Empty Space below the bottom bar in android

Question

Hi Guys In my project trying to implement Bottom Navigation with navigation drawer but after implementation, getting some empty space below bottom bar

any one idea on this, i struck here. help me

for Bottom Navigation i am using this https://github.com/roughike/BottomBar

xml code:
Main.xml:
<?xml version="1.0" encoding="utf-8"?>
<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">

    <include
        layout="@layout/app_bar_main"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <android.support.design.widget.NavigationView
        android:id="@+id/nav_view"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:fitsSystemWindows="true"
        app:itemBackground="@android:color/transparent"
        app:itemIconTint="@android:color/black"
        app:itemTextColor="@android:color/black">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical">

            <include layout="@layout/nav_header_main" />

            <ListView
                android:id="@+id/listView"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:divider="@null"
                android:dividerHeight="0dp"></ListView>
        </LinearLayout>

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

</android.support.v4.widget.DrawerLayout>][1]][1]

app_bar_main.xml:

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.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"
    android:fitsSystemWindows="true"
    tools:context="com.nisum.homeScreen.HomeActivity">

    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/AppTheme.AppBarOverlay">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:popupTheme="@style/AppTheme.PopupOverlay" />

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

    <android.support.v4.widget.NestedScrollView
        android:id="@+id/myScrollingContent"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:fitsSystemWindows="true">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:padding="16dp"
            android:text="@string/lorem_ipsum" />

    </android.support.v4.widget.NestedScrollView>

    <com.roughike.bottombar.BottomBar
        android:id="@+id/bottomBar"
        android:layout_width="match_parent"
        android:layout_height="60dp"
        android:layout_gravity="bottom"
        app:bb_activeTabColor="@android:color/holo_green_dark"
        app:bb_behavior="underNavbar|shy"
        app:bb_tabXmlResource="@xml/bottombar_tabs_three"
        app:bb_titleTextAppearance="@style/CustomTitleTextAppearance" />


<!--    <FrameLayout
        android:id="@+id/frame"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">
        </FrameLayout>-->


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

bottombar_tabs_three.xml:

<?xml version="1.0" encoding="utf-8"?>
<tabs>
    <tab
        id="@+id/tab_favorites"
        icon="@drawable/ic_favorites"
        title="Favorites" />
    <tab
        id="@+id/tab_nearby"
        icon="@drawable/ic_nearby"
        title="Nearby" />
    <tab
        id="@+id/tab_friends"
        icon="@drawable/ic_friends"
        title="Friends" />
</tabs>

Answer 1

Remove app:bb_behavior="underNavbar" from your xml