请教我的这个Fragment为什么始终只显示一条数据？

public class CopyOfPersonDynamic extends DemoListFragment {

View mRootView;
private Context mContext;
private ListView mListView;
private DataAdapter mAdapter;
private Handler mHandler;

@Override
public View onCreateView(LayoutInflater mInflater,
        @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    mHandler = new Handler(Looper.getMainLooper()) {
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            mAdapter.refreshDataAdapter();
            mListView.requestLayout();
            mAdapter.notifyDataSetChanged();
        }
    };
    mContext = container.getContext();
    mRootView = mInflater.inflate(R.layout.tabroot, null);
    mListView = (ListView) mRootView.findViewById(R.id.dynamicList);
    mAdapter = new DataAdapter();
    mListView.setAdapter(mAdapter);
    mListView.setClickable(true);
    mListView.setOnItemClickListener(new OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view,
                int position, long id) {// 点击单行跳转至分时图页面并显示该代码的分时图
            Intent it = new Intent(getActivity(), DemoActivity.class);
            startActivity(it);
        }
    });
    refreshTask();
    return mRootView;
}

private void refreshTask() {
    Timer timer = new Timer(false);
    TimerTask task = new TimerTask() {
        @Override
        public void run() {
            // TODO Auto-generated method stub
            if (GetData.getData())
                mHandler.sendEmptyMessage(1);
        }
    };
    timer.schedule(task, 1);
}

private class DataAdapter extends BaseAdapter {

    ArrayList<String> mArrs = new ArrayList<String>();

    @Override
    public int getCount() {
        if (mArrs != null)
            return mArrs.size();
        else
            return 0;
    }

    public void refreshDataAdapter() {
        if (mArrs != null)
            mArrs.clear();
        mArrs.addAll(GetData.mDatas);
    }

    @Override
    public Object getItem(int position) {

        return null;
    }

    @Override
    public long getItemId(int position) {

        return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if (convertView == null) {
            convertView = LayoutInflater.from(getActivity()).inflate(
                    R.layout.item, null);
        }
        int temp = mArrs.size() - 1 - position;// 倒序
        if (temp >= 0 && temp < mArrs.size()) {
            setItemValue(temp, convertView);
        }
        return convertView;
    }

    private void setItemValue(final int position, View convertView) {
        TextView releasetime = (TextView) convertView
                .findViewById(R.id.releasetime);
        releasetime.setText(mArrs.get(position));

    }

}

}

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你是否嵌套使用scrollview和listview？可能是因为listview高度需要重新计算

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1、
setItemValue(temp, convertView);
这里的temp是什么？
2、
refreshTask()应该在ListView.setAdapter(adapter);之后调用，会比较安全；
3、
尚不知道你的GetData.getData()会得到多少数据，所以建议你看看这个方法是否有问题，是否返回正确的数据。
4、
你的代码写的太不规范了，看着真令人头疼，变量的写法风格请统一规范一点！