Add swipe refresh.

app/build.gradle

@@ -84,4 +84,5 @@ dependencies {
     implementation 'androidx.navigation:navigation-fragment:2.3.5'
     implementation 'androidx.navigation:navigation-ui:2.3.5'
     implementation 'androidx.recyclerview:recyclerview:1.2.1'
+    implementation 'androidx.swiperefreshlayout:swiperefreshlayout:1.1.0'
 }

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

@@ -6,16 +6,17 @@
     android:layout_height="match_parent"
     tools:context=".MainActivity">
 
-    <androidx.recyclerview.widget.RecyclerView
-        android:layout_width="0dp"
-        android:layout_height="0dp"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        tools:listitem="@layout/row_game">
+    <androidx.swiperefreshlayout.widget.SwipeRefreshLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <androidx.recyclerview.widget.RecyclerView
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            tools:listitem="@layout/row_game">
 
-    </androidx.recyclerview.widget.RecyclerView>
+        </androidx.recyclerview.widget.RecyclerView>
+    </androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
 
     <androidx.constraintlayout.widget.ConstraintLayout
         android:layout_width="match_parent"