java – Android：ListView中的EditText问题

>一些EditText需要数字输入,所以我将inputType设置为相应的xml类型为数字,但是,当我点击EditText时,数字键盘显示,但几乎立即消失,并显示常规键盘.
>您可以想像,我需要存储用户在这些EditTexts中输入的值.我有这个问题是,在我输入一些文本在SOME EditTexts和我向下滚动后,文本消失,当我回去.你可以在我的代码中看到我试图阻止这一点,我应该提到它与复选框完全一样.
>一开始我遇到了失去焦点的问题,但是我已经解决了其他问题(添加descendantFocusablity =“beforeDescendants”到ListView和windowSoftInputMode =“adjustPan”).工作正常,除了当EditText低于屏幕的一半时,一旦我开始键入它就会失去焦点.
列表适配器的getView方法：

public View getView(final int position,View result,ViewGroup parent)
{
final ViewHolder vh;
final Question question = values.get(position);
if(holders[position]==null)
    vh = new ViewHolder();
else
    vh = holders[position];

LayoutInflater inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if(question.getQuestionType().equals(Question.TYPE_CLOSED))
{
    result = inflater.inflate(R.layout.closed_question_list_item,null);
    vh.cb  = (CheckBox)result.findViewById(R.id.checkBox);
    vh.cb.setonCheckedchangelistener(new OnCheckedchangelistener() 
    {

        @Override
        public void onCheckedChanged(CompoundButton buttonView,boolean isChecked) 
        {
            vh.isChecked      = isChecked;
            holders[position] = vh;
        }
    });
    vh.cb.setChecked(vh.isChecked);
}

else
{
    result = inflater.inflate(R.layout.numeric_question_list_item,null);
    vh.et  = (EditText)result.findViewById(R.id.question_et);
    vh.et.addTextChangedListener(new TextWatcher()
    {
        @Override
        public void afterTextChanged(Editable s) 
        {
            vh.tvValue = s.toString();
            holders[position] = vh;
            Log.i(TAG,"Entered afterTextChanged for "+ question.getText());
        }

        @Override
        public void beforeTextChanged(CharSequence s,int start,int count,int after) 
        {   
        }

        @Override
        public void onTextChanged(CharSequence s,int before,int count) 
        {
        }
    });
    vh.et.setText(vh.tvValue);
}
vh.tv = (TextView)result.findViewById(R.id.question_text);

vh.tv.setText(question.getText());

holders[position] = vh;
result.setTag(vh);
return result;
}