feat/landscape Main Layout

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

@@ -9,7 +9,6 @@
     tools:context=".MainActivity"
     >
 
-
     <com.google.android.material.bottomappbar.BottomAppBar
         android:id="@+id/bottomAppBar"
         android:layout_width="match_parent"
@@ -17,9 +16,14 @@
         android:layout_gravity="bottom"
         app:fabCradleMargin="10dp"
         app:fabCradleRoundedCornerRadius="50dp"
+        app:hideOnScroll="true"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/nav_host_fragment_activity_main"
 
+        app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
 
-        >
         <com.google.android.material.bottomnavigation.BottomNavigationView
             android:id="@+id/nav_view"
             app:itemIconTint="@drawable/bottom_nav_icon_color_selector"
@@ -42,26 +46,20 @@
         android:src="@drawable/ic_document_scanner_24"
         app:layout_anchor="@id/bottomAppBar"
         app:backgroundTint="@color/gold"
-
-        />
+        app:layout_constraintBottom_toTopOf="@id/bottomAppBar"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toEndOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/nav_host_fragment_activity_main" />
 
     <fragment
         android:id="@+id/nav_host_fragment_activity_main"
         android:name="androidx.navigation.fragment.NavHostFragment"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        app:defaultNavHost="true"
-        app:layout_constraintBottom_toTopOf="@id/nav_view"
-        app:layout_constraintHorizontal_bias="0.0"
-        app:layout_constraintLeft_toLeftOf="parent"
-        app:layout_constraintRight_toRightOf="parent"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        app:layout_constraintBottom_toTopOf="@id/bottomAppBar"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintVertical_bias="0.0"
         app:navGraph="@navigation/mobile_navigation" />
-    
-
-
-
-
 
-</androidx.coordinatorlayout.widget.CoordinatorLayout>
\ No newline at end of file
+</androidx.coordinatorlayout.widget.CoordinatorLayout>