Android - Achieving line break in XML string with String.format()?

This is my xml string...

<string name="my_string">First line.\nSecond line: %1$s.\nThird line.</string>

...which I need to run through String.format without losing the line breaks.

How do I achieve that?

Here is my Java code...

String text = String.format(getString(R.string.my_string, "some text");
Spanned html = Html.fromHtml(text, this, null);
textView.setText(html);

In the xml file, I have tried using \n and <br /> and actual new lines, but none of them produce line breaks in the textView on the UI.