问带有编辑文本的列表视图-出现键盘时自动滚动

EN

class CreateAdapter extends ArrayAdapter<String>  {
String[] strItecode=null;
String[] strItem;
String[] strQuantity;
Context context;

int temp;
CreateAdapter(Context context, String[] strItemcode, String[] strItem,
        String[] strQauntity) {
    super(context, R.layout.create_list_item, R.id.txtItemcode, strItemcode);
    this.context = context;
    this.strItecode = strItemcode;
    this.strItem = strItem;
    this.strQuantity = strQauntity;
   // text= new String[strItem.length];
}
private int editingPosition = 0;
private TextWatcher watcher = new TextWatcher() {
          public void onTextChanged(CharSequence s, int start, int before, int count) {
              text[editingPosition] = s.toString();
          }
          public void beforeTextChanged(CharSequence s, int start, int count, int after) { }
          public void afterTextChanged(Editable s) { }
      };

public View getView( final int position, View convertView, ViewGroup parent) {
    ViewHolder holder = null;
    temp=position;
    LayoutInflater mInflater = (LayoutInflater) context
            .getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
    if (convertView == null) {

        holder = new ViewHolder();
        convertView = mInflater
                .inflate(R.layout.create_list_item, parent, false);

        holder.txtItecode = (TextView) convertView
                .findViewById(R.id.txtItemcode);
        holder.txtItem = (TextView) convertView
                .findViewById(R.id.txtItem);
        holder.editQuantity = (EditText) convertView
                .findViewById(R.id.editcreateQuantity);
        holder.editQuantity.setTag(position);

        convertView.setTag(holder);
    } else {
        holder = (ViewHolder) convertView.getTag();
    }
    holder.editQuantity.removeTextChangedListener(watcher);
   if(text[temp].contentEquals("0"))
       holder.editQuantity.setText("");
   else
    holder.editQuantity.setText(text[temp]);

    holder.editQuantity.setOnFocusChangeListener(new OnFocusChangeListener() {       
        public void onFocusChange(View v, boolean hasFocus) {
          if(hasFocus) editingPosition = position;
        }
    });

    holder.editQuantity.addTextChangedListener(watcher);

    // The rest is good, just make sure to remove the call to setting the EditText's text at the end
    holder.txtItecode.setText(strItecode[position]);
    holder.txtItem.setText(strItem[position]);
  //  holder.editQuantity.setText(text[temp]);

    return convertView;


}

class ViewHolder {
    TextView txtItecode;
    TextView txtItem;
    EditText editQuantity;
}