[FIXED] How to Make Android BottomNavigationView Background Transparent?

Issue

I have been trying to make the background of the BottomNavigationView transparent so that the background can be seen through it but when I try to set a background color with 0% alpha or a drawable with the same both programmatically and through xml, the background becomes like this:

BottomNavigationView Background with transparent colors:

I want the background completely transparent not like it is shown in the picture.

Here's the XML for the BottomNavigationView:

<com.google.android.material.bottomnavigation.BottomNavigationView
    android:id="@+id/bottom_nav"
    android:layout_width="match_parent"
    android:layout_height="?attr/actionBarSize"
    app:layout_scrollFlags="scroll|enterAlways"
    android:layout_gravity="bottom"
    app:menu="@menu/bottom_nav"
    android:background="#00000000"
    app:itemBackground="#00000000"
    app:itemIconTint="@color/hintcolor"
    app:itemTextColor="@android:color/white"
    app:itemHorizontalTranslationEnabled="false"/>

Here's the Code for the Whole XML File:

<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout 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:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".NavigationDrawerActivity">

    <com.google.android.material.appbar.AppBarLayout
        android:id="@+id/appBarLayout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_scrollFlags="scroll|enterAlways"
        android:theme="@style/AppTheme.AppBarOverlay">
        <androidx.appcompat.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:titleTextColor="?attr/text"
            app:layout_anchor="@+id/appBarLayout"
            app:layout_anchorGravity="center"
            app:popupTheme="@style/AppTheme.PopupOverlay" />
    </com.google.android.material.appbar.AppBarLayout>
    <include layout="@layout/content_navigation_drawer"/>
    <com.google.android.material.bottomnavigation.BottomNavigationView
        android:id="@+id/bottom_nav"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        app:layout_scrollFlags="scroll|enterAlways"
        android:layout_gravity="bottom"
        app:menu="@menu/bottom_nav"
        android:background="#00000000"
        app:itemBackground="#00000000"
        app:itemIconTint="@color/hintcolor"
        app:itemTextColor="@android:color/white"
        app:itemHorizontalTranslationEnabled="false"/>
</androidx.coordinatorlayout.widget.CoordinatorLayout>

Solution

That background overlay behind the title is because of elevation of bottom navaigtion bar. To remove it add this attribute.

app:elevation="0dp"
android:alpha="0.5"

Remove the background color which makes view transparent.

android:background="#00000000"

You can also try with

android:elevation="0dp"

Answered By - Rajasekhar
Answer Checked By - Willingham (JavaFixing Volunteer)