startActivityForResult is deprecated Google Sign In

Question

I've been trying run the app through the emulator in Android Studio but it keeps on crashing, I figured this may be because the startActivityForResult is deprecated. What should be the new format for this?

private void signIn() {
        Intent signInIntent = mGoogleSignInClient.getSignInIntent();
        startActivityForResult(signInIntent, RC_SIGN_IN);

Here's the full activity:

public class MainActivity extends AppCompatActivity {

SignInButton signin;
private GoogleSignInClient mGoogleSignInClient;
static final int RC_SIGN_IN = 0;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    requestGoogleSignIn();
    signin.setOnClickListener(view -> signIn());



}
private void requestGoogleSignIn()
{
    GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
            .requestIdToken(getString(R.string.default_web_client_id))
            .requestEmail()
            .build();

    mGoogleSignInClient = GoogleSignIn.getClient(this, gso);
}

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

}