ihimanshurawat

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".Login">

    <com.google.android.gms.common.SignInButton
        android:id="@+id/sign_in_button"

ihimanshurawat

class Login : AppCompatActivity() {

    //Google Login Request Code
    private val RC_SIGN_IN = 7
    //Google Sign In Client
    private lateinit var mGoogleSignInClient: GoogleSignInClient
    //Firebase Auth
    private lateinit var mAuth: FirebaseAuth