报警管理器INTERVAL_DAY无法正常工作

Question

我希望每天早上8点运行一些代码.我在MainActivity中的onCreate中有这段代码

    Calendar cal = Calendar.getInstance();
    cal.set(Calendar.HOUR_OF_DAY, 8);
    cal.set(Calendar.MINUTE, 0);
    cal.set(Calendar.SECOND, 0);

    Intent intent = new Intent(this, PriceAmountService.class);
    PendingIntent pintent = PendingIntent.getService(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);

    AlarmManager alarm = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
    alarm.setInexactRepeating(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pintent);

但每次启动应用程序时,这都会运行.我的代码是好还是错？此代码是否在正确的位置(onCreate)？我做错了什么？

我的最小API是14

Answer 1

感谢Doug Stevenson,我通过向我的方法添加简单的if来解决这个问题.我在上午8点完全提高工作的方法是:

    Calendar cal = Calendar.getInstance();
    cal.set(Calendar.HOUR_OF_DAY, 8);
    cal.set(Calendar.MINUTE, 0);
    cal.set(Calendar.SECOND, 0);

    if (Calendar.getInstance().after(cal)) {
        cal.add(Calendar.DAY_OF_MONTH, 1);
    }

    Intent intent = new Intent(this, PriceAmountService.class);
    PendingIntent pintent = PendingIntent.getService(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);

    AlarmManager alarm = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
    alarm.setInexactRepeating(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pintent);