gistfile1.txt

<?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"
    android:fitsSystemWindows="true"
    tools:context="biz.clickky.ads_sdk_tracker.myapplication.Main2Activity">

    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/AppTheme.AppBarOverlay">

        <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/AppTheme.PopupOverlay" />

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

  <android.support.v4.widget.NestedScrollView
      android:id="@+id/lvToDoList"
      android:layout_width="match_parent"
      android:layout_height="match_parent">

      <TextView
          android:text="lalallalalalalalallalalllalalalalallalaalalalalalalalalalallallalalalaalalalalalalalalallalalalalalalalalalalalallalalalalalallallalallalalalalalallalallalalalalalallalallalalalalalallalallalalalalalallalallalalalalalallalallalalalalalallalallalalalalalallalallalalalalalallalallalalalalalallalallalalalalalallalallalalalalalallalallalalalalalallalallalalalalalallalallalalalalalallalallalalalalalallalallalalalalalallalallalalalalalallalallalalalalalallalallalalalalalallalallalalalalalallalallalalalalalallalallalalalalalallalallalalalalalallalallalalalalalallalallalalalalalallalallalalalalalal"
          android:layout_width="match_parent"
          android:textSize="45sp"
          android:layout_height="wrap_content" />

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

    <FrameLayout
        android:id="@+id/fab"
        android:layout_width="match_parent"
        android:layout_height="60dp"
        android:background="@color/colorAccent"
        app:layout_anchor="@id/lvToDoList"
        app:layout_anchorGravity="bottom"
        app:layout_behavior="your_package.QuickReturnFloaterBehavior"
        app:srcCompat="@android:drawable/ic_dialog_email" />

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