Objective c 每天在特定时间安排UILocalNotification

我使用下面的代码在特定时间安排一个本地通知。但通知每分钟都在重复，而不是一天之后。我是否错过了任何通知设置。我的时区是（亚洲/加尔各答（IST）偏移量19800），并且使用iPhone 4s

- (void)applicationDidEnterBackground:(UIApplication *)application
{     
    NSCalendar *calendar = [NSCalendar autoupdatingCurrentCalendar] ;
    NSDate *now = [NSDate date];
    NSDateComponents *components = [calendar components:(NSCalendarUnitYear | NSCalendarUnitMonth |  NSCalendarUnitDay | NSCalendarUnitHour | NSCalendarUnitMinute) fromDate:now]; 
    [components setHour:12];
    [components setMinute:00];

    UILocalNotification *notification = [[UILocalNotification alloc]init];
    notification.fireDate = [calendar dateFromComponents:components];
    [notification setAlertBody:@"U got notification!!!"];
    // notification.soundName = UILocalNotificationDefaultSoundName;
    [[UIApplication sharedApplication] scheduleLocalNotification:notification]; 
}

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您应该指定

repeatInterval

- (void)applicationDidEnterBackground:(UIApplication *)application
{     
    NSCalendar *calendar = [NSCalendar autoupdatingCurrentCalendar] ;
    NSDate *now = [NSDate date];
    NSDateComponents *components = [calendar components:(NSCalendarUnitYear | NSCalendarUnitMonth |  NSCalendarUnitDay | NSCalendarUnitHour | NSCalendarUnitMinute) fromDate:now]; 
    [components setHour:12];
    [components setMinute:00];

    UILocalNotification *notification = [[UILocalNotification alloc]init];
    notification.fireDate = [calendar dateFromComponents:components];
    notification.repeatInterval = NSDayCalendarUnit;
    [notification setAlertBody:@"U got notification!!!"];
    // notification.soundName = UILocalNotificationDefaultSoundName;
    [[UIApplication sharedApplication] scheduleLocalNotification:notification]; 
}

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使用localnotification的repeatinterval属性localnotification.repeatinterval=NSCalendarUnitDay；你也会得到帮助@[Sviatoslav Yakymiv]这意味着通知将在每天12:00触发？@Nitesh是的。当日期是数组的索引时，如何根据数组中的不同时间重复通知，以设置在数组中给定的时间自动每天通知我array@SviatoslavYakymiv如果我有小时数列和分钟数列，想每天重复一次，请看一下这个问题