How to Underline Text of Button in Android?

Question

I have a button which is transparent and has an icon and text.

I want to underline the text of the button but i have not been able to do this.

Below is my

Answer 1

Button button= (Button) findViewById(R.id.park);
SpannableString content = new SpannableString("Content");
content.setSpan(new UnderlineSpan(), 0, content.length(), 0);
button.setText(content);