Changing the item text size in navigation view

Question

I am creating a navigation drawer in android and I have added the items in menu_main.xml but I am not able to change the size of the menu items. Below is the code menu_main.

Answer 1

Adding on to Paresh's answer above,

Create your own style "NavigationViewStyle" as stated above

<style name="NavigationViewStyle">
     <item name="android:textSize">20sp</item> 
     <item name="android:listPreferredItemHeightSmall">40dp</item>
</style>

Apply it to your menu items

<android.support.design.widget.NavigationView
        .
        .
        app:itemTextAppearance="@style/NavigationViewStyle"
        . />

Answer 2

Create a style and apply it to NavigationView using app:theme

<style name="NavigationViewStyle">
     <item name="android:textSize">20sp</item> <!-- menu item text size-->
     <item name="android:listPreferredItemHeightSmall">40dp</item><!-- menu item height-->
</style>

And then as said, apply this style to NavigationView using app:theme

<android.support.design.widget.NavigationView
       ...
       ...    
        app:theme="@style/NavigationViewStyle"
       ...
       ...


</android.support.design.widget.NavigationView>