待定意图仅适用于 1 个警报

Question

目前，我有一个使用pendingIntennt 的警报，该警报在按下按钮（保存警报）时起作用。问题是，当我安排并保存了多个警报时，将响起的警报只是最新的警报。我怎样才能做到这样所有的警报都会响起？

这是按钮内部的代码：

public void saveReminder(View v) {

    final int reminderHour = mReminderTimePicker.getCurrentHour().intValue();
    final int reminderMinute = mReminderTimePicker.getCurrentMinute().intValue();
    final String reminderName = mReminderName.getText().toString();
    final boolean reminderStatus = mReminderSwitchSwitch.isChecked();

    //AlarmManagerHelper.cancelAlarms(this);
    //Updating Reminder Information
    ParseQuery<ParseObject> query = ParseQuery.getQuery("MyReminders");
    query.getInBackground(objectId, new GetCallback<ParseObject>() {
        public void done(ParseObject reminderObject, ParseException e) {
            if (e == null) {
                reminderObject.put("reminderName", reminderName);
                reminderObject.put("reminderHour", reminderHour);
                reminderObject.put("reminderMinute", reminderMinute);
                reminderObject.put("reminderStatus", reminderStatus);
                reminderObject.saveInBackground();
            }
        }
    });
    //set time into calendar instance
    GregorianCalendar calendar= new GregorianCalendar();
    calendar.set(GregorianCalendar.HOUR_OF_DAY,reminderHour);
    calendar.set(GregorianCalendar.MINUTE,reminderMinute);
    calendar.set(GregorianCalendar.SECOND,00);
    calendar.set(GregorianCalendar.MILLISECOND,0000);

    AlarmManager reminder = (AlarmManager)getSystemService(Context.ALARM_SERVICE);


    Intent reminderintent = new Intent(this, ReminderService.class);
    //push information to reminder screen
    reminderintent.putExtra("reminderName", reminderName);
    reminderintent.putExtra("reminderHour", reminderHour);
    reminderintent.putExtra("reminderMinute", reminderMinute);


    PendingIntent operation = PendingIntent.getActivity(getBaseContext(), 1, reminderintent, PendingIntent.FLAG_UPDATE_CURRENT);
    reminder.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), operation);


    finish();
}

Answer 1

您的所有闹钟似乎都使用相同的 requestCode 1，因此每次设置闹钟时，它都会在您调用 PendingIntent.getActivity() 时覆盖之前的闹钟。

您需要一种为每个警报设置唯一 ID 的方法。

使用 objectId 字符串，您可以通过将字符串中的所有字符相加来生成唯一 ID：

    int id = 0;
    for (int i = 0; i < objectId.length(); i++){
        id += objectId.charAt(i);
    }

    PendingIntent operation = PendingIntent.getActivity(getBaseContext(), id, reminderintent, PendingIntent.FLAG_UPDATE_CURRENT);
    reminder.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), operation);