MySwipeLayout.kt

public class MySwipeLayout : SwipeRefreshLayout {

    public constructor(context: Context) : super(context)

    public constructor(context: Context, attrs: AttributeSet) : super(context, attrs)

    var appBarLayout: AppBarLayout? = null

    override fun onAttachedToWindow() {
        super<SwipeRefreshLayout>.onAttachedToWindow()
        val context = getContext()
        if (context is Activity) {
            appBarLayout = context.findViewById(R.id.appBarLayout) as AppBarLayout?
        }
    }

    override fun onDetachedFromWindow() {
        appBarLayout = null
        super<SwipeRefreshLayout>.onDetachedFromWindow()
    }

    override fun onInterceptTouchEvent(ev: MotionEvent?): Boolean {
        if (appBarLayout?.getTop() != 0) {
            return false
        }
        return super<SwipeRefreshLayout>.onInterceptTouchEvent(ev)
    }
}