[Android] Login Facebook with Parse

FacebookLoginActivity.java

public class FacebookLoginActivity extends Activity {
  private Button mLoginButton;
    
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_facebook_login);

    mLoginButton = findViewById(R.id.login_button);
    mLoginButton.setOnClickListener(new View.OnClickListener() {
      
      @Override
      public void onClick(View v) {

        ParseFacebookUtils.logIn(this, new LogInCallback() {
                    
          @Override
          public void done(ParseUser user, ParseException err) {
            if (user == null) {
              Log.d(TAG, "Uh oh. The user cancelled the Facebook login.");
            } else if (user.isNew()) {
              Log.d(TAG, "User signed up and logged in through Facebook!");
            } else {
              Log.d(TAG, "User logged in through Facebook!");
            }
          }
        });
      }
    });
  }
  
  @Override
  public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    ParseFacebookUtils.finishAuthentication(requestCode, resultCode, data);
  }

}