将TabLayout添加到锚定工具栏下方的CoordinatorLayout

Question

我正在尝试将TabLayout添加到这个不错的项目中：https://github.com/saulmm/CoordinatorBehaviorExample

当布局没有折叠时我成功了，但是当布局折叠时，TabLayout最初位于工具栏下，最后显示在前景中，并重叠工具栏。

我想要的是在布局折叠时让工具栏下方的TabLayout（类似于此https://github.com/vitovalov/TabbedCoordinatorLayout）。

这是我修改后的主要布局：

<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:ignore="RtlHardcoded"
    >

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

        <android.support.design.widget.CollapsingToolbarLayout
            android:id="@+id/main.collapsing"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:layout_scrollFlags="scroll|exitUntilCollapsed|snap"
            >

            <ImageView
                android:id="@+id/main.imageview.placeholder"
                android:layout_width="match_parent"
                android:layout_height="300dp"
                android:scaleType="centerCrop"
                android:src="@drawable/quila2"
                android:tint="#11000000"
                app:layout_collapseMode="parallax"
                app:layout_collapseParallaxMultiplier="0.9"
                />

            <FrameLayout
                android:id="@+id/main.framelayout.title"
                android:layout_width="match_parent"
                android:layout_height="100dp"
                android:layout_gravity="bottom|center_horizontal"
                android:background="@color/primary"
                android:orientation="vertical"
                app:layout_collapseMode="parallax"
                app:layout_collapseParallaxMultiplier="0.3"
                >

                <LinearLayout
                    android:id="@+id/main.linearlayout.title"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:orientation="vertical"
                    >

                    <TextView
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_gravity="center_horizontal"
                        android:gravity="bottom|center"
                        android:text="@string/quila_name"
                        android:textColor="@android:color/white"
                        android:textSize="30sp"
                        />

                    <TextView
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_gravity="center_horizontal"
                        android:layout_marginTop="4dp"
                        android:text="@string/quila_tagline"
                        android:textColor="@android:color/white"
                        />

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

        <android.support.design.widget.TabLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content">
            <android.support.design.widget.TabItem
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:text="Today"/>
            <android.support.design.widget.TabItem
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:text="Last Month"/>
            <android.support.design.widget.TabItem
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:text="Overall"/>
        </android.support.design.widget.TabLayout>

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


    <android.support.v4.widget.NestedScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:scrollbars="none"
        app:behavior_overlapTop="0dp"
        app:layout_behavior="@string/appbar_scrolling_view_behavior"

        >

        <android.support.v7.widget.CardView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="8dp"
            app:cardElevation="8dp"
            app:contentPadding="16dp"
            >

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:lineSpacingExtra="8dp"
                android:text="@string/lorem"
                android:textSize="18sp"
                />
        </android.support.v7.widget.CardView>


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

    <android.support.v7.widget.Toolbar
        android:id="@+id/main.toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:background="@color/primary"
        app:layout_anchor="@id/main.framelayout.title"
        app:theme="@style/ThemeOverlay.AppCompat.Dark"
        app:title=""
        >

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:orientation="horizontal"
            >

            <Space
                android:layout_width="@dimen/image_final_width"
                android:layout_height="@dimen/image_final_width"
                />

            <TextView
                android:id="@+id/main.textview.title"
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:layout_marginLeft="8dp"
                android:gravity="center_vertical"
                android:text="@string/quila_name2"
                android:textColor="@android:color/white"
                android:textSize="20sp"
                />

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

    <de.hdodenhof.circleimageview.CircleImageView
        android:layout_width="@dimen/image_width"
        android:layout_height="@dimen/image_width"
        android:layout_gravity="center_horizontal"
        android:src="@drawable/quila"
        app:border_color="@android:color/white"
        app:border_width="2dp"
        app:finalHeight="@dimen/image_final_width"
        app:finalYPosition="2dp"
        app:layout_behavior="saulmm.myapplication.AvatarImageBehavior"
        app:startHeight="2dp"
        app:startToolbarPosition="2dp"
        app:startXPosition="2dp"
        />
</android.support.design.widget.CoordinatorLayout>