activity-with-image.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.rozkmin.flavorshowcase.MainActivity">

    <ImageView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/activity_main_image"/>

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:background="#8fffffff"
        android:textColor="#aa595959"
        android:textSize="40sp"
        style="@style/Base.Theme.AppCompat"
        android:id="@+id/activity_main_flavor"
        tools:text="Loaded with Glide"/>

</FrameLayout>