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Aritzbn
Asked: 2020-01-12 10:32:13 +0800 CST 2020-01-12 10:32:13 +0800 CST

Android: NullPointerException in .getIntent().getExtras()

  • 772

I am in an android class project and I have almost finished it but I need to pass some variables from one activity to another, it gives me NullPointerException and searching I have not found anything.

logcat

Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'android.os.Bundle android.content.Intent.getExtras()' on a null object reference at com.group3.cebancburger.AddBurger.(AddBurger.java:31 )

The attempt that I do in class.

MainActivity:

(The views)

nomb = (EditText)findViewById(R.id.nombre);
dire = (EditText)findViewById(R.id.direccion);
tele = (EditText)findViewById(R.id.telefono);
email = (EditText)findViewById(R.id.email);

(try)

intent = new Intent(DatosCliente.this, AnadirHamburguesa. 
intent.putExtra("nombre", nomb.getText().toString());
intent.putExtra("direccion", dire.getText().toString());
intent.putExtra("telefono", tele.getText().toString());
intent.putExtra("email", email.getText().toString());
startActivity(intent);

AddBurger(the getIntent)

Bundle extras = getIntent().getExtras();
String nom = extras.getString("nombre");
String dire = extras.getString("direccion");
String tele = extras.getString("telefono");
String email = extras.getString("email");
java

1 Answers

  1. Best Answer

    Try to retrieve the information in your AddBurger activity without using Bundle, as follows

    AddBurger

    Intent intent = getIntent();
String nombre = intent.getStringExtra("nombre");
String dire = intent.getStringExtra("direccion");    
...

    If you use Bundle to pass data you must create the Bundle and pass it in the intent

    Bundle bundle = new Bundle();
Intent intent = new Intent(DatosCliente.this, AnadirHamburguesa.class)
bundle.putString("nombre",nombre);
intent.putExtras(bundle);
startActivity(intent);

    In AddHamburger

    Bundle extras = getIntent().getExtras();
String nom = extras.getString("nombre");

    In the future try to use Parcelable or Serializable to pass objects from one activity to another. For example if you have an object of type Client that implements the Parcelable class

    Cliente cliente = new Cliente(nombre,direccion);

Intent intent = new Intent(getApplicationContext(, SigActividad.class);
intent.putExtra("cliente", cliente);
startActivity(intent);

    In NextActivity:

    Cliente cliente = getIntent().getExtras().getParcelable("nombre");
...
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