multithreading - Background (Asynchronous) programming in Cocoa/Objective-C -

multithreading - Background (Asynchronous) programming in Cocoa/Objective-C -

i want similar c#'s backgroundworker.

i want execute block code of code (irrespective of kind of code is. networking, i/o, complex math operations, whatever) in background while animate nsprogressindicator. 1 time operation complete, not want hide progress indicator want receive result object(s) background code main code.

what best way this?

thanks help!

you may want reading nsoperation, nsoperationqueue, , blocks.

using these can execute "block" of code asynchronously , have "schedule" update of progress indicator on main thread every often. can set completion block (callback) execute when operation finish , can phone call function executed on main thread.

this article provides nice overview of options little examples.

this answer provides illustration defining , using completion block.

objective-c multithreading cocoa asynchronous background-process