Question

My application was working with no problem in iphone simulator, but when I run it on iphone 4 (ios 5.1) some views’ animations are not fluent and they sometimes falter. I use the code below, what might the problem be here?

- (void)moveAnimatedToPoint:(CGPoint)point after:(float)delay during:(CGFloat)duration willRemove:(BOOL)remove
{
    [UIView animateWithDuration:duration
                          delay:delay
                        options:UIViewAnimationCurveEaseOut
                     animations:^{
                         self.frame = CGRectMake(point.x, point.y,
                                                 CGRectGetWidth(self.frame), CGRectGetHeight(self.frame));
                     } completion:^(BOOL finished) {
                         if (finished) {
                             if (remove)
                                 [self removeFromSuperview];
                             else {
                                 isHided = CGRectContainsRect(self.superview.frame, self.frame) ? NO : YES;
                             }
                         }
                     }];
}

Answer 1

Solution is explained at below link very well. My views have shadow layers and they slow the transition animations.

http://mobileoverlord.com/instruments-optimizing-core-animation/