Long press gesture recognizer was added multiple times.

[CocoaBob]

If longPress gesture recognizer has already been added, we shouldn't add it again. Otherwise, the boolean canReorder won't work well if it's initialized multiple times.

[bvogelzang]

The initialize method shouldn't be called more than once. Keep in mind here the method signature is - (void)initialize and not + (void)initialize (which has been known to get called more than once). Do you have an example where this method would get called more than once?

[CocoaBob]

I use it in the -init method of a UITableViewController's subclass like this:

self.tableView = [BVReorderTableView new];

The call stack is always like this:

0 - [BVReorderTableView initialize];
1 - [BVReorderTableView initWithFrame:style:] <-
2 - [UITableView initWithFrame:]
3 - [BVReorderTableView initWithFrame] <-
4 - [UIView init]
5 - [BVReorderTableView init] <-
6 + [NSObject new]

And all the marked init methods will call [self initialize] once, so here we have 3 times...

I tried [[BVReorderTableView alloc] init];, it's the same.

Did I miss something?

[bvogelzang]

You were correct. I've fixed the issue at a more critical step in the code so that the initialize method won't be called more than once. Thanks for your help!