How can I change the NavigationView's item text size?

Question

Google recently released the android.support.design.widget.NavigationView widget as part of the com.android.support:design:22.2.0 library, which gr

Answer 1

Goto activity_main.xml and select nav_view in design and you can change menu item text size by updating itemTextAppearance and itemTextColor like as follows

Answer 2

This worked for me:

activity_main.xml

<android.support.design.widget.NavigationView
    android:id="@+id/navigation_view"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:layout_gravity="start"
    android:theme="@style/NavigationDrawerStyle"
    app:headerLayout="@layout/navdrawer_header"
    app:menu="@menu/navdrawer_menu" />

styles.xml

<style name="NavigationDrawerStyle">
    <item name="android:textSize">16sp</item>
</style>

Answer 3

You can customize everything from text color to size and font in your style.xml

<style name="NavDrawerTextStyle" parent="Base.TextAppearance.AppCompat">
    <item name="android:textColor">@color/colorPrimaryDark</item>
    <item name="android:textSize">16sp</item>
    <item name="android:textStyle">bold</item>
</style>

and then in your NavigationView:

<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">

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

Answer 4

Scouring through the source code I found this layout file

/platform/frameworks/support/.../design/res/layout/design_drawer_item.xml

with the following attribute

<android.support.design.internal.NavigationMenuItemView
    ...
    android:textAppearance="?attr/textAppearanceListItem"

Which meant all we had to do was to override the textAppearanceListItem style in our project.

---

res/values/styles.xml

<style name="AppTheme" ... >
    ...
    <item name="textAppearanceListItem">@style/list_item_appearance</item>
</style>

<style name="list_item_appearance">
    <item name="android:textSize">14sp</item>
    <item name="android:fontFamily">sans-serif-medium</item>
</style>

I'm not totally sure what else this will affect but if anyone has a better answer I'd be happy to accept that instead!