Android : How to return list item selected to parent activity - android

I'm learning android development. And I trying to do the following:

An wellcome activity, with a TextView with the following text: "Please Select"

This Textview, has an OnClick Listener setted.

My intent is, when the user click on this textview, one new activity with a listview must be opened.

This listview cointains some values like: Country 1, Country 2, Country 3 and so on;

So, when the user select one value, this value must be returned to the parent activity.

In my parent activity I have the following:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_login);

    countrySamples = (TextView)findViewById(R.id.countrySamples);
    countrySamples.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            ListCountrySelectedFragment whatKindOjectIsThis = new ListCountrySelectedFragment();
            whatKindOjectIsThis.setListCountrySelectedActivityDelegate(new ListCountrySelectedFragment.ListCountrySelectedActivityDelegate() {
                @Override
                public void selectCountry(String name) {
                    selectItem(name);
                }
            });

        }
    });
}

[...]

    public void selectItem(String name) {
    int index = valuesArray.indexOf(name);
    if (index != -1) {
        countryButton.setText(name);
    }
}

And I've created an blank fragment with a list.

And added the following code:

public static interface ListCountrySelectedActivityDelegate {
    public abstract void selectCountry(String name);
}

private ListCountrySelectedActivityDelegate delegate;

[...]

But, my fragment is never started.. The true is.. I have to create a Fragment to this? Or, must by an activity? Or I'm totally wrong?

Thanks