iOS controls hide and gone like android

Question

I have used storyboard with autolayout for my UI design. Basically in android there are three different properties will be there like Visible, Invis

Answer 1

if your view for example

@property (weak, nonatomic) IBOutlet SearchBarView *searchBar;

already has a constraint with it. Add a new IBLayout by dragging your constraint to the .h file.ex:

@property (weak, nonatomic) IBOutlet NSLayoutConstraint *constraintSearBarHeight;

and do this in where ever you like

self.constraintSearBarHeight.constant = 0;

if your view don't have a constraint yet. I found this answer helpful. Just do below

[self.view addConstraint:[NSLayoutConstraint constraintWithItem:self.searchBar attribute:NSLayoutAttributeHeight relatedBy:NSLayoutRelationEqual toItem:nil attribute:NSLayoutAttributeNotAnAttribute multiplier:1.0 constant:0]];