swipe to refresh

layout.xml

<android.support.v4.widget.SwipeRefreshLayout
        android:id="@+id/rssSwipeRefreshContainer"
        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">

        // layouts to refresh

    </android.support.v4.widget.SwipeRefreshLayout>

main.kt

class XView {
 onCreate(){
  swipeRefreshContainer.setOnRefreshListener { webView.reload() }
 }

  // somewhere when updated data received
  swipeRefreshContainer.isRefreshing = false
}