RecyclerView中有EditText時，設定TextWatcher發生錯亂問題

解決辦法：

1. 在Adapter裡面的onBindViewHolder方法裡面先移除當前item中EditText的TextWatcher；

if (holder.editText.getTag() != null && holder.editText.getTag() instanceof TextWatcher) {
            holder.editText.removeTextChangedListener((TextWatcher) holder.editText.getTag());
        }
 

2. 新建一個TextWatcher，然後給當前editText新增；

TextWatcher textWatcher = 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) {
                String txt = holder.editText.getText().toString();
                if (!TextUtils.isEmpty(txt) && !TextUtils.equals(datas.get(position).getTxt(), txt)) {
                    data.setTxt(txt);
                }
            }
        };
holder.editText.addTextChangedListener(textWatcher);
 

3. 最後給當前EditText設定Tag為當前的TextWatcher

holder.editText.setTag(textWatcher);