Show And Hide the UIView With Same Animation In Objective-C?

Question

I have a UITextField searchbox, at first it's hidden, i want to show it with animation and it works. But when i hide it again, the animation happens suddenly, not with defined time in animation.

Here is my code :

    [UIView transitionWithView:searchbox duration:0.3 
    options:UIViewAnimationOptionTransitionCrossDissolve 
    animations:^{searchbox.hidden = NO;}completion:NULL];

    [UIView transitionWithView:searchbox duration:0.3 
    options:UIViewAnimationOptionTransitionCrossDissolve 
    animations:^{searchbox.hidden = YES;}completion:NULL];

Answer 1

Must use .alpha to hide or show UIView.

Correct code is :

[UIView transitionWithView:searchbox duration:0.3 
options:UIViewAnimationOptionTransitionCrossDissolve 
animations:^{searchbox.alpha=1;}completion:NULL];

[UIView transitionWithView:searchbox duration:0.3 
options:UIViewAnimationOptionTransitionCrossDissolve 
animations:^{searchbox.alpha=0;}completion:NULL];