up

app/src/main/res/layout/activity_main.xml

@@ -17,14 +17,14 @@
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 app:menu="@menu/activity_main_bnv"
-                tools:layout_editor_absoluteX="-16dp"
                 app:layout_constraintBottom_toBottomOf="parent"/>
 
         <androidx.viewpager.widget.ViewPager
                 android:id="@+id/view_pager_main"
                 android:layout_width="match_parent"
-                android:layout_height="wrap_content"
+                android:layout_height="0dp"
-                app:layout_constraintBottom_toTopOf="@+id/bottom_navigation_view"/>
+                app:layout_constraintBottom_toTopOf="@+id/bottom_navigation_view"
+                app:layout_constraintTop_toTopOf="parent"/>
 
     </androidx.constraintlayout.widget.ConstraintLayout>
 

app/src/main/res/menu/activity_main_bnv.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
       xmlns:tools="http://schemas.android.com/tools"
-      tools:showIn="navigation_view">
+      tools:showIn="bottom_navigation_view">
 
     <item
             android:id="@+id/nav_backup"