我有一个项目列表，每个项目都有一个名称和一个删除按钮。我的populateViewHolder方法@OverrideprotectedvoidpopulateViewHolder(SubChannelViewHolderviewHolder,finalSubChannelmodel,finalintposition){//passingaclickListenertoviewHolder,viewHolderinturndecidestowhichviewitshouldassignthisclickListener.viewHolder.bindToSubChannel(model,

有没有办法在Firebase中执行原子删除？docs说YoucanalsodeletebyspecifyingnilasthevalueforanotherwriteoperationsuchassetValueorupdateChildValues...Simultaneousupdatesmadethiswayareatomic:eitherallupdatessucceedorallupdatesfail.但我无法让它工作。我下面的代码返回错误Cannotstoreobjectoftype_SwiftValueat.CanonlystoreobjectsoftypeNSNumbe