Answer by Milan Nosáľ for How do I animate constraint changes?
Swift 4 solutionUIView.animateThree simple steps:Change the constraints, e.g.:heightAnchor.constant = 50Tell the containing view that its layout is dirty and that the autolayout should recalculate the...
View ArticleAnswer by Edoardo Vicoli for How do I animate constraint changes?
Working and just tested solution for Swift 3 with Xcode 8.3.3:self.view.layoutIfNeeded()self.calendarViewHeight.constant = 56.0UIView.animate(withDuration: 0.5, delay: 0.0, options:...
View ArticleAnswer by C0mrade for How do I animate constraint changes?
Working Solution 100% Swift 5.3i have read all the answers and want to share the code and hierarchy of lines which i have used in all my applications to animate them correctly, Some solutions here are...
View ArticleAnswer by Nazariy Vlizlo for How do I animate constraint changes?
Swift solution:yourConstraint.constant = 50UIView.animate(withDuration: 1.0, animations: { yourView.layoutIfNeeded})
View ArticleAnswer by ivanferdelja for How do I animate constraint changes?
In the context of constraint animation, I would like to mention a specific situation where I animated a constraint immediately within a keyboard_opened notification. Constraint defined a top space from...
View ArticleAnswer by Tommie C. for How do I animate constraint changes?
Storyboard, Code, Tips and a few GotchasThe other answers are just fine but this one highlights a few fairly important gotchas of animating constraints using a recent example. I went through a lot of...
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Answer by Steven Hepting for How do I animate constraint changes?
Generally, you just need to update constraints and call layoutIfNeeded inside the animation block. This can be either changing the .constant property of an NSLayoutConstraint, adding remove constraints...
View ArticleAnswer by Gabriel.Massana for How do I animate constraint changes?
I was trying to animate Constraints and was not really easy to found a good explanation.What other answers are saying is totally true: you need to call [self.view layoutIfNeeded]; inside...
View ArticleAnswer by Cameron Lowell Palmer for How do I animate constraint changes?
I appreciate the answer provided, but I think it would be nice to take it a bit further.The basic block animation from the documentation[containerView layoutIfNeeded]; // Ensures that all pending...
View ArticleAnswer by John Erck for How do I animate constraint changes?
// Step 1, update your constraintself.myOutletToConstraint.constant = 50; // New height (for example)// Step 2, trigger animation[UIView animateWithDuration:2.0 animations:^{ // Step 3, call...
View ArticleAnswer by D.D. for How do I animate constraint changes?
There is an article talk about this:http://weblog.invasivecode.com/post/42362079291/auto-layout-and-core-animation-auto-layout-wasIn which, he coded like this:- (void)handleTapFrom:(UIGestureRecognizer...
View ArticleAnswer by g3rv4 for How do I animate constraint changes?
Two important notes:You need to call layoutIfNeeded within the animation block. Apple actually recommends you call it once before the animation block to ensure that all pending layout operations have...
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How do I animate constraint changes?
I'm updating an old app with an AdBannerView and when there is no ad, it slides off screen. When there is an ad it slides on the screen. Basic stuff.Old style, I set the frame in an animation block.New...
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