java - Android 中的日历对象

Question

 Calendar cal = Calendar.getInstance();
 cal.add(Calendar.SECOND, 10);
 Intent intent = new Intent(Login_activity.this, EnqueryNotification_Service.class);
 PendingIntent pintent = PendingIntent.getService(Login_activity.this, 0, intent, 0);
 AlarmManager alarm = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
 alarm.setRepeating(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), 36000 * 1000, pintent);

这个 cal.add(Calendar.SECOND, 10); 10 代表什么？

Answer 1

cal.add(Calendar.SECOND, 10); 向当前日历实例添加 10 秒。