Question

在我的应用中，我有一个LocalNotification。我从DatePicker获得了开火时间，我希望LocalNotification在特定时间（我从UIPickerView获取）和周六以外的所有工作日开始。

修改

    UIDatePicker *picker = [[UIDatePicker alloc]init];
    [picker setTag:kDatePickerTag];


    for (int i = 0; i < 7; i++) {
        NSDate *today = [NSDate date];

         NSCalendar *gregorianCalendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
        NSDate *scheduleDate = [**picker.date** dateByAddingTimeInterval:(i * 24.0f * 3600.0f)];
        NSDateComponents *componentsForEachDay = [gregorianCalendar components:NSWeekdayCalendarUnit fromDate:scheduleDate];
        if (componentsForEachDay.weekday != 7) { // To skip Saturday

            UILocalNotification *localNotification = [[UILocalNotification alloc] init];
            localNotification.repeatInterval = NSWeekCalendarUnit;
            localNotification.fireDate = picker.date;
            localNotification.timeZone = [NSTimeZone defaultTimeZone];
            localNotification.alertBody = @"test message";
            localNotification.soundName = UILocalNotificationDefaultSoundName;
            localNotification.applicationIconBadgeNumber = 1;

            [[UIApplication sharedApplication] scheduleLocalNotification:localNotification];

我有这个代码到目前为止，但现在我必须设置开火时间，我不知道如何合并我的picker.date给我时间和weedDay给我一天。我需要两个是相同的NSDate对象。任何想法？

Answer 1

LocalNotifications只有四个InBuilt Intervals，

他们是

case 1:
    notif.repeatInterval = NSMonthCalendarUnit;// monthly
    break;
  case 2:
    notif.repeatInterval = NSYearCalendarUnit;// yearly
    break;
  case 3:
    notif.repeatInterval = NSDayCalendarUnit;//Daily
    break;
  case 4:
    notif.repeatInterval = NSWeekCalendarUnit;// weekly

您无法使用LocalNotifications定义自定义间隔，您可能必须创建自己的逻辑来执行此操作

Answer 2

如果你想跳过星期六，你必须为其他6天中的每一天设置一个通知，并让它在一周内重复。

NSCalendar *gregorianCalendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
    for (int i = 0; i < 7; i++) {
        NSDate *scheduleDate = [firstScheduledDate dateByAddingTimeInterval:(i * 24.0f * 3600.0f)];
        NSDateComponents *componentsForEachDay = [gregorianCalendar components:NSWeekdayCalendarUnit fromDate:scheduleDate];
        if (componentsForEachDay.weekday != 7) { // To skip Saturday

            UILocalNotification *localNotification = [[UILocalNotification alloc] init];
            localNotification.repeatInterval = NSWeekCalendarUnit;
            localNotification.fireDate = FIRE_DATE;
            localNotification.timeZone = [NSTimeZone defaultTimeZone];
            localNotification.alertBody = YOUR_NOTIFICATION_MESSAGE;
            localNotification.soundName = UILocalNotificationDefaultSoundName;

            [[UIApplication sharedApplication] scheduleLocalNotification:localNotification];
        }
    }

除1天外，UILocalNotification在特定时间全周开火

2 个答案: