How to style the Design Support library's NavigationView?

Question

So I'm using the NavigationView provided by Android Design Support Library

I can't seem to find examples on how to style it.

So far I have:

<android.support.design.widget.NavigationView
    android:id="@+id/navigation_view"
    android:layout_height="match_parent"
    android:layout_width="wrap_content"
    android:layout_gravity="start"
    app:headerLayout="@layout/header"
    app:menu="@menu/drawer"
    app:itemTextColor="@color/black"
    app:itemIconTint="@color/black"/>

Styling the header is easy as its under its own xml layout but the body is a menu resource file and not a layout.

• app:itemTextColor changes the text color
• app:itemIconTint changes the icon color
• app:itemBackground changes the item background color

So how to set

• selected item background
• selected item text color
• selected item icon tint

Answer 1

I have answered to a similar question Here.

Basically what you need do is , use a Color State List Resource. For that , first create a new xml (e.g drawer_item.xml) inside color directory (which should be inside res directory.) If you don't have a directory named color already , create one.

Now inside drawer_item.xml do something like this

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:color="checked state color" android:state_checked= "true" />
    <item android:color="your default color" />
</selector>

For itemBackground, a separate drawable needs to be placed inside drawable folder too. The name is same drawer_item. android:drawable property needs to be set instead of android:color for itemBackground:

<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item
       android:drawable="@drawable/shape_rectangle_checked"

        android:state_checked= "true" />
    <item android:drawable="@drawable/shape_rectangle" />

</selector>

File shape_rectangle:

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
     android:shape="rectangle">
<solid android:color="#ffffff" /> <!--white color -->
</shape>

File shape_rectangle_checked:

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
     android:shape="rectangle">
<solid android:color="#25aaf1" /> <!--blue color -->
</shape>

and then set in your navigationview like this

app:itemIconTint="@color/drawer_item" //notice here
app:itemTextColor="@color/drawer_item" //and here
app:itemBackground="@drawable/drawer_item"//and here for changing the background color of the item which is checked