我创建了多个 UI 本地通知,例如 100 个。我有一组 UILocalNotifications,它们被安排为:
-(void) scheduleNotification{
AppDelegate *delegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
NSDateFormatter *formatter = [[NSDateFormatter alloc]init];
[[UIApplication sharedApplication] cancelAllLocalNotifications];
[self.notifications removeAllObjects];
for (int i = 0; i< [delegate.viewController.contactList count] ; i++) {
UILocalNotification *localNotification = [[UILocalNotification alloc] init];
NSString *name = [[delegate.viewController.contactList objectAtIndex:i]objectForKey:NAME_KEY];
NSString *birthday = [[delegate.viewController.contactList objectAtIndex:i]objectForKey:BIRTHDAY_KEY];
if (birthday) {
[formatter setDateFormat:@"MM/dd/yyyy"];
[formatter setLocale:[NSLocale currentLocale]];
[formatter setTimeZone:[NSTimeZone systemTimeZone]];
NSDate *date = [formatter dateFromString:birthday];
if (date == nil) {
[formatter setDateFormat:@"MM/dd"];
[formatter setLocale:[NSLocale currentLocale]];
[formatter setTimeZone:[NSTimeZone systemTimeZone]];
date = [formatter dateFromString:birthday];
}
NSCalendar *gregorianEnd = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *componentsEnd = [gregorianEnd components:NSWeekdayCalendarUnit | NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit fromDate:date];
componentsEnd.year = [[NSDate date] year];
date = [gregorianEnd dateFromComponents:componentsEnd];
self.alarmTime = [date dateByAddingTimeInterval:self.mTimeInterval];
localNotification.fireDate = _alarmTime;
localNotification.timeZone = [NSTimeZone defaultTimeZone];
localNotification.applicationIconBadgeNumber = 1;
NSString *itemName = @"B'day Alert!!!";
NSString *msgName = [NSString stringWithFormat:@"Celebrate %@'s B'day",name];
NSDictionary *userDict = [NSDictionary dictionaryWithObjectsAndKeys:itemName,MessageKey, msgName,TitleKey, nil];
localNotification.userInfo = userDict;
localNotification.soundName = self.soundName;
localNotification.alertBody = [NSString stringWithFormat:@"Celebrate %@'s B'day",name];
[self.notifications addObject:localNotification];
}
}
}
}
我已将我的applicationDidEnterBackground
代表实现为:
- (void)applicationDidEnterBackground:(UIApplication *)application
{
UILocalNotification* notification;
for (int i = 0; i< [self.settingVC.notifications count]; i++) {
notification = [self.settingVC.notifications objectAtIndex:i];
[[UIApplication sharedApplication] scheduleLocalNotification:notification];
}
}
另外,在didReceiveLocalNotification
委托中,我有这个:
- (void)application:(UIApplication *)application
didReceiveLocalNotification:(UILocalNotification *)notification
{
NSString *itemName = [notification.userInfo objectForKey:TitleKey];
NSString *messageTitle = [notification.userInfo objectForKey:MessageKey];
[self _showAlert:itemName withTitle:messageTitle];
application.applicationIconBadgeNumber = notification.applicationIconBadgeNumber-1;
}
但问题是我没有得到想要的输出。任何帮助将不胜感激。我知道在一个应用程序中只能有有限数量的预定通知;系统保留最快触发的 64 条通知并丢弃其余通知。那么,我将如何处理那 100 个或更多的 UILocalNotification?