stickyParallaxHeaderUi

<?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"
    android:id="@+id/htab_maincontent"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true">


    <android.support.design.widget.AppBarLayout
        android:id="@+id/collapsing_toolbar_appbarlayout"
        android:layout_width="match_parent"
        android:layout_height="200dp">

        <!--  app:contentScrim : The Toolbar color when the
              collapsing toolbar is collapsed. -->
        <android.support.design.widget.CollapsingToolbarLayout
            android:id="@+id/collapsing_toolbar_layout"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
            app:layout_scrollFlags="scroll|exitUntilCollapsed">

            <!-- app:layout_collapseMode : parallax means an animation effect,
                 pin means fixed. -->


            <ImageView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:scaleType="centerCrop"
                android:src="@drawable/ic_parallax_two"
                app:layout_collapseMode="parallax"
                app:layout_collapseParallaxMultiplier="0.75" />
            

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

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

    <ProgressBar
        android:id="@+id/progress_bar"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center" />


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



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