Question

我试图将facebook登录添加到flutter firebase_auth plugin。

以下是现有的Google登录方法，运行正常：

private void handleSignInWithGoogle(MethodCall call, final Result result) {
  @SuppressWarnings("unchecked")
  Map<String, String> arguments = (Map<String, String>) call.arguments;
  String idToken = arguments.get("idToken");
  String accessToken = arguments.get("accessToken");
  AuthCredential credential = GoogleAuthProvider.getCredential(idToken, accessToken);
  firebaseAuth
        .signInWithCredential(credential)
        .addOnCompleteListener(activity, new SignInCompleteListener(result));
}

在这里，我添加了一个Facebook登录方法，该方法会产生以下错误：

private void handleSignInWithFacebook(MethodCall call, final Result result) {
  @SuppressWarnings("unchecked")
  Map<String, String> arguments = (Map<String, String>) call.arguments;
  String accessToken = arguments.get("accessToken");
  AuthCredential credential = FacebookAuthProvider.getCredential(accessToken);
  firebaseAuth
      .signInWithCredential(credential)
      .addOnCompleteListener(activity, new SignInCompleteListener(result));
}

以下是完整的PR和travis-ci上构建错误的链接：https://github.com/flutter/plugins/pull/184

以下是本地生成的错误：

/Users/frederickcook/GondolaProjects/Eng/plugins/packages/firebase_auth/android/src/main/java/io/flutter/firebaseauth/FirebaseAuthPlugin.java:120: error: cannot find symbol
AuthCredential credential = FacebookAuthProvider.getCredential(accessToken);
                            ^
symbol:   variable FacebookAuthProvider
location: class FirebaseAuthPlugin

以下是travis-ci的错误：https://travis-ci.org/flutter/plugins/builds/257319164

请注意，GoogleAuthProvider和FacebookAuthProvider都是firebase身份验证包中的类：https://firebase.google.com/docs/reference/android/com/google/firebase/auth/package-summary

Answer 1

还必须在文件头中添加

import com.google.firebase.auth.FacebookAuthProvider;以访问FacebookAuthProvider类。

firebase android facebookauthprovider无法找到符号

1 个答案: