"AlarmManager 在 Android 8.1.0 中不起作用"

Question

My requirement is set Notification<\/code> for specific time like user birthday or holiday

    AlarmManager am = (AlarmManager) getApplicationContext().getSystemService(Context.ALARM_SERVICE);

    //creating a new intent specifying the broadcast receiver\

    Intent i = new Intent(this, HolidayBroadcast.class);
    i.putExtra("eventName",islamicHoliday.getEventName());
    i.putExtra("dateH", testTmp.getCalendar().getTimeInMillis());
    i.addFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES);
    //creating a pending intent using the intent
    PendingIntent pi = PendingIntent.getBroadcast(this, new Random().nextInt(), i, PendingIntent.FLAG_UPDATE_CURRENT);


    //setting alarm
    if(Build.VERSION.SDK_INT>= Build.VERSION_CODES.M) {
        am.setExactAndAllowWhileIdle(AlarmManager.RTC_WAKEUP,getTimeInMillis(), pi);
    }
    else
    {
        am.setExact(AlarmManager.RTC_WAKEUP, getTimeInMillis(), pi);
    }

Answer 1

You can use workmanager as mentioned in link.It supports all api version and easy to use because it uses backward compatibility to API level 14

https://developer.android.com/topic/libraries/architecture/workmanager

https://medium.com/androiddevelopers/introducing-workmanager-2083bcfc4712

Answer 2

如果您的任务对时间要求很高，则不建议使用 WorkManager API，因为您的警报管理器无法正常工作，在 Android 8 上使用AlarmManager.setexactandallowwhileidle()<\/code>来设置准确时间并允许在应用程序被终止时发出唤醒通知。

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