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Editorial Team
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Asked: 2026-05-15T00:30:54+00:00

I have a problem regarding UIActivityIndicator. I applied [spinner startAnimating] at the IBAction on

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I have a problem regarding UIActivityIndicator. I applied [spinner startAnimating] at the IBAction on a button and then doing some process. After the process activityindicator should be stopped and then navigate to another view. But the activity indicator does not appear. When I remove the line “[spinner stopAnimating]” then the indicator appears but not at the instant button is pressed. It appears just before the other view loads, and apparently does not appear, I mean it does not appear but if we see very carefully then only it appears for an instant.

Thanx in advance for any answer.

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1 Answer

  1. Editorial Team

    Ole is pretty much correct, but there is a trick of you don’t mind synchronous processing (often that it why you want to display the activity indicator in the first place).

    First move your code that you want to process while the spinner is up to its own method. Then do 

    [spinner startAnimating];
[self performSelector:@selector(methodname) withObject:nil afterDelay:0];

    The afterDelay:0 means on the next time through the run loop. That way the spinner gets started.

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