How to change home as up resource programmatically?

Question

I know how to change the homeAsUpIndicator in the styles xml file. The question is how to change it programmatically.

The reason I want to do it bec

Answer 1

The solution by @matthias doesn't work on all devices, A better solution to change the homeAsUpIndicator is to set it @null in style and change the logo resource programmatically.

Below is my code from style.xml

In code you can change the logo using setLogo() method.

getSupportActionBar().setLogo(R.drawable.abc_ic_ab_back_holo_light); //for ActionBarCompat
getActionBar().setLogo(R.drawable.abc_ic_ab_back_holo_light); //for default actionbar for post 3.0 devices

Also note that the Android API 18 has methods to edit the homeAsUpIndicator programatically, refer documentation.