..

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

@@ -9,11 +9,34 @@
     android:orientation="vertical"
     android:id="@+id/mainFragmentsContainer"
     >
+    <FrameLayout
+        android:id="@+id/widget_container"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:clipChildren="false"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent" />
 
+    <TextView
+        android:id="@+id/delete_zone"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="삭제하려면 여기에 놓으세요"
+        android:textColor="#FFFFFF"
+        android:background="#99FF0000"
+        android:padding="20dp"
+        android:gravity="center"
+        android:visibility="gone"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:layout_marginTop="50dp"/>
 
     <androidx.fragment.app.FragmentContainerView
         android:id="@+id/fragment_container"
-        android:visibility="visible"
+        android:visibility="gone"
         android:layout_width="0dp"
         android:layout_height="0dp"
         app:layout_constraintTop_toTopOf="parent"

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

@@ -132,5 +132,6 @@
             android:progress="0"
             android:visibility="visible"
             android:indeterminate="false"/>
+
     </androidx.constraintlayout.widget.ConstraintLayout>
 </layout>