For Loop from Core Data - core-data

Question

I have a question, I have 2 arrays (date and descriere), one is keeping a date which I select from a datePicker the other one is an array with strings, Both arrays are fetched from CoreData.
-(void)generateLocalNotification {
CoreDataStack *coreDataStack = [CoreDataStack defaultStack];
NSFetchRequest *fetchRequest = [NSFetchRequest fetchRequestWithEntityName:#"AddEntrySettings"];
fetchRequest.resultType = NSDictionaryResultType;
NSArray *result = [coreDataStack.managedObjectContext executeFetchRequest:fetchRequest error:nil];
NSMutableArray *date = [result valueForKey:#"date"];
NSMutableArray *descriere = [result valueForKey:#"descriere"];`
if (date != nil) {
for (NSString *stringDate in date) {
NSDateFormatter *format = [[NSDateFormatter alloc]init];
[format setDateFormat:#"MM/dd/yyyy h:mm a"];
[format setTimeZone:[NSTimeZone timeZoneWithName:#"GMT"]];
self.date = [format dateFromString:stringDate];
NSLog(#"LOG:%#",date);
localNotification.fireDate = [self.date dateByAddingTimeInterval:0];
localNotification.timeZone = [NSTimeZone timeZoneWithName:#"GMT"];
for (int i = 0; i < descriere.count; i++) {
localNotification.alertBody = descriere[i];
}
localNotification.applicationIconBadgeNumber = 1;
localNotification.soundName = UILocalNotificationDefaultSoundName;
localNotification.userInfo = #{#"id" : #42};
UIApplication *app = [UIApplication sharedApplication];
[app scheduleLocalNotification:localNotification];
}
}
}
When I try to fireDate everything is working fine, every time when a date from array is matching with local time I receive a notification till I try to add alertBody, when I make a for loop for alertBody every time is showing just last entry from my NSArray. In CoreData the both entries I adding in the same time. Where is my mistake? How can I make every time to receive a notification with alertBody that matching with date that I insert in CoreData?

Answer 1

The problem is that this for loop:
for (int i = 0; i < descriere.count; i++) {
localNotification.alertBody = descriere[i];
}
will, for every stringDate, iterate to the last item in your descriere array. What you want is to find the index of stringDate in date, and then find the string at the same index in descriere.
But there is an easier way. Don't unpack result into two separate arrays, just access the different values from within the for loop:
if (result != nil) {
for (NSDictionary *dict in result) {
NSString *stringDate = [dict objectForKey:#"date"];
// if necessary, test whether stringDate is nil here
NSDateFormatter *format = [[NSDateFormatter alloc]init];
[format setDateFormat:#"MM/dd/yyyy h:mm a"];
[format setTimeZone:[NSTimeZone timeZoneWithName:#"GMT"]];
self.date = [format dateFromString:stringDate];
NSLog(#"LOG:%#",date);
localNotification.fireDate = [self.date dateByAddingTimeInterval:0];
localNotification.timeZone = [NSTimeZone timeZoneWithName:#"GMT"];
localNotification.alertBody = [dict objectForKey:#"descriere"];
localNotification.applicationIconBadgeNumber = 1;
localNotification.soundName = UILocalNotificationDefaultSoundName;
localNotification.userInfo = #{#"id" : #42};
UIApplication *app = [UIApplication sharedApplication];
[app scheduleLocalNotification:localNotification];
}
}