Question

我尝试使用闹钟管理器在每天的特定时间运行闹钟。我正在使用此代码

Intent intent = new Intent(AlarmSettings.this, AlarmService.class);
                        intent.putExtra("i", i);
PendingIntent mAlarmSender = PendingIntent.getService(AlarmSettings.this, Id, intent, 0);

AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE);

am.setRepeating(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(),Calendar.getInstance().getTimeInMillis()+(24*60*60*1000), mAlarmSender);}

问题在于如果cal.getTimeInMillis（）值是过去的警报立即运行，我不知道为什么，并且当cal.getTimeInMillis（）值在将来它运行时正确。

我需要让它在每天的特定时间运行。

Answer 1

// every day at 9 am
Calendar calendar = Calendar.getInstance();

// if it's after or equal 9 am schedule for next day
if (Calendar.getInstance().get(Calendar.HOUR_OF_DAY) >= 9) {
    calendar.add(Calendar.DAY_OF_YEAR, 1); // add, not set!
}
calendar.set(Calendar.HOUR_OF_DAY, 9);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);

AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);

alarmManager.setInexactRepeating(AlarmManager.RTC, calendar.getTimeInMillis(),
            AlarmManager.INTERVAL_DAY, pi);

// alarmManager.setRepeating(AlarmManager.RTC, calendar.getTimeInMillis(),
// AlarmManager.INTERVAL_DAY, pi);

Answer 2

看起来像是对

的呼唤

setRepeating(int type, long triggerAtTime, long interval, PendingIntent operation)

尝试设置正确的triggerAtTime（将来） - 比如

Calendar.getInstance().getTimeInMillis()+(24*60*60*1000)

第三个参数（间隔）显然应该是你的间隔，比如

24*60*60*1000

Answer 3

这对我帮助很大，我有一个案例，我也在使用会议记录，并提出了以下小修正案：

/* Create calendar and set desired time before this*/

// Compare the current time milliseconds with the desired calendar time milliseconds
if (java.util.Calendar.getInstance().getTimeInMillis() >= 
            calendar.getTimeInMillis() ) {
    calendar.add(Calendar.DAY_OF_YEAR, 1);
}

每天在特定时间设置重复警报

3 个答案: