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我对两个日历进行了比较：年月日是当前的年月日：但是如果第一个日历的时间在当前时间之后日历等待到该时间并开始响铃，则结果不如预期但如果它在当前时间之前日历直接开始响铃所以它总是访问第二个条件：

public void scheduleAlarm()
{
//to initialize the time variable not a real value:
Long time=Long.parseLong("0");

 int hour=calendar.get(Calendar.HOUR);
 int minute=calendar.get(Calendar.MINUTE);
 Calendar cal_now = new GregorianCalendar(Year,Month,Day, hour, minute,Calendar.SECOND);
 Calendar cal_alarm_first=new GregorianCalendar(Year,Month,Day,21,14,0);



 //if the first calendar is in the past increment its day by one:
  if(cal_alarm_first.before(cal_now)){
  Notif_Body=getResources().getString(R.string.remembrance_body_first);     
  //here if the first alarm is already gone I should add a day and it should ring after a day from now with the specified hour and minute...           
  cal_alarm_first.add(Calendar.DATE, 1);                 
  time=cal_alarm_first.getTimeInMillis();

    }                                  


    else if(cal_alarm_first.after(cal_now)){
    //the problem is here it always access this condition even if the first calendar time is before the current time for example same date but the first calendar is 9:14 and current time is 9:17 it always access this condition and the alarm starts ringing...       
     Notif_Body=getResources().getString(R.string.remembrance_body_first);
     time=cal_alarm_first.getTimeInMillis();

       }



     //to send this alarm to be retrieved by the broadcast receiver class:
     Intent intentAlarm = new Intent(this, TimeAlarm.class);

     //add the notification body to the intent:
     intentAlarm.putExtra("Notif_body", Notif_Body);

     // create the object
     AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);

     //set the alarm for particular time
     alarmManager.set(AlarmManager.RTC_WAKEUP,time, PendingIntent.getBroadcast(this,1,intentAlarm, PendingIntent.FLAG_UPDATE_CURRENT));

                            }

实在想不通是什么问题！！谢谢。

编辑： 所以这个意外结果的原因是因为 24 小时格式我正在以 24 小时格式添加第一个日历的时间，而当前时间将其时间设置为 12 小时格式，因此需要在 24 小时内获取它们格式;

Edit2： 所以我改变了

int hour=calendar.get(Calendar.HOUR);//12 hours

至

int hour=calendar.get(Calendar.HOUROFDAY);//24 hours

如果它真的有效，基本上工作将添加它作为答案......

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1 回答 1

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这个意外结果的原因是因为 24 小时格式我正在以 24 小时格式添加第一个日历的时间，而当前时间将其时间设置为 12 小时格式，因此需要将它们都设置为 24 小时格式；所以我改变了：

int hour=calendar.get(Calendar.HOUR);//12 hours

至

int hour=calendar.get(Calendar.HOUROFDAY);//24 hours

它奏效了！！

于 2013-11-03T10:30:04.683 回答