users").document(uid).get();
print(User.fromMap(documentSnapshot.data).toString());
return User.fromMap(documentSnapshot.data);
}
}
用户模型:
class User {
final String uid;
String email;
String userName;
String name;
String imageURL;
int level;
DateTime createdAt;
DateTime updatedAt;
User({
@required this.uid,
@required this.email,
this.userName,
this.name,
this.imageURL,
this.level,
this.createdAt,
this.updatedAt,
});
User.fromMap(Map<String, dynamic> map)
: this.uid = map["uid"],
this.email = map["email"],
this.userName = map["userName"],
this.name = map["name"],
this.imageURL = map["imageURL"],
this.level = int.parse(map["level"]),
this.createdAt = (map["createdAt"] as Timestamp).toDate(),
this.updatedAt = (map["updatedAt"] as Timestamp).toDate();
Map<String, dynamic> toMap() {
DateTime now = DateTime.now().toLocal().toUtc();
return {
'uid': this.uid,
'email': this.email,
'userName': this.userName ?? this.email.substring(0, this.email.indexOf("@")) + Random().nextInt(1000).toString(),
'name': this.name,
'imageURL': this.imageURL ?? "https://www.logolynx.com/images/logolynx/61/61ba01858af7f2ea1184238e9f2771f2.png",
'level': this.level ?? 1,
'createdAt': this.createdAt ?? now,
'updatedAt': this.updatedAt ?? now,
};
}
}