AdView and FloatingActionButton overlap while using CoordinatorLayout

Question

After incorporating the new CoordinatorLayout in one of my layouts, I have an issue with Adviews overlapping with FloatingActionButton.

Answer 1

After posting, I decided to try and wrap the entire CoordinatorLayout layout in a LinearLayout and it seems to work well. Maybe someone knows of a better way?

I am not sure this is the best way as there are many nested views:

<LinearLayout 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"
              android:orientation="vertical"
              tools:context=".activities.MainActivity">
<android.support.design.widget.CoordinatorLayout
    android:id="@+id/main_content"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        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/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
            app:layout_scrollFlags="scroll|enterAlways" />

        <android.support.design.widget.TabLayout
            android:id="@+id/tabs"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />

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

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

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="end|bottom"
        android:layout_margin="@dimen/fab_margin"
        android:src="@drawable/ic_done" />

    <com.google.android.gms.ads.AdView
        android:id="@+id/ad_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center|bottom"
        app:adSize="SMART_BANNER"
        app:adUnitId="@string/app_ad" />

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

Answer 2

Probably not what you were looking for, but you can at least align the FloatingActionButton, like so

<com.google.android.gms.ads.AdView
    android:id="@+id/ad_view"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center|bottom"
    app:adSize="SMART_BANNER"
    app:adUnitId="@string/app_ad" />

<android.support.design.widget.FloatingActionButton
    android:id="@+id/fab"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_margin="@dimen/fab_margin"
    android:src="@drawable/ic_done"
    app:layout_anchor="@id/adView"
    app:layout_anchorGravity="top|end|right"
/>

As the CoordinatorLayout is a FrameLayout, you want to have the fab after the AdView, as

Child views are drawn in a stack, with the most recently added child on top