Basic IBAction code to toggle fades in and out with animation for controls in UIView

Toggle Fades in a UIView Object

- (IBAction)showToolbarButtonPressed:(id)sender {
    // Set up conditional to setup toggle feature.
    // This conditional checks if the toolbar is invisible, and if it is, it animates the opacity to 100%, otherwise, it assumes the toolbar is visible, and animates the opacity to 0%. Code can check any other conditionals, ie. self.toolbar.isHidden == YES, etc.
    if (self.toolbar.alpha == 0.0f) {
        
        // Disable button
        [self.showToolbarButton setEnabled:NO];
        
        // Fade toolbar in w/ Animation
        [UIView animateWithDuration:2.0f
                              delay:0.5f
                            options:UIViewAnimationOptionCurveEaseInOut
                         animations:^{
                             [self.toolbar setAlpha:1.0f];
                         }
                         completion:^(BOOL finished){
                             // On completion, reenable button
                             [self.showToolbarButton setEnabled:YES];
                         }];
    }
    else {
        // Disable button
        [self.showToolbarButton setEnabled:NO];
               // Fade toolbar out w/ Animation
        [UIView animateWithDuration:2.0f
                              delay:0.5f
                            options:UIViewAnimationOptionCurveEaseInOut
                         animations:^{
                             [self.toolbar setAlpha:0.0f];
                         }
                         completion:^(BOOL finished){
                             // On completion, reenable button
                             [self.showToolbarButton setEnabled:YES];
                         }];
    }
}