androidApp/src/main/res/drawable/checkerboard.xml

@@ -1,5 +0,0 @@
-<bitmap
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:dither="true"
-    android:src="@drawable/checktile"
-    android:tileMode="repeat"/>

androidApp/src/main/res/layout/fragment_image.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
@@ -9,8 +9,8 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:layout_centerVertical="true"
-        android:adjustViewBounds="true"
-        android:background="@drawable/checkerboard"
+        android:layout_centerHorizontal="true"
+        android:background="@android:color/black"
         app:srcCompat="@android:drawable/screen_background_dark" />
 
-</RelativeLayout>
+</androidx.coordinatorlayout.widget.CoordinatorLayout>