如何设置闹钟重复每月 [英] how to set alarm to repeat monthly

问题描述

目前我工作的应用程序设置按月提醒。我不能为我的alarmmanager提供正确的重复间隔。请提供大约相同的信息。
这是我的code，但是这不会为二月或为30天的月份提高报警。
也请提供code设置重复每年alaram。

Currently I am working on an application to set reminders on monthly basis. I am not able to provide the correct repeating interval for my alarmmanager. Pls provide info about the same. this is my code, but this will not raise alarm for Feb or months having 30 days. Also pls provide code to set yearly repeating alaram.

repeatTime=(AlarmManager.INTERVAL_DAY*31);
mAlarmManager.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP, when.getTimeInMillis(), repeatTime, pi);

谢谢，
沙拉斯

Thanks, Sharath

推荐答案

这是你如何在extacly1个月今天的计算间隔后，用这种逻辑一旦触发复位报警每次。即设置报警点，当你想创业，提供一些悬而未决的意图，一旦触发报警低于code使用取得下一个触发时间，然后重新设置闹钟在那个时候触发。

this is how you calculate interval between today in extacly one month after, use this logic to reset alarm everytime once it triggers. i.e set alarm to the point when you want to start, supply some pending intent, once alarm triggers use below code to get next trigger time, and set alarm again to trigger at that time.

private long getDuration(){
    // get todays date
    Calendar cal = Calendar.getInstance();
    // get current month
    int currentMonth = cal.get(Calendar.MONTH);

    // move month ahead
    currentMonth++;
    // check if has not exceeded threshold of december

    if(currentMonth > Calendar.DECEMBER){
        // alright, reset month to jan and forward year by 1 e.g fro 2013 to 2014
        currentMonth = Calendar.JANUARY;
        // Move year ahead as well
        cal.set(Calendar.YEAR, cal.get(Calendar.YEAR)+1);
    }

    // reset calendar to next month
    cal.set(Calendar.MONTH, currentMonth);
    // get the maximum possible days in this month
    int maximumDay = cal.getActualMaximum(Calendar.DAY_OF_MONTH);

    // set the calendar to maximum day (e.g in case of fEB 28th, or leap 29th)
    cal.set(Calendar.DAY_OF_MONTH, maximumDay);
    long thenTime = cal.getTimeInMillis(); // this is time one month ahead



    return (thenTime); // this is what you set as trigger point time i.e one month after

}

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