Este modelo não ficaria mais simplificado da forma abaixo ?

public class FormularioHelper {

/*    private  final EditText camponome;
/*    private  final EditText campoendereco;
/*    private  final EditText campocidade;
/*    private  final EditText campouf;
/*    private  final EditText campocep;
/*    private  final EditText campofone;
/*    private  final EditText camposite;
/*    private  final RatingBar camponota;
*/
    private  EditText camponome;
    private  EditText campoendereco;
    private  EditText campocidade;
    private  EditText campouf;
    private  EditText campocep;
    private  EditText campofone;
    private  EditText camposite;
    private  RatingBar camponota;

    /*
    public FormularioHelper(FormularioActivity activity){
        camponome     = (EditText) activity.findViewById ( R.id.formulario_nome );
        campoendereco = (EditText) activity.findViewById ( R.id.formulario_endereco );
        campocidade   = (EditText) activity.findViewById ( R.id.formulario_cidade );
        campouf       = (EditText) activity.findViewById ( R.id.formulario_uf );
        campocep      = (EditText) activity.findViewById ( R.id.formulario_cep );
        campofone     = (EditText) activity.findViewById ( R.id.formulario_fone );
        camposite     = (EditText) activity.findViewById ( R.id.formulario_site );
        camponota     = (RatingBar) activity.findViewById ( R.id.formulario_nota );
    }

    public Aluno pegaAluno() {
    */
    public Aluno pegaAluno (FormularioActivity activity) {
        camponome     = (EditText) activity.findViewById ( R.id.formulario_nome );
        campoendereco = (EditText) activity.findViewById ( R.id.formulario_endereco );
        campocidade   = (EditText) activity.findViewById ( R.id.formulario_cidade );
        campouf       = (EditText) activity.findViewById ( R.id.formulario_uf );
        campocep      = (EditText) activity.findViewById ( R.id.formulario_cep );
        campofone     = (EditText) activity.findViewById ( R.id.formulario_fone );
        camposite     = (EditText) activity.findViewById ( R.id.formulario_site );
        camponota     = (RatingBar) activity.findViewById ( R.id.formulario_nota );

        Aluno aluno = new Aluno();
        aluno.setNome (camponome.getText ().toString ());
        aluno.setEndereco (this.campoendereco.getText ().toString ());
        aluno.setCidade (this.campocidade.getText ().toString ());
        aluno.setCep  (this.campocep.getText ().toString () );
        aluno.setUf   (this.campouf.getText ().toString ());
        aluno.setFone (this.campofone.getText ().toString ());
        aluno.setSite (this.camposite.getText ().toString ());
        aluno.setNota (Double.valueOf (this.camponota.getProgress ()));
        return aluno;
    }
}

public class FormularioActivity extends AppCompatActivity {

    private FormularioHelper helper;

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate ( savedInstanceState );
        setContentView ( R.layout.activity_formulario );

     /*   helper = new FormularioHelper (this);
    */
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflater = getMenuInflater ();
        inflater.inflate ( R.menu.menu_formulario, menu );

        return super.onCreateOptionsMenu ( menu );
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId ()) {
            case R.id.menu_formulario_ok:

                FormularioHelper helper = new FormularioHelper ();

                Aluno aluno = helper.pegaAluno(this);

                Toast.makeText(FormularioActivity.this, "Gravando " + aluno.getNome (), Toast.LENGTH_SHORT).show();

                finish();
                break;

        }
        return super.onOptionsItemSelected ( item );
    }
}