android – MVP,在销毁时将演示者的视图设置为null？

这是我的主要活动：

public class MainActivity extends AppCompatActivity implements MainView {
private Button loadUser;
private TextView mTextView;
@Inject
IMainPresenter mPresenter;

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

    ((MyApp) getApplication()).getAppComponent().inject(this);
    mPresenter.setView(this);
}

private void setUpViews() {
    loadUser = (Button) findViewById(R.id.getUserBtn);
    loadUser.setOnClickListener(new View.onClickListener() {
        @Override
        public void onClick(View view) {
            mPresenter.loadUserName(2);
        }
    });
    mTextView = (TextView) findViewById(R.id.userNameTextView);
}

@Override
public void setUserName(String userName) {
    mTextView.setText(userName);
}

@Override
protected void onDestroy() {
    super.onDestroy();
    mPresenter.setView(null);
}
}