How to update a UI label from a non UI thread in iOS

Question

I am new to iOS development, I have plain objective -c class \"MoneyTimer.m\" for running timer, from there i want to update the an UI label with the changing value of timer.

Answer 1

This is the quickest and simplest way to do it is:

- (void) countUpH{

   sumUp = sumUp + rateInSecH;
   //Accessing UI Thread
   [[NSOperationQueue mainQueue] addOperationWithBlock:^{

      //Do any updates to your label here
      yourLabel.text = newText;

   }];
}

If you do it this way you don't have to switch to a different method.

Hope this helps.

Sam