Как сделать обложку фрагмента AppBarLayout?

В настоящее время у меня есть приложение, в котором я вызываю фрагмент addTask после нажатия кнопки FAB. Я хотел бы, чтобы он охватил AppBarLayout, чтобы я мог вызвать другую панель инструментов с фрагментом. В настоящее время фрагмент размещается непосредственно под текущей панелью приложений.

Фрагмент подтягивается в FrameLayout. Я попытался удалить поведение прокрутки, потому что видел, как кто-то делал что-то подобное в другом сообщении, но тогда мой фрагмент вообще не отображается.

Main_Activity.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"
    tools:context = ".MainActivity">

    <android.support.design.widget.AppBarLayout
        android:id = "@+id/app_bar_layout"
        android:layout_width = "match_parent"
        android:layout_height = "wrap_content"
        android:fitsSystemWindows = "true"
        app:expanded = "false"
        app:layout_behavior = "com.timeblocks.timeblocks.ScrollingCalendarBehavior"
        android:theme = "@style/AppTheme.AppBarOverlay"
        >

        <android.support.design.widget.CollapsingToolbarLayout
        android:id = "@+id/collapsingToolbarLayout"
        android:layout_width = "match_parent"
        android:layout_height = "match_parent"
        android:fitsSystemWindows = "true"
        android:minHeight = "?attr/actionBarSize"
        app:contentScrim = "?attr/colorPrimary"
        app:layout_scrollFlags = "scroll|exitUntilCollapsed"
        app:statusBarScrim = "?attr/colorPrimaryDark">

            <LinearLayout
                android:id = "@+id/compactcalendar_view_container"
                android:layout_width = "match_parent"
                android:layout_height = "250dp"
                android:paddingTop = "?attr/actionBarSize"
                app:layout_collapseMode = "parallax"
                app:layout_collapseParallaxMultiplier = "1.0">

                <com.github.sundeepk.compactcalendarview.CompactCalendarView
                    android:id = "@+id/compactcalendar_view"
                    android:layout_width = "match_parent"
                    android:layout_height = "match_parent"
                    android:paddingLeft = "10dp"
                    android:paddingRight = "10dp"
                    app:compactCalendarBackgroundColor = "?attr/colorPrimary"
                    app:compactCalendarCurrentDayBackgroundColor = "#FFC107"
                    app:compactCalendarCurrentSelectedDayBackgroundColor = "#BBDEFB"
                    app:compactCalendarTextColor = "#fff"
                    app:compactCalendarTextSize = "12sp" />

            </LinearLayout>

            <android.support.v7.widget.Toolbar
                android:id = "@+id/toolbar"
                style = "@style/ToolbarStyle"
                android:layout_width = "match_parent"
                android:layout_height = "?attr/actionBarSize"
                app:layout_collapseMode = "pin"
                app:popupTheme = "@style/AppTheme.PopupOverlay"
                app:contentInsetStart = "0dp">


                <RelativeLayout
                    android:id = "@+id/date_picker_button"
                    android:layout_width = "wrap_content"
                    android:layout_height = "?attr/actionBarSize"
                    android:background = "?android:selectableItemBackground"
                    android:clickable = "true"
                    android:paddingLeft = "16dp"
                    android:paddingRight = "16dp"
                    android:orientation = "vertical"
                    android:focusable = "true">

                    <TextView
                        android:id = "@+id/date_picker_text_view"
                        android:layout_width = "100dp"
                        android:layout_height = "wrap_content"
                        android:textAppearance = "@style/TextAppearance.Widget.AppCompat.Toolbar.Subtitle"
                        android:textColor = "@android:color/white"
                        android:layout_alignParentBottom = "true"
                        android:layout_marginBottom = "6dp"/>

                    <ImageView
                        android:id = "@+id/date_picker_arrow"
                        android:layout_width = "wrap_content"
                        android:layout_height = "wrap_content"
                        android:layout_alignBottom = "@id/date_picker_text_view"
                        android:layout_toRightOf = "@id/date_picker_text_view"
                        app:srcCompat = "@drawable/ic_arrow_drop_down"
                        tools:ignore = "ContentDescription,RtlHardcoded" />

                </RelativeLayout>
            </android.support.v7.widget.Toolbar>

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

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


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

    <LinearLayout
        android:id = "@+id/fabTaskHolder"
        android:layout_width = "wrap_content"
        android:layout_height = "wrap_content"
        app:layout_anchor = "@id/fabEvent"
        android:layout_gravity = "top|end"
        android:visibility = "gone">

        <TextView
            android:layout_width = "wrap_content"
            android:layout_height = "wrap_content"
            android:paddingTop = "30dp"
            android:text = "Add Task"/>

        <android.support.design.widget.FloatingActionButton
            android:id = "@+id/fabTask"
            android:layout_width = "wrap_content"
            android:layout_height = "wrap_content"
            android:layout_margin = "@dimen/fab_margin"
            app:srcCompat = "@android:drawable/gallery_thumb"
            android:tint = "@android:color/white"/>

    </LinearLayout>

    <LinearLayout
        android:id = "@+id/fabEventHolder"
        android:layout_width = "wrap_content"
        android:layout_height = "wrap_content"
        app:layout_anchor = "@id/fab"
        android:layout_gravity = "top|end"
        android:visibility = "gone">

        <TextView
            android:layout_width = "wrap_content"
            android:layout_height = "wrap_content"
            android:paddingTop = "30dp"
            android:text = "Add Event"/>

        <android.support.design.widget.FloatingActionButton
            android:id = "@+id/fabEvent"
            android:layout_width = "wrap_content"
            android:layout_height = "wrap_content"
            android:layout_margin = "@dimen/fab_margin"
            app:srcCompat = "@android:drawable/ic_menu_my_calendar"
            android:tint = "@android:color/white"/>

    </LinearLayout>

    <android.support.design.widget.FloatingActionButton
        android:id = "@+id/fab"
        android:layout_width = "wrap_content"
        android:layout_height = "wrap_content"
        android:layout_gravity = "bottom|end"
        android:layout_margin = "@dimen/fab_margin"
        app:srcCompat = "@android:drawable/ic_input_add"
        android:tint = "@android:color/white" />

    <FrameLayout
        android:id = "@+id/frag_container"
        android:layout_width = "match_parent"
        android:layout_height = "match_parent"
        app:layout_behavior = "@string/appbar_scrolling_view_behavior"
        android:elevation = "6dp"
        >
    </FrameLayout>

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