Question

我尝试从第一部分删除一些行，从第二部分删除一些但是

sectionAdapter.notifyItemRemovedFromSection(TAG, key);

TAG始终返回第2个部分列表字符串TAG，但我在第一个列表中选择了行

这是完整的类代码：

class ContactsSection extends StatelessSection {

    final String TAG;
    String title;
    List<Item> list;
    ItemViewHolder row;
    HeaderViewHolder MainRow;

    ContactsSection(String title, ArrayList<Item> list) {
        super(R.layout.shopping_row_item_header, R.layout.shopping_row_item);
        this.title = title;
        this.list = list;
        this.TAG = title;
    }

    @Override
    public int getContentItemsTotal() {
        return list.size();
    }

    @Override
    public RecyclerView.ViewHolder getItemViewHolder(View view) {
        return new ItemViewHolder(view);
    }

    @Override
    public void onBindItemViewHolder(final RecyclerView.ViewHolder holder, final int position) {

        final ItemViewHolder itemHolder = (ItemViewHolder) holder;
        final Item name = list.get(position);
        itemHolder.tvItem.setText(name.name);
        ((ItemViewHolder) holder).IntegBOX.setChecked(name.checked);
        ((ItemViewHolder) holder).IntegBOX.setTag(position);


        deleteAll.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View arg0) {

                Iterator it = selectedCheckBox.entrySet().iterator();
                if (!it.hasNext()) {

                    new makeDialog().makeDialog(mActivity, mActivity.getResources().getString(R.string.share_no_data));

                } else {


                    while (it.hasNext()) {
                        Map.Entry pair = (Map.Entry) it.next();
                        int key = (Integer) pair.getKey();
                        if ((Boolean) pair.getValue()) {
                            list.remove(key);

     // problem Here 
                            sectionAdapter.notifyItemRemovedFromSection(TAG, key);               

 }


                    }

                    chooseAllradioButton.setSelected(false);
                }
            }
        });


        itemHolder.IntegBOX.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                //Set the button's appearance
                ((CheckBox) v).setChecked(!((CheckBox) v).isChecked());

                // if button Already in checked statue
                if (((CheckBox) v).isChecked()) {

                    Iterator it = selectedCheckBox.entrySet().iterator();
                    while (it.hasNext()) {
                        Map.Entry pair = (Map.Entry) it.next();
                        int key = (Integer) pair.getKey();
                        if (key == (Integer) v.getTag()) {
                            it.remove();
                        }
                        // set it as false
                        ((CheckBox) v).setChecked(false);
                    }
                } else {
                    // Otherwise set it to true and add it to hashMap
                    ((CheckBox) v).setChecked(true);
                    selectedCheckBox.put((Integer) v.getTag(), true);
                }


                Toast.makeText(mActivity, String.format("Clicked on position #%s of Section %s", sectionAdapter.getPositionInSection(itemHolder.getAdapterPosition()), title), Toast.LENGTH_SHORT).show();
            }
        });
    }

    @Override
    public RecyclerView.ViewHolder getHeaderViewHolder(View view) {
        return new HeaderViewHolder(view);
    }

    @Override
    public void onBindHeaderViewHolder(RecyclerView.ViewHolder holder) {
        HeaderViewHolder headerHolder = (HeaderViewHolder) holder;
        headerHolder.tvTitle.setText(title);
    }

    // Remove All Btn Fuc





    class HeaderViewHolder extends RecyclerView.ViewHolder {

        private final TextView tvTitle;

        HeaderViewHolder(View view) {
            super(view);
            tvTitle = (TextView) view.findViewById(R.id.DishName);
        }
    }

    class ItemViewHolder extends RecyclerView.ViewHolder implements CompoundButton.OnCheckedChangeListener {

        private final View rootView;
        private final TextView tvItem;
        private final CheckBox IntegBOX;

        ItemViewHolder(View view) {
            super(view);

            rootView = view;
            tvItem = (TextView) view.findViewById(R.id.DishName);
            IntegBOX = (CheckBox) view.findViewById(R.id.chooseDish);
            IntegBOX.setOnCheckedChangeListener(this);
        }

        @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
            //   int position = getAdapterPosition();
            //   list.get(position).checked = isChecked;
        }
    }


}


private class Item {
    String name;
    boolean checked;

    Item(String name) {
        this.name = name;
        checked = false;
    }
}

添加部分代码：

     for (int d = 0; d < DishesIngredientsShoppingList.size(); d++) {
        contacts = new ArrayList<>();
        for (int i = 0; i < DishesIngredientsShoppingList.get(d).getGroups().length; i++) {
            for (int g = 0; g < DishesIngredientsShoppingList.get(d).getGroups()[i].getIngredients().length; g++) {
                if (Language)
                    contacts.add(new Item(DishesIngredientsShoppingList.get(d).getGroups()[i].getIngredients()[g].getName()));
                else
                    contacts.add(new Item(DishesIngredientsShoppingList.get(d).getGroups()[i].getIngredients()[g].getNameEnglish()));


            }
        }

     sectionAdapter = new SectionedRecyclerViewAdapter();
    ArrayList<Item> contacts = new ArrayList<>();
    // ArrayList<String> dishNames = new ArrayList<>();
    mRecyclerView.setLayoutManager(new LinearLayoutManager(mActivity));
             if (Language)
            sectionAdapter.addSection(DishesIngredientsShoppingList.get(d).getName(), new ContactsSection(DishesIngredientsShoppingList.get(d).getName(),contacts));
        else
            sectionAdapter.addSection(DishesIngredientsShoppingList.get(d).getEnglishName(), new ContactsSection(DishesIngredientsShoppingList.get(d).getEnglishName(),contacts));


    }
    mRecyclerView.setAdapter(sectionAdapter);

注意：我在操作栏中设置了删除按钮而不是每行所以当代码运行时代码无法检测当前行节标记

Answer 1

您正在存储此selectedCheckBox地图中所有部分的所有选中复选框，但点击deleteAll按钮后，您可以从其所在的部分拨打notifyItemRemovedFromSection。

您必须将selectedCheckBox地图更改为还存储该复选框所属的“标记”部分，然后当您致电notifyItemRemovedFromSection时，您可以传递正确的“标记”。

错误的部分TAG值

1 个答案: