如何在Android中比较AM/PM时间

Question

我有一个场景

start-time = 4:15 PM
end-time = 2:00 AM 

如果我current-time(让我们说下午9:15采用与开始或结束时间相同的格式)介于两者之间start-time,end-time然后转到screen 1其他明智的转到screen 2

我的问题是如何将" current-time更大"或"等于"与"开始时间" 进行比较,将"等于"与"结束时间"进行比较.我试过将给定的时间值转换成milliseconds比较但是current-time = 9:15 PM看起来大于'结束时间=凌晨2:00',因为凌晨2点将在午夜之后出现意味着如果在晚上9:15 =星期四然后凌晨2点将是星期五'.我经常搜索,但无法弄清楚.任何类型的帮助将不胜感激.

编辑:

当前时间,开始时间和结束时间所有值均为 String

编辑2

代码spinet:

long currentTime = getMillis("9:15 PM");

long startTime = getMillis("4:15 PM");

long endTime = getMillis("2:00 AM");//this will be the next day's time confusing part for me

if(currentTime >= startTime && currentTime <= endTime)
{
   //goto screen 1
}
else
{
  // goto screen 2
}


private long getMillis(String givenTime)
{
   SimpleDateFormat sdf = new SimpleDateFormat("h:mm a");
try {
    Date mDate = sdf.parse(givenTime);
    long timeInMilliseconds = mDate.getTime();
    System.out.println("Date in milli :: " + timeInMilliseconds);
    return timeInMilliseconds;
} catch (ParseException e) {
            e.printStackTrace();
}
return 0;
}

Answer 1

第1步:当您的结束时间低于开始时间时, 您只需要添加一天.

第2步: 应用您的条件来检查当前时间是否落在开始时间和结束时间之间

    try {
        Date mToday = new Date();

        SimpleDateFormat sdf = new SimpleDateFormat("hh:mm aa");
        String curTime = sdf.format(mToday);
        Date start = sdf.parse("4:15 PM");
        Date end = sdf.parse("2:00 AM");
        Date userDate = sdf.parse(curTime);

        if(end.before(start))
        {
            Calendar mCal = Calendar.getInstance();
            mCal.setTime(end);
            mCal.add(Calendar.DAY_OF_YEAR, 1);
            end.setTime(mCal.getTimeInMillis());
        }

        Log.d("curTime", userDate.toString());
        Log.d("start", start.toString());
        Log.d("end", end.toString());


        if (userDate.after(start) && userDate.before(end)) {
            Log.d("result", "falls between start and end , go to screen 1 ");
        }
        else{
            Log.d("result", "does not fall between start and end , go to screen 2 ");
        }
    } catch (ParseException e) {
        // Invalid date was entered
    }