Question

我在我的Android应用程序中有一个列表视图，其中我显示间隔30分钟的列表。我正在使用此函数将数据硬编码到列表视图中

    public void prepareTime() {
    ListModel listModel = new ListModel("00:30 A.M");
    listModelsList.add(listModel);

    listModel = new ListModel("01:00 A.M");
    listModelsList.add(listModel);
    listModel = new ListModel("01:30 A.M");
    listModelsList.add(listModel);
    listModel = new ListModel("02:00 A.M");
    listModelsList.add(listModel);
    listModel = new ListModel("02:30 A.M");
    listModelsList.add(listModel);
    listModel = new ListModel("03:00 A.M");
    listModelsList.add(listModel);
    listModel = new ListModel("03:30 A.M");
    listModelsList.add(listModel);
    listModel = new ListModel("04:00 A.M");
    listModelsList.add(listModel);
    listModel = new ListModel("04:30 A.M");
    listModelsList.add(listModel);
    listModel = new ListModel("05:00 A.M");
    listModelsList.add(listModel);
    listModel = new ListModel("05:30 A.M");
    listModelsList.add(listModel);
    listModel = new ListModel("06:00 A.M");
    listModelsList.add(listModel);
    listModel = new ListModel("06:30 A.M");
    listModelsList.add(listModel);
ListsAdapter listAdapter = new ListsAdapter(getApplicationContext(), listModelsList);
    list.setAdapter(listAdapter);
}

但我想使用移动时区以30分钟的间隔将数据添加到列表中。我怎样才能做到这一点？

Answer 1

搜索结束后，我得到了问题的答案。

 private void displayTimeSlots() {

    String timeValue = "T00:00:4.896+05:30";
    SimpleDateFormat sdf = new SimpleDateFormat("'T'hh:mm:ss.SSS");
    try {
        Calendar startCalendar = Calendar.getInstance();
        startCalendar.setTime(sdf.parse(timeValue));

        if (startCalendar.get(Calendar.MINUTE) < 30) {
            startCalendar.set(Calendar.MINUTE, 30);
        } else {
            startCalendar.add(Calendar.MINUTE, 30); // overstep hour and clear minutes
            startCalendar.clear(Calendar.MINUTE);
        }

        Calendar endCalendar = Calendar.getInstance();
        endCalendar.setTime(startCalendar.getTime());

        // if you want dates for whole next day, uncomment next line
        //endCalendar.add(Calendar.DAY_OF_YEAR, 1);
        endCalendar.add(Calendar.HOUR_OF_DAY, 24 - startCalendar.get(Calendar.HOUR_OF_DAY));

        endCalendar.clear(Calendar.MINUTE);
        endCalendar.clear(Calendar.SECOND);
        endCalendar.clear(Calendar.MILLISECOND);

        SimpleDateFormat slotTime = new SimpleDateFormat("hh:mm a");
        while (endCalendar.after(startCalendar)) {

            startCalendar.add(Calendar.MINUTE, 30);
            String slotEndTime = slotTime.format(startCalendar.getTime());

            ListModel listModel = new ListModel(slotEndTime);
            listModelsList.add(listModel);

            ListsAdapter listAdapter = new ListsAdapter(getApplicationContext(), listModelsList);
            list.setAdapter(listAdapter);
            Log.e("DATE", slotEndTime);
        }

    } catch (ParseException e) {
        // date in wrong format
    }
}

列表视图中30分钟间隔后的时钟时间

1 个答案: