Prevent delegate method from being called too often
- by Lord Zsolt
How would you add a delay between certain method being called?
This is my code that I want to only trigger 30 times per second:
- (void) scrollViewDidScroll: (UIScrollView*)scrollView {
[self performSelector:@selector(needsDisplay) withObject:nil afterDelay:0.033];
}
- (void) needsDisplay {
[captureView setNeedsDisplay];
}
If I leave it like this, it only gets called after the user stopped scrolling.
What I want to do is call the method when the user is scrolling, but with a delay of 33 milliseconds between each call.
