gistfile1.m

+ (void)pulseView:(UIView *)view completion:(void (^)(void))block {

  // No need for fancy keyframe animation, we can fake this good enough...
	[UIView animateWithDuration:0.05 delay:0 options:UIViewAnimationCurveEaseInOut animations:^(void) {
		view.layer.transform = CATransform3DMakeAffineTransform(CGAffineTransformMakeScale(0.7, 0.7));
	} completion:^(BOOL finished) {
		[UIView animateWithDuration:0.12 delay:0 options:UIViewAnimationCurveEaseInOut animations:^(void) {
			view.layer.transform = CATransform3DMakeAffineTransform(CGAffineTransformMakeScale(1.1, 1.1));
		} completion:^(BOOL finished) {
			[UIView animateWithDuration:0.1 delay:0 options:UIViewAnimationCurveEaseInOut animations:^(void) {
				view.layer.transform = CATransform3DMakeAffineTransform(CGAffineTransformMakeScale(0.9, 0.9));
			} completion:^(BOOL finished) {
				[UIView animateWithDuration:0.09 delay:0 options:UIViewAnimationCurveEaseInOut animations:^(void) {
					view.layer.transform = CATransform3DMakeAffineTransform(CGAffineTransformMakeScale(1.05, 1.05));
				} completion:^(BOOL finished) {
					[UIView animateWithDuration:0.08 delay:0 options:UIViewAnimationCurveEaseInOut animations:^(void) {
						view.layer.transform = CATransform3DMakeAffineTransform(CGAffineTransformMakeScale(0.95, 0.95));
					} completion:^(BOOL finished) {
						[UIView animateWithDuration:0.05 delay:0 options:UIViewAnimationCurveEaseInOut animations:^(void) {
							view.layer.transform = CATransform3DMakeAffineTransform(CGAffineTransformMakeScale(1.0, 1.0));
						} completion:^(BOOL finished) {
							if (block != NULL) {
								block();
							}
						}];
					}];
				}];
			}];
		}];
	}];
}