Threading in Objective-C

Question

Are there threads in Objective C? If so, how are they declared and used?

If anybody knows about multithreading in Objective C, please share with me.

Thanks and regards.

Answer 1

An easy way to just spin off a method in a new thread is to use.

+ (void)detachNewThreadSelector:(SEL)aSelector toTarget:(id)aTarget withObject:(id)anArgument on NSThread. If you aren't running garbage collected you need to set up your own autorelease pool.

Another easy way if you just don't want to block the main thread is to use.

- (void)performSelectorInBackground:(SEL)aSelector withObject:(id)arg on NSObject

Depending on what type of concurrency you are after you should also take a look at NSOperation that can give you free locking so you can share it between several threads among other things.