iOS equivalent for Android View.GONE visibility mode

Solution 1:

Adding a constraint(NSLayoutAttributeHeight) that sets height of the view to 0 worked for me:

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

Solution 2:

All of answers on this questions are inefficient. Best way to equvailent of Android setVisibility:Gone method on iOS is that StackView first select components then in editor, embed in, Stack View,

connect new stack view with IBOutlet, then:

hidden:

UIView * firstView = self.svViewFontConfigure.arrangedSubviews[0];
        firstView.hidden = YES;

visibility:

UIView * firstView = self.svViewFontConfigure.arrangedSubviews[0];
        firstView.hidden = NO;

as using stack view, all constraints will be keeped!

Document

Solution 3:

add a height constraint to your view as follows:

then make an outlet for the height constraint in your viewController file as follows:

& then in your viewDidLoad method change constraint height to 0 as follows:

override func viewDidLoad() {
    super.viewDidLoad()
nsLcButtonHeight.constant = 0
}

Solution 4:

To achieve Androids.GONE functionality on iOS is to use a UIStackView. After that hide the child by position. (Apples documentation)

SWIFT 4:

let firstView = cell.rootStackView.arrangedSubviews[0]
    firstView.isHidden = true // first view gone

It's a table cell example, just put both insides Stack view and get item for GONE the child.

Solution 5:

What you can do is to group your views under a stack view. Then when you hide a particular view, the remaining views will be shifted automatically to fill the space.

You may want to check out the Apple Documentation on Stack Views: https://developer.apple.com/reference/uikit/uistackview

or online tutorials such as: https://www.appcoda.com/stack-views-intro/