How to add bottom view to a Coordinator Layout with view pager?

Question

I want to add a bottom view to a Coordinator layout with view pager in it , Bottom View will be on top of fragment loaded by view pager and independent of it .

I added a linear layout with

layout_gravity = "bottom"

but bottom view linear layout is not showing at all

Following is my xml layout of the activity.

<android.support.design.widget.CoordinatorLayout

xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">

<android.support.design.widget.AppBarLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

    <android.support.v7.widget.Toolbar
        android:id="@+id/maintoolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:background="?attr/colorPrimary"
        app:layout_scrollFlags="scroll|enterAlways"
        app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />
    <android.support.design.widget.TabLayout
        android:id="@+id/maintabs"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:tabMode="fixed"
        app:tabGravity="fill" />
</android.support.design.widget.AppBarLayout>





<android.support.v4.view.ViewPager
    android:id="@+id/mainviewpager"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"  />


<LinearLayout
    android:id="@+id/completeBottomView"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">

    <ProgressBar
        android:id="@+id/progressBarBottomView"
        style="?android:attr/progressBarStyleHorizontal"
        android:layout_width="match_parent"
        android:layout_height="5dp"
        android:indeterminate="false"
        android:visibility="gone"
        android:max="100"
        android:progress="1"/>

    <HorizontalScrollView
        android:id="@+id/limiter_scroller"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|start"
        android:background="#FF3399"
        >
        <LinearLayout
            android:id="@+id/limiter_layout"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:onClick="clickFromBottomView"/>
    </HorizontalScrollView>

</LinearLayout>

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

Answer 1

As pointed out in comment by @Dhawal ....Solution is to wrap LinearLayout completeBottomView in a FrameLayout with android:layout_gravity="bottom"