NSUserDefaults +本地通知

Question

我在我的應用程序中使用提醒的本地通知。我需要使用名稱設置任何鬧鐘，以便僅針對每項活動發出警報。我會使用NSUserDefaults來獲得鍵值。現在我使用這個系統，不允許我這樣做。

-(void)scheduleAlarm:(id)sender { 

NSCalendar *calendar = [NSCalendar autoupdatingCurrentCalendar]; 

// Get the current date 
NSDate *pickerDate = [datePicker date]; 

// Break the date up into components 
NSDateComponents *dateComponents = [calendar components:(NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit) 
               fromDate:pickerDate]; 
NSDateComponents *timeComponents = [calendar components:(NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit) 
               fromDate:pickerDate]; 

// 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]]; 
// Notification will fire in one minute 
[dateComps setMinute:[timeComponents minute]]; 
[dateComps setSecond:[timeComponents second]]; 
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 = [mainTitle text]; 
// Set the action button 
localNotif.alertAction = @"View"; 

localNotif.soundName = UILocalNotificationDefaultSoundName; 

// Specify custom data for the notification 
NSDictionary *infoDict = [NSDictionary dictionaryWithObject:@"someValue" forKey:@"someKey"]; 
localNotif.userInfo = infoDict; 

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





} 

非常感謝！

Answer 1

擁有NSUserDefaults的此實例方法：

- (NSDictionary *)dictionaryForKey:(NSString *)defaultName 

爲什麼不能用它來返回您需要爲您的本地通知的userInfo屬性字典？