How to get data from Edit Text in a RecyclerView?

Question

I have recyclerview with edit text. Each row has a edit text. I am entering values in the edit text manually and after i enter values, I want to get those values in each and eve

Answer 1

To do this there are two ways:-

1) Add save Button in each row of RecyclerView on this Button click (onClick)

 @Override
        public void onClick(View v) {
           String ans = holher.numPicker.getText().toString();
           // save ans to sharedpreferences or Database
        }

2) Add onTextChangedListener to EditText

holher.mumPicker.addTextChangedListener(new TextWatcher() {

   public void afterTextChanged(Editable s) {}

   public void beforeTextChanged(CharSequence s, int start,
     int count, int after) {
   }

   public void onTextChanged(CharSequence s, int start,
     int before, int count) {
      String ans = holher.numPicker.getText().toString();
           // save ans to sharedpreferences or Database
   }
  });

Then in your MainActivity.java retrive data from sharedpreferences or database

Answer 2

I had a similar problem.My Recyclerview contained one Textview, two EditTexts and one remove Button to remove the item from the Recyclerview. I am getting the data from both the Edittexts, from a model class using a button from my activity. Everything works well I just want to know what all optimizations I can make. Please give your suggestions in a detailed manner.

My Model Class:

public class OrderGS {
  String names, rty,qty;

    public OrderGS(String name, String rty, String qty) {
        this.names = name;
        this.rty = rty;
        this.qty = qty;
    }

    public String getName() {
        return names;
    }

    public void setName(String names) {
        this.names = names;
    }

    public String getRty() {
        return rty;
    }

    public void setRty(String rty) {
        this.rty = rty;
    }

    public String getQty() {
        return qty;
    }

    public void setQty(String qty) {
        this.qty = qty;
    }
}

Above class holds the three Strings one is the titile and the two hold the edittext data.

My Adapter code:

class OOHolderI extends RecyclerView.ViewHolder{

        TextView title;
        EditText rty,qty;
        public OOHolderI(View itemView) {
            super(itemView);
            title = itemView.findViewById(R.id.text_order);
            rty = itemView.findViewById(R.id.editRTY);
            qty = itemView.findViewById(R.id.editQTY);
            itemView.findViewById(R.id.button_remove).setOnClickListener(v -> {
               arrayList.remove(getAdapterPosition());
               if(rtyArray.size()>0) {
                   rtyArray.remove(getAdapterPosition());
                   qtyArray.remove(getAdapterPosition());
               }
               notifyDataSetChanged();
           });
            rty.addTextChangedListener(new TextWatcher() {
                @Override
                public void beforeTextChanged(CharSequence s, int start, int count, int after) {

                }

                @Override
                public void onTextChanged(CharSequence s, int start, int before, int count) {

                }

                @Override
                public void afterTextChanged(Editable s) {
                arrayList.get(getAdapterPosition()).setRty(s.toString());
                if(!rtyArray.contains(getAdapterPosition())){
                rtyArray.add(getAdapterPosition());}
                }
            });
            qty.addTextChangedListener(new TextWatcher() {
                @Override
                public void beforeTextChanged(CharSequence s, int start, int count, int after) {

                }

                @Override
                public void onTextChanged(CharSequence s, int start, int before, int count) {

                }

                @Override
                public void afterTextChanged(Editable s) {
                    arrayList.get(getAdapterPosition()).setQty(s.toString());
                    if(!qtyArray.contains(getAdapterPosition())) {
                        qtyArray.add(getAdapterPosition());
                    }
                }

            });


        }

}

In the adapter I am using two arraylists rtyArray and qtyArray to hold the position of the Edittext data in the model class.

public ArrayList<Integer> getRTY() {
    return rtyArray;
}
public ArrayList<Integer> getQTY(){
    return qtyArray;
} 

The above two functions return the positions of the Edittextdata

My Activity:

 findViewById(R.id.button_save).setOnClickListener(v -> {
            ArrayList<Integer> rtyArray = adapter.getRTY();
            ArrayList<Integer> qtyArray = adapter.getQTY();
            if(rtyArray.size()>0) {
               for(Integer i: rtyArray){
              //get data here like 
              arrayListOfModel.get(i).getRty(); 
              arrayListOfModel.get(qtyArray.get(i)).getQty();
               }
            }
        });
        adapter.notifyDataSetChanged();

In my case both the position holding arrays are always equal in size.

Answer 3

You don't need to use so many lists, just create a class that will contain all the data of single item, there is no need for buttons, use just text change listener instead.

sample code

public class RetItem
{
    public String _itemName;
    public String _itemQty;
    public String _itemPcode;
    public String _itemPlant;
}

public class SelectItemAdapter extends RecyclerView.Adapter<SelectItemAdapter.ItemHolder> {

    private List<RetItem> _retData;
     public SelectItemAdapter(Context context, String[] mDataset) {
        layoutInflater = LayoutInflater.from(context);
        _retData = new ArrayList<RetItem>(mDataset.length);
        this.mDataset = mDataset;
    }

      @Override
    public void onBindViewHolder(SelectItemAdapter.ItemHolder holder, final int position) {
        holder.setItemName(itemsName.get(position));
        holder.setItemName.addTextChangedListener(new TextWatcher() {

           public void afterTextChanged(Editable s) {}

           public void beforeTextChanged(CharSequence s, int start,
             int count, int after) {
           }

           public void onTextChanged(CharSequence s, int start, int before, int count) {
             _retData.get(position)._itemName = s.toString();
           }
          });

        holder.setItemQty(itemsQty.get(position));
        holder.setItemQty.addTextChangedListener(new TextWatcher() {

           public void afterTextChanged(Editable s) {}

           public void beforeTextChanged(CharSequence s, int start,
             int count, int after) {
           }

           public void onTextChanged(CharSequence s, int start, int before, int count) {
             _retData.get(position)._itemQty = s.toString();
           }
          });

        holder.setItemPCode(itemsPCode.get(position));
        holder.setItemPCode.addTextChangedListener(new TextWatcher() {

           public void afterTextChanged(Editable s) {}

           public void beforeTextChanged(CharSequence s, int start,
             int count, int after) {
           }

           public void onTextChanged(CharSequence s, int start, int before, int count) {
             _retData.get(position)._itemPcode = s.toString();
           }
          });       
        holder.setItemPlant(itemPlant.get(position));
        holder.setItemPlant.addTextChangedListener(new TextWatcher() {

           public void afterTextChanged(Editable s) {}

           public void beforeTextChanged(CharSequence s, int start,
             int count, int after) {
           }

           public void onTextChanged(CharSequence s, int start, int before, int count) {
             _retData.get(position)._itemPlant = s.toString();
           }
          });
    }

    public List<RetItem> retrieveData()
    {
        return _retData;
    }
}