What does LayoutInflater in Android do?
The LayoutInflater class is used to instantiate the contents of layout XML files into their corresponding View objects. In other words, it takes an XML file as input and builds the View objects from it.
layout-inflater
How to change the background color of the options menu?
After spending a considerable amount of time trying all the options, the only way I was able to get an app using AppCompat v7 to change the overflow menu background was using the itemBackground attribute: <style name=”AppTheme” parent=”Theme.AppCompat.Light.DarkActionBar”> … <item name=”android:itemBackground”>@color/overflow_background</item> … </style> Tested from API 4.2 to 5.0.