apertura view da un bottone android java

[deleted_2024.08.22]

Salve,

Vorrei aprire una nuova finestra(classe Form) attraverso un bottone


public class MainActivity extends Activity   {

    protected void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        setContentView(R.layout.activity_main);

        final Button button = (Button) findViewById(R.id.form_button);
        button.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {

                // your handler code here
setContentView(R.layout.form);

final EditText edit_name = (EditText)findViewById(R.id.edit_name);
            final EditText edit_lastname = (EditText)findViewById(R.id.edit_lastname);
            Bundle bundle = new Bundle();
            bundle.putString("name", edit_name.getText().toString());
            bundle.putString("lastname", edit_lastname.getText().toString());
            Intent form_intent = new Intent(getApplicationContext(), Form.class);
            form_intent.putExtras(bundle);
            startActivity(form_intent);





            }
        });
    }

}

public class Form extends Activity {
    /** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.form);
        final TextView text_name = (TextView) findViewById(R.id.view_name);
        final TextView text_lastname = (TextView) findViewById(R.id.view_lastname);
        Bundle bundle = this.getIntent().getExtras();
        text_name.setText(bundle.getString("name"));
        text_lastname.setText(bundle.getString("lastname"));
    }
}

in modo tale da settare il nome inserito, ma dopo la pressione del bottone crasha.