Question

[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.30f];

[UIView setAnimationTransition:UIViewAnimationTransitionNone forView:viewSettings cache:YES];   
viewSettings.alpha = 0;
[viewSettings removeFromSuperview];
[UIView commitAnimations];

I ve written the code above that works well when I add the view via animation, but it doesn’t work when i remove the view from superview. Animation works if I remove [viewSettings removeFromSuperview] line. I don’t know where I’m doing wrong.

Answer 1

You need to remove it from the superview after the animation has completed. This is very easy to accomplish if you use the blocks based API, which Apple is encouraging you to do:

[UIView transitionWithView:viewSettings 
                  duration:0.30f 
                   options:UIViewAnimationOptionTransitionNone  
                animations:^{ 
    [viewSettings setAlpha:0];
} completion:^(BOOL finished) {
    [viewSettings removeFromSuperview];
}];

You can read about all the options in Apple’s documentation.