急急急！！ListView滑动时数据时出现的数据错乱重复问题（混动是position混乱了）

@Override
public View getView(int position, View convertView, ViewGroup parent) {
// Get a View that displays the data at the specified position in the data set.
int xsSate = 0;
int zbsSate = 0;
int caseRemain = 0;
int pieceRemain = 0;
double je = 0;
double dpje = 0;


if (convertView == null) {
viewHolder = new ViewHolder();

LayoutInflater inflater = (LayoutInflater)context.getSystemService(context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.exlistview_groupitem, null);

viewHolder.layout_014 = (LinearLayout) convertView.findViewById(R.id.layout_014);
viewHolder.childlayout= (LinearLayout) convertView.findViewById(R.id.childlayout);
viewHolder.layout_yxb = (LinearLayout) convertView.findViewById(R.id.layout_yxb);
viewHolder.px_layout03 = (LinearLayout) convertView.findViewById(R.id.px_layout03);

viewHolder.title_group_txt = (TextView)convertView.findViewById(R.id.title_group_txt);
viewHolder.ybs_child_txt = (TextView)convertView.findViewById(R.id.ybs_child_txt);
viewHolder.yxs_child_txt = (TextView)convertView.findViewById(R.id.yxs_child_txt);
viewHolder.je_child_txt = (TextView)convertView.findViewById(R.id.je_child_txt);
viewHolder.xs_child_edit = (EditText) convertView.findViewById(R.id.xs_child_edit);
viewHolder.zbs_child_edit = (EditText) convertView.findViewById(R.id.zbs_child_edit);

viewHolder.img_yxb = (ImageView) convertView.findViewById(R.id.img_yxb);
viewHolder.plus_tb_img = (ImageView) convertView.findViewById(R.id.plus_tb_img);
viewHolder.plus_xs_imgbut = (ImageButton) convertView.findViewById(R.id.plus_xs_imgbut);
viewHolder.sub_xs_imgbut = (ImageButton) convertView.findViewById(R.id.sub_xs_imgbut);
viewHolder.plus_zbs_imgbut = (ImageButton) convertView.findViewById(R.id.plus_zbs_imgbut);
viewHolder.sub_zbs_imgbut = (ImageButton) convertView.findViewById(R.id.sub_zbs_imgbut);

Log.i(TAG,"getView()--position--= " +position);
convertView.setTag(viewHolder);
}else {
viewHolder = (ViewHolder)convertView.getTag();
}
final int index = (int)getItem(position);

viewHolder.plus_tb_img.setBackgroundResource(R.drawable.icon_arrow);
viewHolder.childlayout.setVisibility(View.GONE);
viewHolder.title_group_txt.setText(groupProdinfo.get(position).getProdName());
Log.i(TAG,"prodName= "+groupProdinfo.get(position).getProdName() + " " + " PieceQTY= "+groupProdinfo.get(position).getPieceQTY() + " index= " +index);

caseRemain = groupProdinfo.get(position).getCaseRemain();//箱数
pieceRemain = groupProdinfo.get(position).getPieceRemain();//包数


if(groupProdinfo.get(position).getConvertRate() == 0){
viewHolder.px_layout03.setVisibility(View.GONE);
}else {
viewHolder.px_layout03.setVisibility(View.VISIBLE);
}

if( (caseRemain == -1) && (pieceRemain == -1)){
viewHolder.img_yxb.setVisibility(View.GONE);
viewHolder.layout_yxb.setVisibility(View.GONE);
}else {
viewHolder.img_yxb.setVisibility(View.VISIBLE);
viewHolder.layout_yxb.setVisibility(View.VISIBLE);
viewHolder.yxs_child_txt.setText(""+(caseRemain + groupProdinfo.get(position).getCaseQTY()));
viewHolder.ybs_child_txt.setText(""+(pieceRemain + groupProdinfo.get(position).getPieceQTY()));
}
viewHolder.xs_child_edit.setText(""+groupProdinfo.get(position).getCaseQTY());
viewHolder.zbs_child_edit.setText(""+groupProdinfo.get(position).getPieceQTY());

switch (app.getPiece()){
case "1":
price = groupProdinfo.get(position).getStorePrice();
setOrderNo(viewHolder,je,groupProdinfo.get(position).getConvertRate(),position,0,/*dpje,*/price);
break;
case "2":
price = groupProdinfo.get(position).getTwoSalesPrice();
setOrderNo(viewHolder,je,groupProdinfo.get(position).getConvertRate(),position,0,price);
break;
case "3":
price = groupProdinfo.get(position).getCreditPrice();//
setOrderNo(viewHolder,je,groupProdinfo.get(position).getConvertRate(),position,0,price);
break;
default:
break;
}

/* 不要将 new OnclikckBut类 放在if里面,否则position混乱*/
OnclikckBut onclikckBut = new OnclikckBut(viewHolder,position,xsSate,zbsSate);
viewHolder.layout_014.setOnClickListener(onclikckBut);
viewHolder.plus_xs_imgbut.setOnClickListener(onclikckBut);
viewHolder.sub_xs_imgbut.setOnClickListener(onclikckBut);
viewHolder.plus_zbs_imgbut.setOnClickListener(onclikckBut);
viewHolder.sub_zbs_imgbut.setOnClickListener(onclikckBut);

TextListener listener = new TextListener(viewHolder,position);
viewHolder.xs_child_edit.addTextChangedListener(listener);
viewHolder.zbs_child_edit.addTextChangedListener(listener);

Log.i(TAG," -else- getView--position--= " +position);
return convertView;
}

class TextListener implements TextWatcher{
private ViewHolder viewHolderx;
private int position;
private String xs_child;
private String zbs_child;
private double je = 0;
private String max_yx = "";
private String max_yb = "";

public TextListener(ViewHolder holder, int position){
this.viewHolderx = holder;
this.position = position;
}

@Override
public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {
}

@Override
public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
}

@Override
public void afterTextChanged(Editable editable) {
if("0".equals(editable)){
return;
}
int yxs = groupProdinfo.get(position).getCaseRemain();
int ybs = groupProdinfo.get(position).getPieceRemain();
xs_child = viewHolderx.xs_child_edit.getText().toString();
zbs_child = viewHolderx.zbs_child_edit.getText().toString();
max_yx = viewHolderx.yxs_child_txt.getText().toString().trim();
max_yb = viewHolderx.ybs_child_txt.getText().toString().trim();
if(yxs == -1 || ybs == -1){
yxs = 0;
ybs = 0;
if( xs_child.startsWith("-")){
viewHolderx.xs_child_edit.setText("0");
}

if(zbs_child.startsWith("-")){
viewHolderx.zbs_child_edit.setText("0");
}
}else {
if("".equals(xs_child) || xs_child == null){
xs_child = "0";
}
if(appTools.stringToInteger(xs_child) > appTools.stringToInteger(max_yx)){
viewHolderx.xs_child_edit.setText(""+yxs);
return;
}

if("".equals(zbs_child) || zbs_child == null){
zbs_child = "0";
}
if(appTools.stringToInteger(zbs_child) > appTools.stringToInteger(max_yb)){
viewHolderx.zbs_child_edit.setText(""+ybs);
return;
}
}

setOrderNo(viewHolderx,je,groupProdinfo.get(position).getConvertRate(),position,0,/*dpje,*/price);


Log.i(TAG,editable+" xs_child = "+groupProdinfo.get(position).getConvertRate()+" zbs_child= "+zbs_child +" position == "+position);
}
}