How to set an image for menu icon for “BottomNavigationView”, as it's displaying only image's design i.e. structure…?

Question

I want to set an particular image to my BottomNavigationView 's menu item , as when I set an image using drawable, its not working properly.

Can you also guide me as how to display back buttton for an activity...?

Here's my code.

selectedActivity.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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/container"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".selectedJokesActivity">

    <FrameLayout
        android:id="@+id/frame"
        android:layout_width="match_parent"
        android:layout_height="454dp">

    </FrameLayout>

    <android.support.design.widget.BottomNavigationView
        android:id="@+id/navigation"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginEnd="0dp"
        android:layout_marginStart="0dp"
        android:background="?android:attr/windowBackground"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:menu="@menu/navigation" />

</android.support.constraint.ConstraintLayout>

selectedActivity.xml

screenshot of my activity:-

Real device: Android Oreo

menu/navigation.xml :-

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <item
        android:id="@+id/navigation_home"
        android:icon="@drawable/digital"
        android:title="@string/title_home" />

    <item
        android:id="@+id/navigation_dashboard"
        android:icon="@drawable/ic_dashboard_black_24dp"
        android:title="@string/title_dashboard" />

    <item
        android:id="@+id/navigation_notifications"
        android:icon="@drawable/ic_notifications_black_24dp"
        android:title="@string/title_notifications" />

</menu>

Please help....

Answer 1

要获得图标图像的实际颜色或结构，请使用以下命令：

bottomNavigationView.setItemIconTintList(null);

Answer 2

How to set back button only at the action bar...?

Just add below line in onCreate()

getSupportActionBar().setDisplayHomeAsUpEnabled(true);

Answer 3

Try this hope this will work...!

Menu BVMenu = bottomNavigationView.getMenu();
BVMenu.setItemIconTintList(null);
BVMenu.findItem(R.id.Your_action_Name).setIcon(Drawable_Name);