LottieSample/src/main/res/layout/fragment_player.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"
    android:id="@+id/coordinatorLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@android:color/white">
    <LinearLayout
        android:id="@+id/container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">
        <FrameLayout
            android:id="@+id/animationContainer"
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:layout_weight="1">

            <com.airbnb.lottie.LottieAnimationView
                android:id="@+id/animationView"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:background="@drawable/outline"
                app:lottie_autoPlay="true"/>

            <ProgressBar
                android:id="@+id/loadingView"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"/>

            <View
                android:layout_width="match_parent"
                android:layout_height="@dimen/divider_height"
                android:layout_gravity="bottom"
                android:background="@color/divider"/>
        </FrameLayout>

        <include layout="@layout/control_bar_speed" />
        <include layout="@layout/control_bar_scale" />
        <include layout="@layout/control_bar_background_color" />
        <include layout="@layout/control_bar_trim" />
        <include layout="@layout/control_bar_player_controls" />
        <include layout="@layout/control_bar" />
    </LinearLayout>

    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:layout_gravity="top"
        app:navigationIcon="@drawable/ic_nav_close_selector"
        app:title=""/>

    <include layout="@layout/bottom_sheet_render_times" />
    <include layout="@layout/bottom_sheet_warnings" />
    <include layout="@layout/bottom_sheet_key_paths" />
</android.support.design.widget.CoordinatorLayout>