Textview.setText在适配器类内的textwatcher类中不起作用

Question

我想在mytextWatcher的aftertextchanged方法上将textdown倒计时器值设置为textview当用户在edittext中输入一些文本但值没有设置为textview时发生这一切。 这是我的代码：

适配器类中的

：

public View getView(int i, View view, ViewGroup viewGroup) {
           /* LayoutInflater vi = (LayoutInflater) getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);*/
            View rowView = view;
            if (rowView == null) {

                final LayoutInflater inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                rowView = inflater.inflate(R.layout.items_visitorlist, null);



                TextView edtxtotp = (EditText) rowView.findViewById(R.id.edtxtotp);

                txttimer = (TextView) rowView.findViewById(R.id.txttimer);


                edtxtotp.addTextChangedListener(new MyTextWatcher(edtxtotp) );

textwatcher类中的

        @Override
        public void afterTextChanged(Editable s) {
            EditText edtxtotp = (EditText) view.findViewById(R.id.edtxtotp);
            //final TextView txttimer = (TextView) view.findViewById(R.id.txttimer);
            Toast.makeText(context, "Hi"+otp, Toast.LENGTH_LONG).show();
            if(edtxtotp.getText().toString().length()>=4) {
                Toast.makeText(context, "Hi", Toast.LENGTH_LONG).show();
                new CountDownTimer(60000,1000)
                {

                    @Override
                    public void onTick(long l) {
                        txttimer.setText("testing");
                        counter--;
                    }

                    @Override
                    public void onFinish() {
                        txttimer.setText("Finish");
                    }
                }.start();
            }
            else
            {
                Toast.makeText(context, "Maximum level reached", Toast.LENGTH_LONG).show();
            }

        }

    }