解决SwipeRefreshLayout和ViewPager2滑动灵敏问题

class SwipeRefreshLayoutViewPager2 : SmartRefreshLayout {
constructor(context: Context, attes: AttributeSet) : super(context, attes) {}
constructor(context: Context) : super(context)

private var startX = 0
private var beginScrolll = false //是否开始滑动
private var startY: Int = 0
override fun dispatchTouchEvent(ev: MotionEvent): Boolean {
    when (ev.action) {
        MotionEvent.ACTION_DOWN -> {
            startX = ev.x.toInt()
            startY = ev.y.toInt()
            parent.requestDisallowInterceptTouchEvent(true)
        }
        MotionEvent.ACTION_MOVE -> {
            val endX = ev.x.toInt()
            val endY = ev.y.toInt()
            val disX = Math.abs(endX - startX)
            val disY: Int = Math.abs(endY - startY)
            if (disX > disY) {
                if (!beginScrolll)
                    parent.requestDisallowInterceptTouchEvent(false)
            } else {
                beginScrolll = true
                parent.requestDisallowInterceptTouchEvent(true)
            }
        }
        MotionEvent.ACTION_UP, MotionEvent.ACTION_CANCEL -> {
            parent.requestDisallowInterceptTouchEvent(false)
            beginScrolll=false
        }
    }
    return super.dispatchTouchEvent(ev)
}

}