Removing object from array doesnt remove anything

Question

I have:

self.path = [self pathByCopyingFile:@"Notes List.plist"];
self.data = [[NSMutableDictionary alloc] initWithContentsOfFile:self.path];
self.notes = [self.data objectForKey:@"Notes"];

Then in a button (Button method definitely gets called):

NSString *title = self.navigationItem.title;
         //Filter notes array by title
         NSPredicate *pred = [NSPredicate predicateWithFormat:@"Title =[cd] %@", title];
         NSArray * titleArray = [self.notes filteredArrayUsingPredicate:pred];

         //delete all the notes with the old title name
         [self.notes removeObject:titleArray];
         NSLog(@"%@", self.notes);

At this point, self.notes still contains the items and i dont know why they arnt being removed

Because NSArray is not mutable? stackoverflow.com/questions/7426570/remove-object-from-nsarray — Rob
– Rob, Commented Dec 12, 2013 at 18:11

rmaddy · Accepted Answer · 2013-12-12 18:14:12Z

3

You are trying to remove an array from the array. That's not what you want. I believe your goal is to remove all of the objects in the titleArray from your notes array.

And this doesn't even consider that self.notes is probably an NSArray and not an NSMutableArray.

If self.notes is mutable you can use the removeObjectsInArray:.

[self.notes removeObjectsInArray:titleArray];

answered Dec 12, 2013 at 18:14

rmaddy

320k44 gold badges548 silver badges591 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Removing object from array doesnt remove anything

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related