viewpager2嵌套RecyclerView横向滑动冲突

实测有效,上代码innerRecyclerView:

class InnerRecyclerView(context: Context, attrs: AttributeSet?) : RecyclerView(context, attrs) {
   
    private var startX = 0f
    private var startY = 0f

    override fun onInterceptTouchEvent(e: MotionEvent): Boolean {
        when (e.action) {
            MotionEvent.ACTION_DOWN -> {
                startX = e.x
                startY = e.y
                // 让父视图不要拦截触摸事件
                parent.requestDisallowInterceptTouchEvent(true)
            }
            MotionEvent.ACTION_MOVE -> {
                val deltaX = e.x - startX
                val deltaY = e.y - startY
                if (Math.abs(deltaX) > Math.abs(deltaY)) {
                    // 横向滑动,请求父视图不要拦截事件
                    parent.requestDisallowInterceptTouchEvent(true)
                } else {
                    // 纵向滑动,让父视图拦截事件
                    parent.requestDisallowInterceptTouchEvent(false)
                }
            }
            MotionEvent.ACTION_UP, MotionEvent.ACTION_CANCEL -> {
                // 允许父视图拦截触摸事件
                parent.requestDisallowInterceptTouchEvent(false)
            }
        }
        return super.onInterceptTouchEvent(e)
    }
}

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