Question

我正在开发一个Android应用程序。在这个应用程序中，我试图设置多个警报与用户的日期时间。我知道这可以使用广播接收器完成。这是我尝试过的代码：

private void setReminder(Calendar time){

    AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
    Intent alarmIntent = new Intent(getApplicationContext(), AlarmReceiver.class);
    alarmIntent.putExtra("name",teacherName);
    PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), 0, alarmIntent, 0);
    alarmManager.set(AlarmManager.RTC,time.getTimeInMillis(),pendingIntent);

}

但问题是它只适用于一个警报。当我设置多个警报时，警报响应最后一次用户使用第一个警报的结果设置。我该怎么做才能正确发射所有报警？一个完整示例的代码帮助了我很多。提前致谢

Answer 1

添加多个警报，如：

    private void setReminder(Calendar time){

        AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
        Intent alarmIntent = new Intent(getApplicationContext(), AlarmReceiver.class);
        alarmIntent.putExtra("name",teacherName); 
        PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), getRandom(), alarmIntent, 0);
        alarmManager.set(AlarmManager.RTC,time.getTimeInMillis(),pendingIntent);


    }

getRandon()功能

 private int getRandom() {
        Random random = new Random();

        return random.nextInt(99999) + 1;
    }

Answer 2

试试这段代码。使用for循环进行多次警报

AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
                ArrayList<PendingIntent> intentsArrayList = new ArrayList<PendingIntent>();

                for(i = 0; i < 5; ++i)
                {
                    Intent alarmIntent = new Intent(getApplicationContext(), AlarmReceiver.class);
                   // i the request code for every alarm with current position
                    PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), i, alarmIntent, 0);                       
                    alarmManager.set(AlarmManager.RTC,
                            time.getTimeInMillis() + 60000 * i,
                            pendingIntent);
                    alarmIntent.putExtra("name",teacherName+i);
                    intentsArrayList.add(pendingIntent);
                }

使用报警管理器在android中添加多个报警

2 个答案: