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how to programmatically set constraint swift

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Alexis Comesana answered on March 4, 2020 Popularity 3/10 Helpfulness 2/10

answer how to programmatically set constraint swift

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how to programmatically set constraint swift

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view.translatesAutoresizingMaskIntoConstraints = false
view.topAnchor.constraint(equalTo: view.superview!.topAnchor).isActive = true
view.bottomAnchor.constraint(equalTo: view.superview!.bottomAnchor).isActive = true
view.leadingAnchor.constraint(equalTo: view.superview!.leadingAnchor, constant: 10).isActive = true
view.trailingAnchor.constraint(equalTo: view.superview!.trailingAnchor, constant: 10).isActive = true

Popularity 3/10 Helpfulness 2/10 Language swift

Source: stackoverflow.com

Tags: programmatically set swift

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Contributed on Feb 25 2023

Alexis Comesana

0 Answers Avg Quality 2/10

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swift constraints programmatically

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fileprivate func setupName() { 

    lblName.text = "Hello world"

    // Step 1
    lblName.translatesAutoresizingMaskIntoConstraints = false

    //Step 2
    self.view.addSubview(lblName)

    //Step 3
    NSLayoutConstraint.activate([
        lblName.centerXAnchor.constraint(equalTo: self.view.centerXAnchor),
        lblName.centerYAnchor.constraint(equalTo: self.view.centerYAnchor)
    ])
}

Popularity 8/10 Helpfulness 4/10 Language typescript

Source: stackoverflow.com

Tags: constraints cons

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Contributed on Jun 04 2021

Happy Hyena

0 Answers Avg Quality 2/10

swift edit constraint programmatically

Comment

yourHeightConstraintOutlet.constant = someValue
yourView.layoutIfNeeded()

Popularity 9/10 Helpfulness 4/10 Language swift

Source: Grepper

Tags: edit programmatically progra

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Contributed on Mar 04 2020

Mobile Star

0 Answers Avg Quality 2/10

swift constraints programmatically

Comment

import UIKit

class ViewController: UIViewController {

override func viewDidLoad() {
super.viewDidLoad()

let myImageView:UIImageView = UIImageView()
myImageView.backgroundColor = UIColor.red
myImageView.image = UIImage(named:"sample_dog")!
myImageView.translatesAutoresizingMaskIntoConstraints = false
myImageView.layer.borderColor = UIColor.red.cgColor
myImageView.layer.borderWidth = 10
self.view.addSubview(myImageView)
        
view.removeConstraints(view.constraints)


view.addConstraint(NSLayoutConstraint(
item: myImageView,
attribute: .top,
relatedBy: .equal,
toItem: view,
attribute: .top,
multiplier: 1,
constant:100)
    
)

view.addConstraint(NSLayoutConstraint(
item: myImageView,
attribute: .centerX,
relatedBy: .equal,
toItem: view,
attribute: .centerX,
multiplier: 1,
constant:0)
)
    
view.addConstraint(NSLayoutConstraint(
item: myImageView,
attribute: .height,
relatedBy: .equal,
toItem: view,
attribute: .width,
multiplier: 0.5,
constant:40))
    
view.addConstraint(NSLayoutConstraint(
item: myImageView,
attribute: .width,
relatedBy: .equal,
toItem: view,
attribute: .width,
multiplier: 0.5,
constant:40))
    
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
}
}

Popularity 8/10 Helpfulness 2/10 Language typescript

Source: stackoverflow.com

Tags: constraints prog

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Contributed on Jun 04 2021

Happy Hyena

0 Answers Avg Quality 2/10

swift constraints programmatically

Comment

 /*
// regular use
1.leftAnchor
2.rightAnchor
3.topAnchor
// intermediate use
4.widthAnchor
5.heightAnchor
6.bottomAnchor
7.centerXAnchor
8.centerYAnchor
// rare use
9.leadingAnchor
10.trailingAnchor
etc. (note: very project to project)
*/

Popularity 7/10 Helpfulness 1/10 Language typescript

Source: stackoverflow.com

Tags: constraints programmatically pro

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Contributed on Jun 04 2021

Happy Hyena

0 Answers Avg Quality 2/10

how to programmatically set constraint swift

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how to programmatically set constraint swift

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