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我正在开发一个 android 应用程序，我在其中设置多个警报。警报可以设置一次，每天和每周。我将闹钟小时、分钟和上午/下午设置为

     Calendar alarmCalendar = Calendar.getInstance();
     alarmCalendar.set(Calendar.HOUR, 10);
     alarmCalendar.set(Calendar.MINUTE, 45);
     alarmCalendar.set(Calendar.SECOND, 0);
     alarmCalendar.set(Calendar.AM_PM, 0);

    Long alarmTime = alarmCalendar.getTimeInMillis();

如果时间经过，则以毫秒为单位进行比较

            if(alarmType.equalsIgnoreCase("daily"))
            {
                if (currenttime >= alarmTime)
                {
                    alarmTime+=86400000; // 1day in milliseconds
                }

                Intent intent = new Intent(Alarm.this, Reciever.class);
                intent.putExtra("keyValue", key);
                PendingIntent pi = PendingIntent.getBroadcast(Alarm.this, key, intent, PendingIntent.FLAG_UPDATE_CURRENT);
                am.setRepeating(AlarmManager.RTC_WAKEUP, alarmTime, AlarmManager.INTERVAL_DAY, pi); 
            }

            else if(alarmType.equalsIgnoreCase("weekly"))
            {
                if (currenttime >= alarmTime)
                {
                    alarmTime+=604800000;//1 week in milliseconds
                }

                Intent intent = new Intent(Alarm.this, Reciever.class);
                intent.putExtra("keyValue", key);
                PendingIntent pi = PendingIntent.getBroadcast(Alarm.this, key, intent, PendingIntent.FLAG_UPDATE_CURRENT);
                am.setRepeating(AlarmManager.RTC_WAKEUP, alarmTime, 604800000 , pi); 

            }

它在某些手机上工作正常，当闹钟时间过去时，每天和每周分别正确设置为第二天和下周。但是，问题是，在少数手机和平板电脑上，闹钟没有触发。任何人都可以说是什么问题。请帮助！谢谢！

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