Exception because of UIRefreshControl

Question

I'm using the UIRefreshControl for the first time and I get an exception during the loading of my refresh control.

Here is my declaration :

self.refreshControl = [[UIRefreshControl alloc] init];
self.refreshControl.tintColor = [UIColor grayColor];
[self.refreshControl addTarget:self action:@selector(refreshView:) forControlEvents:UIControlEventValueChanged];
[self.actualitesTableView addSubview:self.refreshControl];

Here are my functions :

- (void)refreshView:(UIRefreshControl *)sender {
    [self performSelectorInBackground:@selector(threadAction) withObject:nil];
}

- (void)threadAction {
    [self choixMAJ];
    NSLog(@"OK1");
    [self.refreshControl endRefreshing];
    NSLog(@"OK2");
}

When I use the choixMAJ() method, it works perfectly.

Everything's going right and the OK2 is logged but after that, when the refresh control disapeared, the app crashed with this error :

*** -[__NSArrayM removeObject:]: message sent to deallocated instance 0x655a1a0

I don't understand why.. Any ideas ?

Answer 1

Well, you shouldn't call -endRefreshing on a background thread, for starters. UIKit methods (including that one) should be performed on the main thread. I'm not sure that's actually causing your problem, though.

Thanks shusta, it helps me a lot !