Google Sign In for android is not working, with a security warning

Question

I have been trying to add a Google Sign In activity to my app, but for some reason, not only I get a security warning on my phone before installing, it also doesn't log in although the sign in popup works.

Security Warning

Now here is my code (all made according to the " Integrating Google Sign-In into Your Android App " tutorial.

public class Multiplayer extends AppCompatActivity implements
    GoogleApiClient.OnConnectionFailedListener,
    View.OnClickListener {

private static final String TAG = "SignInActivity";
private static final int RC_SIGN_IN = 9001;

private GoogleApiClient mGoogleApiClient;
private TextView mStatusTextView;
private ProgressDialog mProgressDialog;

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

    // Views
    mStatusTextView = (TextView) findViewById(R.id.status);

    // Button listeners
    findViewById(R.id.sign_in_button).setOnClickListener(this);
    findViewById(R.id.sign_out_button).setOnClickListener(this);
    findViewById(R.id.disconnect_button).setOnClickListener(this);

    // [START configure_signin]
    // Configure sign-in to request the user's ID, email address, and basic
    // profile. ID and basic profile are included in DEFAULT_SIGN_IN.
    GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
            .requestEmail()
            .build();
    // [END configure_signin]

    // [START build_client]
    // Build a GoogleApiClient with access to the Google Sign-In API and the
    // options specified by gso.
    mGoogleApiClient = new GoogleApiClient.Builder(this)
            .enableAutoManage(this /* FragmentActivity */, this /* OnConnectionFailedListener */)
            .addApi(Auth.GOOGLE_SIGN_IN_API, gso)
            .build();
    // [END build_client]

    // [START customize_button]
    // Customize sign-in button. The sign-in button can be displayed in
    // multiple sizes and color schemes. It can also be contextually
    // rendered based on the requested scopes. For example. a red button may
    // be displayed when Google+ scopes are requested, but a white button
    // may be displayed when only basic profile is requested. Try adding the
    // Scopes.PLUS_LOGIN scope to the GoogleSignInOptions to see the
    // difference.
    SignInButton signInButton = (SignInButton) findViewById(R.id.sign_in_button);
    signInButton.setSize(SignInButton.SIZE_STANDARD);
    signInButton.setScopes(gso.getScopeArray());
    // [END customize_button]
}

@Override
public void onStart() {
    super.onStart();

    OptionalPendingResult<GoogleSignInResult> opr = Auth.GoogleSignInApi.silentSignIn(mGoogleApiClient);
    if (opr.isDone()) {
        // If the user's cached credentials are valid, the OptionalPendingResult will be "done"
        // and the GoogleSignInResult will be available instantly.
        Log.d(TAG, "Got cached sign-in");
        GoogleSignInResult result = opr.get();
        handleSignInResult(result);
    } else {
        // If the user has not previously signed in on this device or the sign-in has expired,
        // this asynchronous branch will attempt to sign in the user silently.  Cross-device
        // single sign-on will occur in this branch.
        showProgressDialog();
        opr.setResultCallback(new ResultCallback<GoogleSignInResult>() {
            @Override
            public void onResult(GoogleSignInResult googleSignInResult) {
                hideProgressDialog();
                handleSignInResult(googleSignInResult);
            }
        });
    }
}

// [START onActivityResult]
@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 == RC_SIGN_IN) {
        GoogleSignInResult result = Auth.GoogleSignInApi.getSignInResultFromIntent(data);
        handleSignInResult(result);
    }
}
// [END onActivityResult]

// [START handleSignInResult]
private void handleSignInResult(GoogleSignInResult result) {
    Log.d(TAG, "handleSignInResult:" + result.isSuccess());
    if (result.isSuccess()) {
        // Signed in successfully, show authenticated UI.
        GoogleSignInAccount acct = result.getSignInAccount();
        mStatusTextView.setText(acct.getDisplayName());
        updateUI(true);
    } else {
        // Signed out, show unauthenticated UI.
        updateUI(false);
    }
}
// [END handleSignInResult]

// [START signIn]
private void signIn() {
    Intent signInIntent = Auth.GoogleSignInApi.getSignInIntent(mGoogleApiClient);
    startActivityForResult(signInIntent, RC_SIGN_IN);
}
// [END signIn]

// [START signOut]
private void signOut() {
    Auth.GoogleSignInApi.signOut(mGoogleApiClient).setResultCallback(
            new ResultCallback<Status>() {
                @Override
                public void onResult(Status status) {
                    // [START_EXCLUDE]
                    updateUI(false);
                    // [END_EXCLUDE]
                }
            });
}
// [END signOut]

// [START revokeAccess]
private void revokeAccess() {
    Auth.GoogleSignInApi.revokeAccess(mGoogleApiClient).setResultCallback(
            new ResultCallback<Status>() {
                @Override
                public void onResult(Status status) {
                    // [START_EXCLUDE]
                    updateUI(false);
                    // [END_EXCLUDE]
                }
            });
}
// [END revokeAccess]

@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
    // An unresolvable error has occurred and Google APIs (including Sign-In) will not
    // be available.
    Log.d(TAG, "onConnectionFailed:" + connectionResult);
}

private void showProgressDialog() {
    if (mProgressDialog == null) {
        mProgressDialog = new ProgressDialog(this);
        mProgressDialog.setMessage("LOADING");
        mProgressDialog.setIndeterminate(true);
    }

    mProgressDialog.show();
}

private void hideProgressDialog() {
    if (mProgressDialog != null && mProgressDialog.isShowing()) {
        mProgressDialog.hide();
    }
}

private void updateUI(boolean signedIn) {
    if (signedIn) {
        findViewById(R.id.sign_in_button).setVisibility(View.GONE);
        // findViewById(R.id.sign_out_and_disconnect).setVisibility(View.VISIBLE);
        findViewById(R.id.comments).setVisibility(View.VISIBLE);
    } else {
        mStatusTextView.setText("SIGNED OUT");
        findViewById(R.id.sign_in_button).setVisibility(View.VISIBLE);
        // findViewById(R.id.sign_out_and_disconnect).setVisibility(View.GONE);
        findViewById(R.id.comments).setVisibility(View.GONE);
    }
}

@Override
public void onClick(View v) {
    switch (v.getId()) {
        case R.id.sign_in_button:
            signIn();
            break;
        case R.id.sign_out_button:
            signOut();
            break;
        case R.id.disconnect_button:
            revokeAccess();
            break;
    }
}
}

After I sign in with my Google account, the app acts as if I haven't done so.

Can someone tell me what am I doing wrong?

EDIT:

The solution rakesh kashyap provided did solve the security warning, but I still can't log in. Anyone can help with this to?

Answer 1

Before you can start integrating Google Sign-In in your own app, you must configure a Google API Console project and set up your Android Studio project.

Follow the steps in this url to get a json file and add it to your Android Studio /app folder.

https://developers.google.com/identity/sign-in/android/start-integrating

Since you haven't set up your app on Google console, you are seeing the security warning..