Top "Nslayoutconstraint" questions

NSLayoutConstraint is a constraint defines a relationship between two of user interface objects that must be satisfied by the constraint-based layout system.

How to add constraints programmatically using Swift

I'm trying to figure this out since last week without going any step further. Ok, so I need to apply …

ios swift uiview autolayout nslayoutconstraint
How to update the constant height constraint of a UIView programmatically?

I have a UIView and I set the constraints using Xcode Interface Builder. Now I need to update that UIView …

swift xcode autolayout nslayoutconstraint
Unable to simultaneously satisfy constraints, will attempt to recover by breaking constraint

Below is the error message I receive in the debug area. It runs fine and nothing is wrong except that …

ios objective-c debugging nslayoutconstraint
Programmatically Add CenterX/CenterY Constraints

I have a UITableViewController that doesn't display any sections if there is nothing to show. I've added a label to …

ios xcode swift autolayout nslayoutconstraint
UITextView that expands to text using auto layout

I have a view that is laid out completely using auto layout programmatically. I have a UITextView in the middle …

ios uitextview autolayout nslayoutconstraint
setNeedsLayout vs. setNeedsUpdateConstraints and layoutIfNeeded vs updateConstraintsIfNeeded

I know that the auto layout chain consists in basically 3 different process. updating constraints layout views (here is where we …

ios objective-c autolayout nslayoutconstraint
Unable to simultaneously satisfy constraints - No constraints in place

I have gone through and removed every single user constraint yet I am still getting the following error ONLY after …

ios ipad autoresizingmask nslayoutconstraint
How can I set aspect ratio constraints programmatically in iOS?

I have used auto layout for my view controllers. I have set the V and H positions in constraints, but …

ios autolayout constraints nslayoutconstraint
How to adjust height of UICollectionView to be the height of the content size of the UICollectionView?

I would like the UICollectionView (The red one) to shrink to the height of the content size in this case …

ios swift uicollectionview nslayoutconstraint ios-autolayout
Width and Height Equal to its superView using autolayout programmatically?

I've been looking for a lot of snippets in the net and I still can't find the answer to my …

ios swift dynamic autolayout nslayoutconstraint