RecyclerView GridLayoutManager設(shè)置空狀態(tài)時尚洽，需設(shè)置getSpanSize
layoutManager.spanSizeLookup = object : GridLayoutManager.SpanSizeLookup() {
override fun getSpanSize(position: Int): Int {
if(position == 0 && adapter.data.size == 0){
return layoutManager.spanCount
}
return 1
}
}
