android - 如果应用程序被卸载，应用程序通过警报管理器设置的警报会发生什么情况

Question

我有以下代码可以从我的应用程序设置警报。

Intent intent = new Intent("MY_ALARM_NOTIFICATION");
intent.setClass(myActivity.this, OnAlarmReceive.class);
intent.putExtra("id", id);


PendingIntent pendingIntent = PendingIntent.getBroadcast(
                myActivity.this, Integer.parseInt(id),
                intent, PendingIntent.FLAG_UPDATE_CURRENT);

Calendar timeCal = Calendar.getInstance();
timeCal.set(Calendar.HOUR_OF_DAY, hour);
timeCal.set(Calendar.MINUTE, minutes);
timeCal.set(Calendar.DAY_OF_MONTH, day);
timeCal.set(Calendar.MONTH, month - 1);
timeCal.set(Calendar.YEAR, year);

Date date = timeCal.getTime();

AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP, timeCal.getTimeInMillis(), pendingIntent);

当我从设置中删除我的应用程序时会发生什么？警报是否仍然存在？

Answer 1

当您安排的活动AlarmManager被卸载时，您安排的活动将被删除。

Answer 2

如果您希望提醒在卸载后仍然存在，您需要将它们添加到用户的 Google 日历（或创建日历）中

  Intent intent = new Intent(Intent.ACTION_INSERT)
            .setData(CalendarContract.Events.CONTENT_URI)
            .putExtra(CalendarContract.EXTRA_EVENT_BEGIN_TIME, reminderDateTime.getMillis())
            .putExtra(CalendarContract.EXTRA_EVENT_END_TIME, reminderDateTime.getMillis())
            .putExtra(CalendarContract.Events.TITLE, "TITLE"
            .putExtra(CalendarContract.Events.DESCRIPTION, eventDescription)
            .putExtra(CalendarContract.Events.HAS_ALARM, true)
            .putExtra(CalendarContract.Events.ALLOWED_REMINDERS, new int[]{CalendarContract.Reminders.METHOD_ALARM, CalendarContract.Reminders.METHOD_ALERT})
            .putExtra(CalendarContract.Events.AVAILABILITY, CalendarContract.Events.AVAILABILITY_BUSY);