In general, one simple form is:
dispatch_async( dispatch_get_main_queue(), ^{
// do UI updates on the main thread.
});
This can also be done with NSOperationQueue:
[[NSOperationQueue mainQueue] addOperationWithBlock:^{
// do UI updates on main thread.
}];
Sandor Szatmari
> On Sep 21, 2016, at 11:40, Dave <d...@looktowindward.com> wrote:
>
> Hi All,
>
> How can I update my UI from a background thread?
>
> I have a method that does a LOT of intense processing, it calls a delegate
> method in my Window Controller which appends it to a Logging Scroll View,
> however nothing shows up in the Scroll View although it NSLog’s the string ok.
>
> Firstly is it ok to do this? When I tried it I got a CALayer error reported
> in the NSLog output.
>
> All the Best
> Dave
>
>
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