Select all checkboxes in RecyclerView

Question

How can I select all checkboxes in recyclerView?

I try to do it like this:

in Adapter:

   public void selectAll(){
        Log.e("onClickSelectAll","yes");
        isSelectedAll=true;
        notifyDataSetChanged();
    }


@Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        PersonDTO item = dataSet.get(position);
        holder.tvName.setText(item.getName());
        if (!isSelectedAll) holder.cbSelect.setSelected(false);
        else holder.cbSelect.setSelected(true);}

In layout Activity I have a button with onClickListener:

 private void onClickSelectAll(View view) {

        getSelectPersonsAdapter().selectAll();
    }

And what's the result of doing it like this? – Egor Sep 05 '16 at 10:58 — Egor, Sep 05 '16 at 10:58
just change setSelected to setChecked – Rahul Mandaliya Sep 05 '16 at 11:04 — Rahul Mandaliya, Sep 05 '16 at 11:04
@RahulMandaliya It's helped, thanks! Make answer – no news Sep 05 '16 at 11:08 — no news, Sep 05 '16 at 11:08

score 21 · Accepted Answer · answered Oct 13 '16 at 04:44

21

You made a simple mistake here

  if (!isSelectedAll) holder.select_item.setChecked(false);
    else holder.select_item.setChecked(true);

change setSelected into setChecked thats it

answered Oct 13 '16 at 04:44

AMAN SINGH

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score 8 · Answer 2 · answered May 15 '19 at 10:48

for both Select All and Unselect All

activty

 checkall.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            if(checkall.isChecked()){
                categoryAdapter.selectAll();
            }
            else {
                categoryAdapter.unselectall();
            }


        }
    });

in adapter

  public void selectAll(){
        isSelectedAll=true;
        notifyDataSetChanged();
    }
    public void unselectall(){
        isSelectedAll=false;
        notifyDataSetChanged();
    }



    @Override
    public void onBindViewHolder(@NonNull final MyviewHolder holder, int position) {
        final CategoryListItems list = categoryListItems.get(position);
        holder.text.setText(list.getName());
        if (!isSelectedAll){
            holder.checkbox.setChecked(false);
        }
        else  holder.checkbox.setChecked(true);

Rahul Rokade · Answer 3 · 2022-07-07T06:12:49.140

Select all Checkbox in recycler view with data binding

In adapter assign globally boolean parameter

public boolean isAllChecked = false;

Create select all method

public void setAllChecked(boolean isAllChecked) {
    this.isAllChecked = isAllChecked;
    notifyDataSetChanged();
}

In onBind view to write here

if (!isAllChecked) holder.ulbCheckboxBinding.chkBoxUlbName.setChecked(false);
    else holder.ulbCheckboxBinding.chkBoxUlbName.setChecked(true);

Go to your activity and used onclick listener

binding.checkSelectAll.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            adapter.setAllChecked(binding.checkSelectAll.isChecked());
            adapter.notifyDataSetChanged();
        }
    });

thank you #android

Select all checkboxes in RecyclerView

3 Answers3

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