Android ListView的数据在滚动中不断变化

我的listview的数据在上下滚动listview时不断变化。适配器似乎有问题。下面是我用于适配器的代码。 在listview项中有两个按钮，接受和拒绝请求。如果请求被接受或拒绝，则只会显示一个按钮。如果请求处于挂起状态，即P，则会显示两个按钮

public View getView(int position, View convertView_, ViewGroup parent) {
    // TODO Auto-generated method stub

    ViewHolder view ;

    System.out.println("getView " + position + " " + convertView_);

    if (convertView_ == null) {

        convertView_ = inflator.inflate(R.layout.received_list_row, null);
        view = new ViewHolder();
        view.imageViewPage = (ImageView) convertView_
                .findViewById(R.id.received_postImage);
        view.postImageBg = (ImageView) convertView_
                .findViewById(R.id.received_postImageBg);

        view.txt_post_title = (CTextView) convertView_
                .findViewById(R.id.received_txt_post_title);

        view.txt_post_Date = (CTextView) convertView_
                .findViewById(R.id.received_txt_post_Date);
        view.txt_post_Time = (CTextView) convertView_
                .findViewById(R.id.received_txt_post_Time);

        view.llparent = (LinearLayout) convertView_
                .findViewById(R.id.received_llparent);
        view.llaccrej_btns = (LinearLayout) convertView_
                .findViewById(R.id.ll_accrejbtns);
        view.txt_acceptreq = (CTextView) convertView_
                .findViewById(R.id.textview_acceptreq);
        view.invisible_txtbtn = (CTextView) convertView_
                .findViewById(R.id.invisible_btn);
        view.txt_rejectreq = (CTextView) convertView_
                .findViewById(R.id.textview_rejectreq);

        convertView_.setTag(view);


    } else {
        view = (ViewHolder) convertView_.getTag();
    }

view.txt_post_title.setText(list.get(position).getActivity_name());
view.txt_post_Date.setText(list.get(position).getActivity_postdate());


   view.txt_post_Date.setText(list.get(position).getActivity_postdate());
        view.txt_post_Time.setText(list
                .get(position)
                .getActivity_posttime()
                .substring(
                        0,
                        list.get(position).getActivity_posttime()
                                .lastIndexOf(":")));



  if(request_status.equals("P"))
              {

              }

              else if (request_status.equals("A") && view.txt_acceptreq.getTag().equals(position)) 
            {
            LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
                    LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT);
            params.weight = 1.0f;


            view.txt_rejectreq.setVisibility(View.GONE);
            view.txt_rejectreq.setClickable(false);


            view.invisible_txtbtn.setVisibility(View.GONE);

            view.txt_acceptreq.setText("ACCEPTED");
            view.txt_acceptreq.setClickable(false);



            view.txt_acceptreq.setGravity(Gravity.CENTER);
            view.txt_acceptreq.setLayoutParams(params);

            }

          else if (request_status.equals("R") && view.txt_rejectreq.getTag().equals(position)) {

            LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
                    LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT);
            params.weight = 1.0f;

            view.txt_acceptreq.setVisibility(View.GONE);
            view.txt_acceptreq.setClickable(false);

            view.invisible_txtbtn.setVisibility(View.GONE);

            view.txt_rejectreq.setText("REJECTED");
            view.txt_rejectreq.setClickable(false);

            view.txt_rejectreq.setGravity(Gravity.CENTER);
            view.txt_rejectreq.setLayoutParams(params);


        }




        view.txt_acceptreq.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                System.out.println("CLICKED ACCEPTED" + position);

                LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
                        LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT);
                params.weight = 1.0f;
                view.txt_acceptreq.setText("ACCEPTED");
                view.txt_acceptreq.setClickable(false);
                view.txt_acceptreq.setGravity(Gravity.CENTER);
                view.txt_acceptreq.setLayoutParams(params);
                view.txt_rejectreq.setVisibility(View.GONE);
                view.txt_rejectreq.setClickable(false);
                view.invisible_txtbtn.setVisibility(View.GONE);

                int user_id = list.get(position).getUser_id();
                int activity_id = list.get(position).getActivity_id();
                String status = "A";
                macc_rejRequestTask = new AcceptRejectActivityRequestTask(
                        maccept_rejRequestResponder, activity);
                AsyncUtil.execute(macc_rejRequestTask, "" + user_id, ""
                        + activity_id, status);

            }
        });

        view.txt_rejectreq.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                System.out.println("CLICKED REJECTED " + position);
                LinearLayout.LayoutParams params   =                              new LinearLayout.LayoutParams(
                        LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT);
                params.weight = 1.0f;

                view.txt_rejectreq.setText("REJECTED");
                view.txt_rejectreq.setClickable(false);
                view.txt_rejectreq.setGravity(Gravity.CENTER);
                view.txt_rejectreq.setLayoutParams(params);

                view.txt_acceptreq.setVisibility(View.GONE);
                view.txt_acceptreq.setClickable(false);
                view.invisible_txtbtn.setVisibility(View.GONE);

                int user_id = list.get(position).getUser_id();
                int activity_id = list.get(position).getActivity_id();
                String status = "R";
                macc_rejRequestTask = new AcceptRejectActivityRequestTask(
                        maccept_rejRequestResponder, activity);
                AsyncUtil.execute(macc_rejRequestTask, "" + user_id, ""
                        + activity_id, status);

            }
        });


    return convertView_;
}

---

它是正常的，保持值活着被使用作为在数组列表等从你上面的代码每件事都看起来很好，你能确认哪些数据是重复的吗？提供一些关于它的更多信息你的完整适配器类如何添加完整的代码以及解释