package com.example;
import android.content.Intent;
import androidx.appcompat.app.AppCompatActivity;
import com.example.google1.R;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
import com.google.android.gms.auth.api.Auth;
import com.google.android.gms.auth.api.signin.GoogleSignInAccount;
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.SignInButton;
import com.google.android.gms.common.api.GoogleApiClient;
public class MainActivity extends AppCompatActivity implements GoogleApiClient.OnConnectionFailedListener, View.OnClickListener {
private static final int RC_SIGN_IN = 9001;
private static final String TAG = "Oauth2Google";
private GoogleApiClient googleApiClient;
private TextView statusTextView;
private SignInButton signInButton;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
statusTextView = (TextView) findViewById(R.id.status);
GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN) // 1
.requestEmail()
.build();
googleApiClient = new GoogleApiClient.Builder(this) // 2
.enableAutoManage(this, this)
.addApi(Auth.GOOGLE_SIGN_IN_API, gso)
.build();
signInButton = (SignInButton) findViewById(R.id.sign_in_button);
signInButton.setOnClickListener(this);
}
@Override
public void onClick(View view) {
signIn();
}
private void signIn() {
Intent signInIntent = Auth.GoogleSignInApi.getSignInIntent(googleApiClient); // 3
startActivityForResult(signInIntent, RC_SIGN_IN);
}
@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
Log.d(TAG, "onConnectionFailed:" + connectionResult);
}
@Override
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); // 4
handleSignInResult(result);
}
}
private void handleSignInResult(GoogleSignInResult result) {
Log.d(TAG, "handleSignInResult:" + result.isSuccess());
if (result.isSuccess()) {
GoogleSignInAccount account = result.getSignInAccount();
statusTextView.setText("Signed as: " + account.getEmail());
signInButton.setVisibility(View.GONE);
} else {
statusTextView.setText("Signed in unsuccessfully");
}
}
}