How to create Auto layout equal width constraint programmatically in ios swift?

Question

How to give programmatically constraints equal width and equal height with multiple views.I check google but not perfect answer for programmatically equal width and height const

Answer 1

You have three possible ways to do that:

1) By using anchors:

view.widthAnchor.constraint(equalTo: otherView.widthAnchor, multiplier: 1.0).isActive = true

2) Visual format:

simple example - "H:|[otherView]-[view(==otherView)]|"

3) "Old school" constraints:

NSLayoutConstraint(item: #view, attribute: .width, relatedBy: .equal, toItem: #otherView, attribute: .width, multiplier: 1.0, constant: 0.0).isActive = true

hope it will help somebody.