AutoLayout with hidden UIViews?

by

My personal preference for showing/hiding views is to create an IBOutlet with the appropriate width or height constraint.

I then update the constant value to 0 to hide, or whatever the value should be to show.

The big advantage of this technique is that relative constraints will be maintained. For example let’s say you have view A and view B with a horizontal gap of x. When view A width constant is set to 0.f then view B will move left to fill that space.

There’s no need to add or remove constraints, which is a heavyweight operation. Simply updating the constraint’s constant will do the trick.

More Related Contents:

  1. How do I animate constraint changes?
  2. Emulating aspect-fit behaviour using AutoLayout constraints in Xcode 6
  3. With Auto Layout, how do I make a UIImageView’s size dynamic depending on the image?
  4. setNeedsLayout vs. setNeedsUpdateConstraints and layoutIfNeeded vs updateConstraintsIfNeeded
  5. Auto layout UIScrollView with subviews with dynamic heights
  6. Centering subview’s X in autolayout throws “not prepared for the constraint”
  7. Moving views with constraints
  8. Need assistance setting two buttons of equal width, side by side Autolayout
  9. Specifying one Dimension of Cells in UICollectionView using Auto Layout
  10. iOS ScrollView needs constraint for y position or height
  11. table header view height is wrong when using auto layout, IB, and font sizes
  12. Trouble with AutoLayout on UITableViewCell
  13. AutoLayout, Unable to simultaneously satisfy constraints
  14. AutoLayout views make app crash on popViewController
  15. How to force NSLocalizedString to use a specific language
  16. How to force view controller orientation in iOS 8?
  17. How to add a touch event to a UIView?
  18. Cut transparent hole in UIView
  19. How to calculate UILabel width based on text length?
  20. afnetworking 3.0 Migration: how to POST with headers and HTTP Body
  21. iOS 7 – Difference between viewDidLoad and viewDidAppear
  22. “From View Controller” disappears using UIViewControllerContextTransitioning
  23. how to remove HTML Tags from NSString in iphone?
  24. Handling Push Notifications when App is Terminated
  25. Swift doesn’t convert Objective-C NSError** to throws
  26. Class is implemented in both. One of the two will be used
  27. Present UIAlertController from AppDelegate [duplicate]
  28. AVSpeechSynthesizer in background mode
  29. Decrease the width of the last line in multiline UILabel
  30. UICollectionView current visible cell index

Leave a Comment