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

Code only

Java:

Button button = (Button) findViewById(R.id.park);
button.setPaintFlags(button.getPaintFlags() | Paint.UNDERLINE_TEXT_FLAG);

Kotlin:

val button = findViewById(R.id.park);
button.paintFlags = button.paintFlags or Paint.UNDERLINE_TEXT_FLAG

Resource string with static text (xml only)

If you have a static text in your resources you could also use the following approach in your strings.xml:

I\'m underlined

Resource string with dynamic text (xml + code)

If you're using dynamic text but don't like the first approach (which isn't the best imho either), you could also use following:

strings.xml

%s

Java:

button.setText(getString(R.string.underlined_dynamic_text, "I'm underlined");

Kotlin:

button.text = getString(R.string.underlined_dynamic_text, "I'm underlined")