RecyclerView获取不可见的View（亲测有效）

获取屏幕内可见的View

recyclerView.getChildAt(position)   
recyclerView.layoutManager?.findViewByPosition(pos)  
recyclerView.findViewHolderForLayoutPosition(position)?.itemView

获取超出屏幕的不可见View

1、在你的mAdapter 中定义一个map

2、在你的mAdapter 中重写onViewDetachedFromWindow

class ComplaintDataSubmitAdapter() :BaseAdapter<MultiItemEntity, BaseViewHolder>(null) {
val viewHolderMap=ArrayMap<Int,View>()

override fun onViewDetachedFromWindow(holder: BaseViewHolder) {
    super.onViewDetachedFromWindow(holder)
    viewHolderMap[holder.adapterPosition] = holder.itemView
}

Use 得到屏幕外的View--> child

for (index in 0 until mAdapter.data.size) {
        val item = mAdapter.data[index]
        var child= recycleView.layoutManager?.findViewByPosition(index)
        if (child==null&&mAdapter.viewHolderMap.isNotEmpty()&&mAdapter.viewHolderMap.size>index){
            child=mAdapter.viewHolderMap[index]
}

在Activity退出清空map

override fun onDestroy() {
  if (mAdapter.viewHolderMap.isNotEmpty()){
      mAdapter.viewHolderMap.clear()
    }
    super.onDestroy()
}