Android Android Studio

[sara20]

Buonasera ho questo problema sapete come posso risolvere?

 

[Not an engineer]

Sposto nella sezione corretta

 

[sara20]

Sposto nella sezione corretta

ah grazie e scusa pensavo andasse bene in java

 

[sara20]

Buongiorno ho un problema con android studio devo fare l'accesso ad in un app tramite google ho fatto in tal modo:

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");
        }
    }

}

Ma l'app si apre da una schermata nera è si chiude potete aiutarmi?