Spinner的使用

private Spinner mSpinner；

mSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
    @Override
    public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
        String[] languages = getResources().getStringArray(R.array.languages);
        switch (languages[position]) {
            case "今天":
                String nowDateTime = getDate.getNowDateTime();
                infoList = selectVisitorInfoByDate(nowDateTime);
                adapter.notifyDataSetChanged();
                mTvNameCount.setText("统计记录: " + infoList.size() + " 条 ");
                break;
            case "本周":
                String week = getDate.getMondayOFWeek();
                infoList = selectVisitorInfoByDate(week);
                adapter.notifyDataSetChanged();
                mTvNameCount.setText("统计记录: " + infoList.size() + " 条 ");
                break;
            case "本月":
                String dayOfMonth = getDate.getFirstDayOfMonth();
                infoList = selectVisitorInfoByDate(dayOfMonth);
                adapter.notifyDataSetChanged();
                mTvNameCount.setText("统计记录: " + infoList.size() + " 条 ");
                break;
            case "全部":
                infoList = queryUserList();
                adapter.notifyDataSetChanged();
                mTvNameCount.setText("统计记录: " + infoList.size() + " 条 ");
                break;

        }