ListView 中使用checkbox状态错乱的问题

public class OperLayerItemAdapter extends BaseAdapter {
private ArrayList<LayerItem> mList;
private Context mContext;
private LayoutInflater mInflater;// 得到一个LayoutInfalter对象用来导入布局
private int mTouchItemPosition=-1;
private String mISelPos ="";
public void SetSelPos(String pos){
mISelPos = pos;
}

public OperLayerItemAdapter(Context context, ArrayList<LayerItem> list) {
    super();
    mContext = context;
    this.mList = list;
    this.mInflater = LayoutInflater.from(context);

}
private OnSeekBarValueChangeListener mOnSeekBarValueChangeListener=null;
public interface OnSeekBarValueChangeListener{
    void onClick(SeekBar seekBar, int progress, boolean fromUser,int pos);
};
public void setOnSeekBarValueChangeListener(OnSeekBarValueChangeListener SeekBarValueChangeListener){
    mOnSeekBarValueChangeListener = SeekBarValueChangeListener;
}
private OnCheckedValueChangeListener mOnCheckedValueChangeListener=null;
public interface OnCheckedValueChangeListener{
    void onClick(CompoundButton buttonView, boolean isChecked, int pos);
};
public void setOnCheckedValueChangeListener(OnCheckedValueChangeListener CheckedValueChangeListener){
    mOnCheckedValueChangeListener = CheckedValueChangeListener;
}
@Override
public int getCount() {
    // TODO Auto-generated method stub
    return mList.size();
}

@Override
public Object getItem(int arg0) {
    // TODO Auto-generated method stub
    return mList.get(arg0);
}

@Override
public long getItemId(int arg0) {
    // TODO Auto-generated method stub
    return arg0;
}

@Override
public View getView(final int pos, View convertView, ViewGroup arg2) {
    final childViewHolder viewHolder;
    if (convertView == null) {
        convertView = mInflater.inflate(R.layout.layout_layer_item, null);

        viewHolder = new childViewHolder();
        viewHolder.LayerImageView = (ImageView) convertView
                .findViewById(R.id.id_layeritem_iv);
        viewHolder.LayerTextView = (TextView) convertView
                .findViewById(R.id.id_layeritem_tv);
        viewHolder.LayerCheckBox = (CheckBox) convertView
                .findViewById(R.id.id_layeritem_cb);
        viewHolder.LayerSeekBar = (SeekBar)convertView.findViewById(R.id.id_layer_seekBar);
        viewHolder.LayerSeekBar.setTag(pos);
        convertView.setTag(viewHolder);
    } else {
        viewHolder = (childViewHolder) convertView.getTag();
    }
    if (pos%2==0) {
        convertView.setBackgroundColor(mContext.getResources().getColor(R.color.item_dark_gray));
    }else{
        convertView.setBackgroundColor(mContext.getResources().getColor(R.color.item_light_gray));
    }
    viewHolder.LayerImageView.setBackgroundColor(FeatureRenderer.getLayerColor(mList.get(pos).get_lyrId()));
    String name =mList.get(pos).getlryName();
    viewHolder.LayerTextView.setText(mList.get(pos).getlryName());

//在CheckBox的onCheckedChanged中重新赋值个数据组，并且将设置复选框的选中状态在CheckedChangeListener之后
viewHolder.LayerCheckBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
mOnCheckedValueChangeListener.onClick(buttonView,isChecked,pos);

            if (isChecked)
                mList.get(pos).setlryCheck(true);
            else
                mList.get(pos).setlryCheck(false);
        }
    });
    viewHolder.LayerCheckBox.setChecked((Boolean) mList.get(pos).islryCheck());


    viewHolder.LayerSeekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
        @Override
        public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
            int pos1 = (int) viewHolder.LayerSeekBar.getTag();
            mOnSeekBarValueChangeListener.onClick(seekBar,progress,fromUser,pos);
            float Opacity = (float) (progress / 100.00);
            mList.get(pos).setlyrOpacity(Opacity);
        }

        @Override
        public void onStartTrackingTouch(SeekBar seekBar) {

        }

        @Override
        public void onStopTrackingTouch(SeekBar seekBar) {

        }
    });
    int Opacity = (int) (mList.get(pos).getlyrOpacity()*100);
    viewHolder.LayerSeekBar.setProgress(Opacity);

    if (mList.get(pos).getlryName().equals(mISelPos)){
        viewHolder.LayerTextView.setTextColor(Color.RED);
    }else{
        viewHolder.LayerTextView.setTextColor(Color.BLACK);
    }
    return convertView;
}
class childViewHolder {
    public ImageView LayerImageView;
    public TextView LayerTextView;
    public CheckBox LayerCheckBox;
    public SeekBar LayerSeekBar;
}

}