How to change layout to standard layout without the top menu(empty)?

Hello, here is the layout
How to make a completely blank layout as I am working(for if when creating a project to specify a blank layout the application after you compile and install does not work....)
July 2nd 19 at 17:12
2 answers
July 2nd 19 at 17:14
July 2nd 19 at 17:16
This is not a menu, it's called the ActionBar, in this case this is not a standard ActionBar, and implemented using the AppCompat library to remove need to change the theme, open the style.xml and AppTheme.Base (or AppTheme) change the parent to Theme.AppCompat.NoActionBar or Theme.AppCompat.Light.NoActionBar.

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