Alternate to sleeping NSThread for pause

Question

Right now I'm sleeping my main thread in order to have my application pause before running an action. [NSThread sleepForTimeInterval:0.75];. I know that that is less than ideal from a programming perspective, what other options do I have?

You want to block the whole app or is it to do an action after some delay? — Deepak Danduprolu, Jun 16 '11 at 22:25

score 4 · Accepted Answer · answered Jun 16 '11 at 22:33

4

You could call the selector after a delay.

[self performSelector:@selector(yourAction:) withObject:nil afterDelay:0.75];

answered Jun 16 '11 at 22:33

Paul Tiarks

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There is also NSTimer, but performSelector:withObject:afterDelay: is usually the way to go. +1 – Dancreek Jun 16 '11 at 22:58

Paul N · Answer 2 · 2011-06-17T20:00:53.173

3

For applications targeted for devices with iOS 4.0 or greater you could use Grand Central Dispatch:

  dispatch_after(dispatch_time(DISPATCH_TIME_NOW, SecondsToWait*NSEC_PER_SEC), dispatch_get_current_queue(), ^{
                // And Call Your Action Here.
            });

edited Jun 17 '11 at 20:00

answered Jun 16 '11 at 22:30

Paul N

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Alternate to sleeping NSThread for pause

2 Answers2