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Re: How to update UI from a background thread
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Re: How to update UI from a background thread


  • Subject: Re: How to update UI from a background thread
  • From: David Hoerl <email@hidden>
  • Date: Wed, 21 Sep 2016 11:01:28 -0700

> 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.

---

There are two components to your "updating the UI". One is creating a tree of views and subviews, the second actually showing them in the UI.

What's p-reviously worked for me is doing the creation in a background thread, and when all is done adding these views as subviews of a visible view. Not that I've ever seen this as a sanctioned technique by Apple, its just worked for me in shipping apps.

David
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