Android Tutorial - Google signin integration on android

Introduction

This topic is based on How to integrate google sign-in, On android apps

Integration of google Auth in your project. (Get a configuration file)

First get the Configuration File for Sign-in from

Open link below

[https://developers.google.com/identity/sign-in/android/start-integrating][1]

click on get A configuration file

Enter App name And package name and click on choose and configure services
provide SHA1 Enable google SIGNIN and generate configuration files

Download the configuration file and place the file in app/ folder of your project

Add the dependency to your project-level build.gradle:

classpath 'com.google.gms:google-services:3.0.0'

Add the plugin to your app-level build.gradle:(bottom)

apply plugin: 'com.google.gms.google-services'

add this dependency to your app gradle file

dependencies { compile 'com.google.android.gms:play-services-auth:9.8.0' }

In your sign-in activity's onCreate method, configure Google Sign-In to request the user data required by your app.

 GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
        .requestEmail()
        .build();

create a GoogleApiClient object with access to the Google Sign-In API and the options you specified.

 mGoogleApiClient = new GoogleApiClient.Builder(this)
        .enableAutoManage(this /* FragmentActivity */, this /* OnConnectionFailedListener */)
        .addApi(Auth.GOOGLE_SIGN_IN_API, gso)
        .build();

Now When User click on Google signin button call this Function.

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

implement OnActivityResult to get the response.

 @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);
    }
}

Last step Handle The Result and get User Data

 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(getString(R.string.signed_in_fmt, acct.getDisplayName()));
     updateUI(true);
 } else {
     // Signed out, show unauthenticated UI.
     updateUI(false);
 }
}

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Android

Android Google signin integration on android

Introduction

Integration of google Auth in your project. (Get a configuration file)

Code Implementation Google SignIn