How to reset a button's background color to default?

I read a couple of posts but none of them had the working solution.

Once you do

button.setBackgroundColor(0x00000000);

How do you revert the button's background color back to default color?

use:

btn.setBackgroundResource(android.R.drawable.btn_default);

If the background color was set using

btn.getBackground().setColorFilter(Color.RED, PorterDuff.Mode.MULTIPLY);

it can be reset using:

btn.getBackground().clearColorFilter();

In contrast to button.setBackgroundColor() setting the color this way preserves the button's shape.

Nobody mentioned TRANSPARENT use it like this

findViewById(R.id.button_id).setBackgroundColor(Color.TRANSPARENT);

Thank me later

this worked better for me :

Button defbtn=new Button(this);
btn.setBackground(defbtn.getBackground());