สำหรับการเตือนซ้ำ (ตัวอย่างเช่นคุณต้องการให้สัญญาณเตือนดังในวันอาทิตย์วันเสาร์และวันพุธเวลา 16.00 น. จากนั้นคุณต้องทำการปลุก 3 ครั้งและตั้งค่า repeatInterval เป็น NSWeekCalendarUnit)
สำหรับการแจ้งเตือนครั้งเดียวเท่านั้น:
UILocalNotification *aNotification = [[UILocalNotification alloc] init];
aNotification.timeZone = [NSTimeZone defaultTimeZone];
aNotification.alertBody = _reminderTitle.text;
aNotification.alertAction = @"Show me!";
aNotification.soundName = UILocalNotificationDefaultSoundName;
aNotification.applicationIconBadgeNumber += 1;
NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *componentsForFireDate = [calendar components:(NSYearCalendarUnit | NSWeekCalendarUnit| NSHourCalendarUnit | NSMinuteCalendarUnit| NSSecondCalendarUnit | NSWeekdayCalendarUnit) fromDate: _reminderDate];
[componentsForFireDate setHour: [componentsForFireDate hour]] ;
[componentsForFireDate setMinute:[componentsForFireDate minute]];
[componentsForFireDate setSecond:0] ;
NSDate *fireDateOfNotification = [calendar dateFromComponents: componentsForFireDate];
aNotification.fireDate = fireDateOfNotification;
NSDictionary *infoDict = [NSDictionary dictionaryWithObject:_reminderTitle.text forKey:kRemindMeNotificationDataKey];
aNotification.userInfo = infoDict;
[[UIApplication sharedApplication] scheduleLocalNotification:aNotification];
สำหรับการแจ้งเตือนซ้ำ:
for (int i = 0 ; i <reminderDaysArr.count; i++)
{
UILocalNotification *aNotification = [[UILocalNotification alloc] init];
aNotification.timeZone = [NSTimeZone defaultTimeZone];
aNotification.alertBody = _reminderTitle.text;
aNotification.alertAction = @"Show me!";
aNotification.soundName = UILocalNotificationDefaultSoundName;
aNotification.applicationIconBadgeNumber += 1;
NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *componentsForFireDate = [calendar components:(NSYearCalendarUnit | NSWeekCalendarUnit| NSHourCalendarUnit | NSMinuteCalendarUnit| NSSecondCalendarUnit | NSWeekdayCalendarUnit) fromDate: _reminderDate];
[componentsForFireDate setWeekday: [[reminderDaysArr objectAtIndex:i]integerValue]];
[componentsForFireDate setHour: [componentsForFireDate hour]] ;
[componentsForFireDate setMinute:[componentsForFireDate minute]];
[componentsForFireDate setSecond:0] ;
NSDate *fireDateOfNotification = [calendar dateFromComponents: componentsForFireDate];
aNotification.fireDate = fireDateOfNotification;
aNotification.repeatInterval = NSWeekCalendarUnit;
NSDictionary *infoDict = [NSDictionary dictionaryWithObject:_reminderTitle.text forKey:kRemindMeNotificationDataKey];
aNotification.userInfo = infoDict;
[[UIApplication sharedApplication] scheduleLocalNotification:aNotification];
}
}
สำหรับการกรองอาร์เรย์ให้คุณแสดง
-(void)filterNotficationsArray:(NSMutableArray*) notificationArray{
_dataArray = [[NSMutableArray alloc]initWithArray:[[UIApplication sharedApplication] scheduledLocalNotifications]];
NSMutableArray *uniqueArray = [NSMutableArray array];
NSMutableSet *names = [NSMutableSet set];
for (int i = 0 ; i<_dataArray.count; i++) {
UILocalNotification *localNotification = [_dataArray objectAtIndex:i];
NSString * infoDict = [localNotification.userInfo objectForKey:@"kRemindMeNotificationDataKey"];
if (![names containsObject:infoDict]) {
[uniqueArray addObject:localNotification];
[names addObject:infoDict];
}
}
_dataArray = uniqueArray;
}
หากต้องการลบการแจ้งเตือนแม้ว่าจะเป็นครั้งเดียวเท่านั้นหรือซ้ำ:
- (void) removereminder:(UILocalNotification*)notification
{
_dataArray = [[NSMutableArray alloc]initWithArray:[[UIApplication sharedApplication]scheduledLocalNotifications]];
NSString * idToDelete = [notification.userInfo objectForKey:@"kRemindMeNotificationDataKey"];
for (int i = 0 ; i<_dataArray.count; i++)
{
UILocalNotification *currentLocalNotification = [_dataArray objectAtIndex:i];
NSString * notificationId = [currentLocalNotification.userInfo objectForKey:@"kRemindMeNotificationDataKey"];
if ([notificationId isEqualToString:idToDelete])
[[UIApplication sharedApplication]cancelLocalNotification:currentLocalNotification];
}
_dataArray = [[NSMutableArray alloc]initWithArray:[[UIApplication sharedApplication]scheduledLocalNotifications]];
[self filterNotficationsArray:_dataArray];
[_remindersTV reloadData];
}