How to get the Edit text position from Recycler View adapter using Text Watcher in android

Question

I want to know how to get position of Edit Text from Recycler View adapter.I used Card View with in that horizontal Linear Layout has three view TextView,EditText view and

Answer 1

In onBindViewHolder method of your Adapter, set tag for your EditText like this:

holder.editText.setTag(position);

And in your ViewHolder, add TextWatcher to your EditText

public static class ViewHolder extends RecyclerView.ViewHolder {

    EditText editText ;

    public ViewHolder(View itemView) {
        super(itemView);
        editText = itemView.findViewById(R.id.editText);
        MyTextWatcher textWatcher = new MyTextWatcher(editText);
        editText.addTextChangedListener(textWatcher);
    }
}

And here is your TextWatcher:

public class MyTextWatcher implements TextWatcher {
    private EditText editText;

    public MyTextWatcher(EditText editText) {
        this.editText = editText;
    }

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

    }

    @Override
    public void onTextChanged(CharSequence s, int start, int before, int count) {
        int position = (int) editText.getTag();
        // Do whatever you want with position
    }

    @Override
    public void afterTextChanged(Editable s) {

    }
}

NOTE: Make sure you call setTag method from your EditText before calling setText method, else it will throw NullPointerException. Or alternatively you can add null check when calling getTag method.

UPDATE 1

If your EditText already has another tag set, use ID to identify tags. e.g. when setting tag use this:

holder.editText.setTag(R.id.editText, position);

where R.id.editText is valid id of any of your resources (See documentation for details).

And also when getting value:

int position = (int) editText.getTag(R.id.editText);