java - 为什么我的 onActivityResult() 总是返回 false？

Question

我正在尝试为我的应用程序设置谷歌登录，但它总是失败，我点击一个按钮，弹出一个窗口，选择帐户，弹出一个 Toast 告诉我登录失败。我有什么办法可以解决这个问题？问题出在onActivityResult()方法和所说的 Toast 说“Auth went wrong”。我在整个互联网上进行了搜索，但没有找到解决方案，甚至没有找到发生这种情况的原因。第80行是这个 Task<GoogleSignInAccount> task = GoogleSignIn.getSignedInAccountFromIntent(data);

public class SignInActivity extends AppCompatActivity {

    static final int GOOGLE_SIGN_IN = 2;
    FirebaseAuth mAuth;
    Button btn_login;
    GoogleSignInClient mGoogleSignInClient;
    FirebaseAuth.AuthStateListener mAuthListener;

    @Override
    protected void onStart() {
        super.onStart();
        mAuth.addAuthStateListener(mAuthListener);
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_sign_in);

        btn_login = findViewById(R.id.login);
        mAuth = FirebaseAuth.getInstance();

        mAuthListener = new FirebaseAuth.AuthStateListener() {
            @Override
            public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
                if (firebaseAuth.getCurrentUser() != null) {
                    Switch();
                }
            }
        };

        GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
                .requestIdToken(getString(R.string.default_web_client_id))
                .requestEmail()
                .build();

        mGoogleSignInClient = GoogleSignIn.getClient(this, gso);

        btn_login.setOnClickListener(v -> signIn());
    }

    private void signIn() {
        Intent signInIntent = mGoogleSignInClient.getSignInIntent();
        startActivityForResult(signInIntent, GOOGLE_SIGN_IN);
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        // Result returned from launching the Intent from GoogleSignInApi.getSignInIntent(...);
        if (requestCode == GOOGLE_SIGN_IN) {
            Task<GoogleSignInAccount> task = GoogleSignIn.getSignedInAccountFromIntent(data);
            try {
                // Google Sign In was successful, authenticate with Firebase
                GoogleSignInAccount account = task.getResult(ApiException.class);
                firebaseAuthWithGoogle(account);
            } catch (ApiException e) {
                // Google Sign In failed, update UI appropriately
                Log.w("TAG", "Google sign in failed", e);
                Toast.makeText(SignInActivity.this, "Auth went wrong :/", Toast.LENGTH_SHORT).show();
                // ...
            }
        }
    }

    private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {
        Log.d("TAG", "firebaseAuthWithGoogle:" + acct.getId());
        AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);
        mAuth.signInWithCredential(credential)
                .addOnCompleteListener(this, task -> {
                    if (task.isSuccessful()) {
                        // Sign in success, update UI with the signed-in user's information
                        Log.d("TAG", "signInWithCredential:success");
                        FirebaseUser user = mAuth.getCurrentUser();
                        Toast.makeText(SignInActivity.this, "Success!", Toast.LENGTH_SHORT).show();
                        updateUI(user);
                        Switch();
                    } else {
                        // If sign in fails, display a message to the user.
                        Log.w("TAG", "signInWithCredential:failure", task.getException());
                        Toast.makeText(SignInActivity.this, "Authentication failed.", Toast.LENGTH_SHORT).show();
                        updateUI(null);
                    }
                });
    }
}

2019-03-23 12:13:35.569 6312-6312/com.charpik.agropomocnik W/TAG: Google sign in failed
    com.google.android.gms.common.api.ApiException: 10: 
        at com.google.android.gms.common.internal.ApiExceptionUtil.fromStatus(Unknown Source:4)
        at com.google.android.gms.auth.api.signin.GoogleSignIn.getSignedInAccountFromIntent(Unknown Source:8)
        at com.charpik.agropomocnik.SignInActivity.onActivityResult(SignInActivity.java:80)
        at android.app.Activity.dispatchActivityResult(Activity.java:7701)
        at android.app.ActivityThread.deliverResults(ActivityThread.java:5037)
        at android.app.ActivityThread.handleSendResult(ActivityThread.java:5084)
        at android.app.ActivityThread.-wrap20(Unknown Source:0)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2053)
        at android.os.Handler.dispatchMessage(Handler.java:108)
        at android.os.Looper.loop(Looper.java:166)
        at android.app.ActivityThread.main(ActivityThread.java:7529)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:245)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:921)

Answer 1

我使用最新版本的 appcompat 库修复了类似的问题。

implementation 'androidx.appcompat:appcompat:1.1.0-alpha03'

如果不是这种情况，请尝试不使用 requestIdToken(getString(R.string.default_web_client_id))。如果没有发生错误，您应该再次检查凭据部分。

检查这些:

• SHA-1 指纹是否正确？
• SHA-1 指纹是用于调试还是发布？
• 包名是否正确？
• 您是否使用了网络应用程序类型的客户端 ID？