New Resource dialog doesn't have Navigation resource type for navigation graph even after adding Navigation Architecture Component dependencies
def nav_version = '1.0.0-alpha01'
implementation "android.arch.navigation:navigation-fragment:$nav_version"
implementation "android.arch.navigation:navigation-ui:$nav_version"
Make sure that you checked the box Settings -> Experimental -> Enable Navigation Editor.
The Navigation Editor is an experimental feature, so you must first enable it by opening the IDE Settings/Preferences dialog, selecting Experimental in the left pane, and checking the box next to Enable Navigation Editor.
Help -> What's New in Android (Android Studio 3.2 Beta 1)
after that , restart Android Studio