NSFileManager removeItemAtPath locks main thread

Question

I'm working on an app that can remove large amounts of files. When I invoke the NSFileManager's removeItemAtPath method, the app's UI locks until the operation finishes (this can take a while).

I tried fixing this by invoking the method using performSelectorInBackground but it didn't work.

Any ideas?

Thanks in advance.

Answer 1

You could try using GCD to do it in a background thread.

dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^(void) {
  [[NSFileManager defaultManager] removeItemAtPath:path];
});