Question

I create UIView for Section and once for Row. Then i create method:

-(void)startBlinking {
   [UIView setAnimationsEnabled:YES];
   [UIView animateWithDuration:5 delay:0.0 options:UIViewAnimationOptionAllowUserInteraction|UIViewAnimationOptionCurveEaseInOut animations:^
   {
        [self setBackgroundColor:[UIColor yellowColor]];
    } completion:^(BOOL finished)
    {
        [UIView animateWithDuration:5 delay:0.0 options:UIViewAnimationOptionAllowUserInteraction|UIViewAnimationOptionCurveEaseInOut animations:^
       {
           [self setBackgroundColor:[UIColor whiteColor]];
       } completion: NULL];
   }];
}

But if i call this method i not view any animations. background color change very fast without animation… :(( WTF??

i need create blink background color effect for sections and rows if catch events.

Answer 1

backgroundColor transitions are not animatable. I would suggest you add a subview to your cell with an subview.alpha = 0.0f and then in the animation block you can transition the alpha to 1.0. This will get you the desired effect.