iPhone:如何设置重复每日/每小时本地通知？

Question

我想测试添加本地通知.我希望它每天/每小时重复一次.我怎样才能做到这一点？

NSCalendar *calendar = [NSCalendar autoupdatingCurrentCalendar];

 // Get the current date
    NSDate *now = [NSDate date];

 // Break the date up into components
NSDateComponents *dateComponents = [calendar components:( NSYearCalendarUnit |       NSMonthCalendarUnit |  NSDayCalendarUnit )
           fromDate:now];

NSDateComponents *timeComponents = [calendar components:( NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit)
           fromDate:now];


 // Set up the fire time
NSDateComponents *dateComps = [[NSDateComponents alloc] init];

[dateComps setDay:[dateComponents day]];
[dateComps setMonth:[dateComponents month]];
[dateComps setYear:[dateComponents year]];

[dateComps setHour:[timeComponents hour]];
 [dateComps setMinute:[timeComponents minute]];
 [dateComps setSecond:[timeComponents second]+10];

 // Notification will fire in one minute

NSDate *itemDate = [calendar dateFromComponents:dateComps];
[dateComps release];

UILocalNotification *localNotif = [[UILocalNotification alloc] init];
if (localNotif == nil)
    return;

localNotif.fireDate = itemDate;
localNotif.timeZone = [NSTimeZone defaultTimeZone];

 // Notification details
localNotif.alertBody = @"Hello World";

 // Set the action button
localNotif.alertAction = @"View";
localNotif.soundName = UILocalNotificationDefaultSoundName;

applicationIconBadgeNumber++;

localNotif.applicationIconBadgeNumber = applicationIconBadgeNumber;

 // Schedule the notification
[[UIApplication sharedApplication] scheduleLocalNotification:localNotif];
[localNotif release];

Answer 1

如果你想在每天的特定时间设置通知....然后你需要设置通知的repeatInterval属性.iOS处理它; s拥有关于通知.只需添加这一行......你错过了.否则你的代码很好并且会起作用.

notif.repeatInterval = NSDayCalendarUnit;