When I disable the proguard in Android, Firebase Google Sign in works properly, but when I enable it, it won't works only when I signed bundle apk. In normal debug, it works. My Google Sign in code is here
package com.example.dhop.Activity;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;
import com.example.dhop.ModelClass.UpdateHelper;
import com.example.dhop.R;
import com.google.android.gms.auth.api.signin.GoogleSignIn;
import com.google.android.gms.auth.api.signin.GoogleSignInAccount;
import com.google.android.gms.auth.api.signin.GoogleSignInClient;
import com.google.android.gms.auth.api.signin.GoogleSignInOptions;
import com.google.android.gms.common.api.ApiException;
import com.google.android.gms.tasks.Task;
import com.google.firebase.auth.AuthCredential;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
import com.google.firebase.auth.GoogleAuthProvider;
import com.squareup.picasso.Picasso;
public class MainActivity extends AppCompatActivity {
static final int GOOGLE_SIGN_IN = 123;
FirebaseAuth mAuth;
Button btn_login, btn_logout;
TextView text;
ImageView image;
ProgressBar progressBar;
GoogleSignInClient mGoogleSignInClient;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn_login = findViewById(R.id.login);
btn_logout = findViewById(R.id.logout);
text = findViewById(R.id.text);
image = findViewById(R.id.image);
progressBar = findViewById(R.id.progress_circular);
mAuth = FirebaseAuth.getInstance();
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 -> SignInGoogle());
btn_logout.setOnClickListener(v -> Logout());
if (mAuth.getCurrentUser() != null) {
FirebaseUser user = mAuth.getCurrentUser();
updateUI(user); } }
public void SignInGoogle() {
progressBar.setVisibility(View.VISIBLE);
Intent signInIntent = mGoogleSignInClient.getSignInIntent();
startActivityForResult(signInIntent, GOOGLE_SIGN_IN); }
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()) {
progressBar.setVisibility(View.INVISIBLE);
Log.d("TAG", "signInWithCredential:success");
FirebaseUser user = mAuth.getCurrentUser();
updateUI(user);
} else {
progressBar.setVisibility(View.INVISIBLE);
Log.w("TAG", "signInWithCredential:failure",
task.getException());
Toast.makeText(MainActivity.this, "Authentication failed.",
Toast.LENGTH_SHORT).show();
updateUI(null); } }); }
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == GOOGLE_SIGN_IN) {
Task<GoogleSignInAccount> task = GoogleSignIn.getSignedInAccountFromIntent(data);
try {
GoogleSignInAccount account = task.getResult(ApiException.class);
` if (account != null) firebaseAuthWithGoogle(account); } catch (ApiException e) { Log.w("TAG", "Google sign in failed", e); } } }
`
private void updateUI(FirebaseUser user) {
if (mAuth.getCurrentUser() != null) {
Intent intent = new Intent(MainActivity.this,
` MainNavActivity.class);
startActivity(intent);
finish(); } else {
`
text.setText("Firebase Login \n");
Picasso.get().load(R.drawable.ic_firebase_logo).into(image);
image.setVisibility(View.VISIBLE);
btn_logout.setVisibility(View.INVISIBLE);
btn_login.setVisibility(View.VISIBLE); } }
private void Logout() {
FirebaseAuth.getInstance().signOut();
mGoogleSignInClient.signOut().addOnCompleteListener(this,
task -> updateUI(null)); }
