The application icon does not show on action bar

Question

I followed up the instructions of building a new android project and I got a runnable one except a problem with action bar. The problem is that the application icon is not s

Answer 1

IN Style.xml

In activity add this and try

ActionBar mActionBar = getSupportActionBar();
mActionBar.setDisplayOptions(ActionBar.DISPLAY_HOME_AS_UP |
                             ActionBar.DISPLAY_SHOW_CUSTOM |
                             ActionBar.DISPLAY_SHOW_HOME);