Tusky-App-Android/app/src/main/res/layout/activity_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:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.keylesspalace.tusky.MainActivity">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <ImageButton
            android:layout_width="?attr/actionBarSize"
            android:layout_height="?attr/actionBarSize"
            android:id="@+id/drawer_toggle"
            app:srcCompat="@drawable/ic_menu_24dp"
            app:layout_anchor="@id/pager"
            app:layout_anchorGravity="top|left"
            android:layout_alignParentTop="true"
            android:layout_alignParentStart="true"
            android:layout_alignParentLeft="true"
            style="?attr/image_button_style"
            android:background="?android:colorBackground"
            android:contentDescription="@string/action_open_drawer" />

        <android.support.design.widget.TabLayout
            android:id="@+id/tab_layout"
            android:layout_width="wrap_content"
            android:layout_height="?attr/actionBarSize"
            android:background="?android:colorBackground"
            app:tabGravity="fill"
            app:tabMaxWidth="0dp"
            app:tabPaddingEnd="1dp"
            app:tabPaddingStart="1dp"
            app:tabPaddingTop="4dp"
            app:tabTextAppearance="@style/TabLayoutTextStyle"
            android:layout_alignParentTop="true"
            android:layout_alignParentEnd="true"
            android:layout_alignParentRight="true"
            android:layout_toEndOf="@id/drawer_toggle"
            android:layout_toRightOf="@id/drawer_toggle">

            <android.support.design.widget.TabItem
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/title_home" />

            <android.support.design.widget.TabItem
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/title_notifications" />

            <android.support.design.widget.TabItem
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/title_public_local" />

            <android.support.design.widget.TabItem
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/title_public_federated" />

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

        <android.support.v4.view.ViewPager
            android:id="@+id/pager"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@id/tab_layout"
            android:layout_alignParentBottom="true" />

    </RelativeLayout>

    <View
        android:id="@+id/tab_bottom_shadow"
        android:layout_width="match_parent"
        android:layout_height="2dp"
        android:background="@drawable/material_drawer_shadow_bottom"
        android:visibility="visible"
        app:layout_anchor="@id/tab_layout"
        app:layout_anchorGravity="bottom" />

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/floating_btn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="16dp"
        android:clickable="true"
        android:contentDescription="@string/action_compose"
        app:layout_anchor="@id/pager"
        app:layout_anchorGravity="bottom|end"
        app:srcCompat="@drawable/ic_create_24dp" />

    <FrameLayout
        android:id="@+id/overlay_fragment_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

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