Question

我试图让我的每日通知服务正常工作，但我遇到了问题。

我应该只在当天的某个特定时间收到通知，但我注意到了

if (time_that_i_set_for_notification < current_time_of_the_day) notification triggers at the boot of my app

这是错误的，因为在这种情况下，通知应该仅在第二天触发，而不是在我启动应用的瞬间。

我试图让事情发挥作用：

我在我的MainActivity，onCreate（）方法中调用它：

private void scheduleNotification(int hour, int minute){
    Intent notificationIntent = new Intent(this, NotificationReceiver.class);
    notificationIntent.putExtra("notifId", notifId);

    PendingIntent pendingIntent = PendingIntent.getBroadcast(this, notifId, notificationIntent, 0);

// Set the alarm to start at approximately at a time
        DatePicker datePicker = new DatePicker(this);
        Calendar calendar = Calendar.getInstance();
        calendar.setTimeInMillis(System.currentTimeMillis());
        calendar.set(Calendar.DAY_OF_MONTH, datePicker.getDayOfMonth());
        if(calendar.getTime().compareTo(new Date()) < 0) calendar.add(Calendar.DAY_OF_MONTH, 1);
        calendar.set(Calendar.HOUR_OF_DAY, 12);
        calendar.set(Calendar.MINUTE, 12);

        AlarmManager alarmManager = (AlarmManager) this.getSystemService(Context.ALARM_SERVICE);
// With setInexactRepeating(), you have to use one of the AlarmManager interval
// constants--in this case, AlarmManager.INTERVAL_DAY.
        alarmManager.setInexactRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
                AlarmManager.INTERVAL_DAY, pendingIntent);
    }

我认为添加if(calendar.getTime().compareTo(new Date()) < 0) calendar.add(Calendar.DAY_OF_MONTH, 1);我会获得我需要的结果。

谢谢你，祝你有愉快的一天。

Answer 1

在致电setInexactRepeating之前，请添加此项检查：

if (calendar.getTimeInMillis() < System.currentTimeMillis())
    calendar.setTimeInMillis(calendar.getTimeInMillis() + AlarmManager.INTERVAL_DAY);

希望这有帮助。

Answer 2

好的，那里检查错了，如果你改了它，你应该能够解决你的问题。

我们走了：

Intent notificationIntent = new Intent(this, NotificationReceiver.class);
    notificationIntent.putExtra("notifId", notifId);

    PendingIntent pendingIntent = PendingIntent.getBroadcast(this, notifId, notificationIntent, 0);

// Set the alarm to start at approximately at a time
        DatePicker datePicker = new DatePicker(this);
        Calendar calendar = Calendar.getInstance();
        calendar.setTimeInMillis(System.currentTimeMillis());
        calendar.set(Calendar.DAY_OF_MONTH, datePicker.getDayOfMonth());
        //if(calendar.getTime().compareTo(new Date()) < 0) calendar.add(Calendar.DAY_OF_MONTH, 1);
        calendar.set(Calendar.HOUR_OF_DAY, 14);
        calendar.set(Calendar.MINUTE, 50);
        if (calendar.getTimeInMillis() < System.currentTimeMillis()) calendar.setTimeInMillis(calendar.getTimeInMillis() + AlarmManager.INTERVAL_DAY);
        AlarmManager alarmManager = (AlarmManager) this.getSystemService(Context.ALARM_SERVICE);
// With setInexactRepeating(), you have to use one of the AlarmManager interval
// constants--in this case, AlarmManager.INTERVAL_DAY.

    alarmManager.setInexactRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
            AlarmManager.INTERVAL_DAY, pendingIntent);

我评论//if(calendar.getTime().compareTo(new Date()) < 0) calendar.add(Calendar.DAY_OF_MONTH, 1);，因为它应该是不必要的。

让我知道它是否有效。

更新：您应该完全检查处理日常通知的服务是否消耗很高。高耗电电池应用会让您的用户感到烦恼。

Android Notification在应用程序启动时触发

2 个答案: