手动更改系统时间时如何停止Android AlarmManager？

本文介绍了手动更改系统时间时如何停止Android AlarmManager？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

这里是问题的扩展示例。现在是1:30 AM。警报设置为今天晚些时候，上午10点。我昨天将手机时间更改为1159PM。警报管理器会在错误的时间立即触发。

Here is an extended example of the problem. It is 1:30AM. Alarm is set for later today, at 10AM. I change my phones time to 1159PM yesterday. Alarm Manager instantly triggers, at the wrong time.

如果时间已过去，如何阻止警报管理器响铃？

How do I stop the AlarmManager from ringing if the time is in the past?

但是，如果我更改时间，则什么也不会发生。

If however, I change the time forward, nothing happens.

我不希望这种情况发生在我的应用程序中，因为其他警报应用程序不会发生这种情况。有没有一种方法可以确保警报管理器仅在设置的确切时间响铃（如果不跳过它）？

I do not want this to happen with my app, as it does not happen with other Alarm apps. Is there a way to make sure that the Alarm manager only rings at the exact minute it is set (if not skip it)?

这是我的警报管理器代码。

Here is my Alarm Manager code.

Calendar alarmCal = closestAlarm.toCalendar(); Intent alarmIntent = new Intent(this, ActiveAlarmService.class); alarmIntent.putExtra("alarm", closest); pendingAlarm = PendingIntent.getService(AlarmService.this, 0, alarmIntent, PendingIntent.FLAG_CANCEL_CURRENT); alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE); alarmManager.set(AlarmManager.RTC_WAKEUP, alarmCal.getTimeInMillis(), pendingAlarm);

我尝试使用BroadcasetReceiver捕获时间/日期更改事件，但是滞后时间太多

I have tried using a BroadcasetReceiver to catch the Time/Date change events, but there is too much lag between the broadcast, and the AlarmManager firing because it is set in the past.

推荐答案

我已经找到了解决方法。感觉很奇怪，但是很扎实。

I have found the solution. It feels odd, but it is solid.

这是我最初使用的内容。

Here is what I was using originally.

alarmManager.set(AlarmManager.RTC_WAKEUP, alarmTimeCalendar.getTimeInMillis(), pendingAlarmIntent);

这就是解决方案。

alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, alarmTimeCalendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pendingAlarmIntent);

您必须像管理第一种方法一样管理和取消此AlarmManager。如果您忘记了，闹钟会在不应该响起时响起。

You will have to manage and cancel this AlarmManager as if it was the first method. If you forget, your alarm will ring when it should not.