删除Gridlayout中的一些项目Recyclerview叶空的空间

Question

我想从我的recyclerview中的Json响应中删除一些项目，但是当我这样做时，正在创建空项目空间来代替删除的项目。只有当我使用带有recyclerview的gridlayout管理器时才会发生这种情况，如果我使用Linearlayout管理器没有空白空间。下面是我的代码

activityRecylerviewBinding.recyclerview1.setHasFixedSize(true); 
    //activityRecylerviewBinding.recyclerview1.setLayoutManager(new LinearLayoutManager(getActivity())); 

    RecyclerView.LayoutManager mLayoutManager = new GridLayoutManager(getActivity(), 2); 
    activityRecylerviewBinding.recyclerview1.setLayoutManager(mLayoutManager); 
    activityRecylerviewBinding.recyclerview1.addItemDecoration(new GridSpacingItemDecoration(2, dpToPx(5), true)); 
    activityRecylerviewBinding.recyclerview1.setItemAnimator(new DefaultItemAnimator()); 

而对于删除项目

if (!user.emailId.equals(clickedemail)){ 
       viewHolder.setIsRecyclable(false); 
       viewHolder.mAdapterItemChatsBinding.gooot.removeAllViews(); 
       viewHolder.mAdapterItemChatsBinding.gooot.setPadding(0, 0, 0, 0); 
       //viewHolder.mAdapterItemChatsBinding.gooot.getLayoutParams().height = 0; 
      }else { 
       viewHolder.bindUser(user, RecycFragment.this); 
      } 

当我使用的打击代码它的正常工作。

 activityRecylerviewBinding.recyclerview1.setLayoutManager(new LinearLayoutManager(getActivity())); 

JsonParsing代码

private void initializeFirebase() { 

    final Query refUsers = FirebaseDatabase.getInstance() 
      .getReference(ConstantsFirebase.FIREBASE_LOCATION_GARMENTS); 
    refUsers.keepSynced(true); 

    final List<UploadImage> uploadImageList = new ArrayList<>(); 
    refUsers.addValueEventListener(new ValueEventListener() { 
     @Override 
     public void onDataChange(DataSnapshot dataSnapshot) { 
      for (DataSnapshot messageSnapshot : dataSnapshot.getChildren()) { 

       UploadImage uploadImage = messageSnapshot.getValue(UploadImage.class); 

       uploadImageList.add(uploadImage); 

      } 
     } 

     @Override 
     public void onCancelled(DatabaseError databaseError) { 

     } 
    }); 



    mAdapter = new FirebaseRecyclerAdapter<UploadImage, ChatsItemHolder>(UploadImage.class, R.layout.recycitemfirebase, 
      ChatsItemHolder.class, refUsers) { 
     @Override 
     public ChatsItemHolder onCreateViewHolder(ViewGroup parent, int viewType) { 
      adapterItemChatsBinding = DataBindingUtil.inflate(LayoutInflater 
        .from(parent.getContext()), viewType, parent, false); 
      //adapterItemChatsBinding.tvUserName.setTypeface(Typefaces.get(getActivity(), Constants.FONT_ROBOT_REGULAR)); 

      return new ChatsItemHolder(adapterItemChatsBinding); 
     } 


     @Override 
     protected void populateViewHolder(ChatsItemHolder viewHolder, final UploadImage user, int position) { 
      SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getActivity()); 
      clickedemail = prefs.getString(Constants.KEY_CLICKED_EMAIL, ""); 


      if (!user.emailId.equals(clickedemail)){ 
       viewHolder.setIsRecyclable(false); 
       viewHolder.mAdapterItemChatsBinding.gooot.removeAllViews(); 
       viewHolder.mAdapterItemChatsBinding.gooot.setPadding(0, 0, 0, 0); 

       //viewHolder.mAdapterItemChatsBinding.gooot.getLayoutParams().height = 0; 
      }else { 
       viewHolder.bindUser(user, RecycFragment.this); 
      } 

      viewHolder.mAdapterItemChatsBinding.title.setText(user.getGarment_name()); 

      viewHolder.mAdapterItemChatsBinding.count.setText(user.getGarment_color()); 
      Glide.with(viewHolder.mAdapterItemChatsBinding.thumbnail.getContext()) 
        .load(user.getImage()) 
        .placeholder(R.drawable.ic_person) 
        .fitCenter() 
        .dontAnimate() 
        .into(viewHolder.mAdapterItemChatsBinding.thumbnail); 
     } 




    }; 

    activityRecylerviewBinding.recyclerview1.setAdapter(mAdapter); 

}

谁能告诉我什么我做错了吗？

PS：如果有人不明白我的问题，请评论我会张贴截图。

Answer 1

你在哪里从数据集中删除你的项目？

删除项目的操作应该有数据集中的项目索引，如果不是这样？如果是这样的事情应该工作：

public void removeItem(final int index) { 
    list.remove(index); 
    adapter.notifyItemRemoved(index); 
}