How to make the support Toolbar background transparent?

Question

Is there a way to make the new Android support Toolbar:

android.support.v7.widget.Toolbar

Have a transparent background?

I tried se

Answer 1

To answer Nicholas Pesa's question and maybe some others in the future you could set the alpha with a float by using a ratio, something like.

mToolbar.getBackground().setAlpha((int)(myFloatValue) * 255);