<androidx.swiperefreshlayout.widget.SwipeRefreshLayout  
        android:layout\_width="0dp"  
        android:layout\_height="0dp"  
        app:layout\_constraintTop\_toTopOf="parent"  
        app:layout\_constraintEnd\_toEndOf="parent"  
        app:layout\_constraintStart\_toStartOf="parent"  
        app:layout\_constraintBottom\_toBottomOf="parent"  
        android:id="@+id/swipe\_refresh\_layout">

    <androidx.recyclerview.widget.RecyclerView  
            android:layout\_width="match\_parent"  
            android:layout\_height="match\_parent" android:id="@+id/recycle\_view"/>

</androidx.swiperefreshlayout.widget.SwipeRefreshLayout>

使用比较简单 这里就模拟了一下加载效果 下拉触发加载显示动画此时isRefreshing=true   加载数据后需要修改为false 隐藏动画

swipe_refresh_layout.isRefreshing = false
swipe_refresh_layout.setOnRefreshListener {
Handler().postDelayed({
swipe_refresh_layout.isRefreshing = false
},2000)
}