How to Replace Icon and title with a png logo

Question

By default the native ActionBar show app name with app icon on the left. I want to replace all this section with a custom logo

searching seems that I have to edit the styles.xml file to customize the action bar, but I haven't understood what is the right way and what resolution should have the logo.

Answer 1

"By default, the system uses your application icon in the action bar, as specified by the icon attribute in the <application> or <activity> element. However, if you also specify the logo attribute, then the action bar uses the logo image instead of the icon." source: http://developer.android.com/guide/topics/ui/actionbar.html

In order to remove the Title of the Activity you call ActionBar.setDisplayShowTitleEnabled(false);