Cloud endpoints authentication failure in android app

Question

I\'m having trouble with my first attempt to use authentication in debug mode in a Google Cloud Endpoints android app. I set up credentials like this:

creden         


        

Answer 1

I wish this might help you.

import android.accounts.Account;
import android.app.Activity;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.FragmentActivity;

import com.google.android.gms.auth.GoogleAuthException;
import com.google.android.gms.auth.GoogleAuthUtil;
import com.google.android.gms.auth.api.Auth;
import com.google.android.gms.auth.api.signin.GoogleSignInOptions;
import com.google.android.gms.auth.api.signin.GoogleSignInResult;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.urbanft.utils.AppToast;

import java.io.IOException;

/**
 * Created by kiwitech on 13/10/16.
 */

public class GoogleLogin extends FragmentActivity implements GoogleApiClient.OnConnectionFailedListener {

    private GoogleSignInOptions gso;
    protected GoogleApiClient mGoogleApiClient;
    private int RC_SIGN_IN = 100;
    public static String GOOGLE_ACCESS_TOKEN = "google_access_token";
    public static String GOOGLE_USER_ID = "google_user_id";
    private String mGooglesUserId;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        initialize();
    }

    private void initialize(){
        gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
                .requestEmail()
                .build();

        mGoogleApiClient = new GoogleApiClient.Builder(this)
                .enableAutoManage(this , this)
                .addApi(Auth.GOOGLE_SIGN_IN_API, gso)
                .build();
    }

    protected void goForGoogleSignIn(){
        Intent signInIntent = Auth.GoogleSignInApi.getSignInIntent(mGoogleApiClient);
        startActivityForResult(signInIntent, RC_SIGN_IN);
    }

    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == RC_SIGN_IN) {
            GoogleSignInResult result = Auth.GoogleSignInApi.getSignInResultFromIntent(data);
            if(result.isSuccess()){
                AppToast.showToast(this,"Google sign-in success");
                mGooglesUserId = result.getSignInAccount().getId();
                new LocalAsyncTask(result.getSignInAccount().getEmail()).execute();
            }else{
                AppToast.showToast(this,"Google sign-in failure");
                onBackPressed();
                finish();
            }
        }
    }

    class LocalAsyncTask extends AsyncTask {

        private String email;

        LocalAsyncTask(String email) {
            this.email = email;
        }

        @Override
        protected String doInBackground(String... params) {
            String token = null;
            try {
                String SCOPE = "oauth2:https://www.googleapis.com/auth/userinfo.profile";
                Account account = new Account(email, "com.google");
                token = GoogleAuthUtil.getToken(GoogleLogin.this, account, SCOPE);
            } catch (IOException e) {
                e.printStackTrace();
            } catch (GoogleAuthException e) {
                e.printStackTrace();
            }
            return token;
        }

        @Override
        protected void onPostExecute(String s){
            Intent intent =new Intent();
            intent.putExtra(GOOGLE_ACCESS_TOKEN,s);
            intent.putExtra(GOOGLE_USER_ID,mGooglesUserId);
            setResult(Activity.RESULT_OK, intent);
            onBackPressed();
            finish();
        }
    }

    @Override
    public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
    }
}