How to set image in circle in swift

How can i make i circle picture with swift ?

My ViewController :

import UIKit
import Foundation

class FriendsViewController : UIViewController{
    
    @IBOutlet weak var profilPicture: UIImageView!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        profilPicture = UIImageView(frame: CGRectMake(0, 0, 100, 100))
    }
}

My profilPicture = UIImageView(frame: CGRectMake(0, 0, 100, 100)) do nothing ..

Exemple: http://www.appcoda.com/ios-programming-circular-image-calayer/

import UIKit

class ViewController: UIViewController {
  @IBOutlet weak var image: UIImageView!

  override func viewDidLoad() {
    super.viewDidLoad()
    
    image.layer.borderWidth = 1
    image.layer.masksToBounds = false
    image.layer.borderColor = UIColor.black.cgColor
    image.layer.cornerRadius = image.frame.height/2
    image.clipsToBounds = true
}

If you want it on an extension

import UIKit

extension UIImageView {
    
    func makeRounded() {
        
        self.layer.borderWidth = 1
        self.layer.masksToBounds = false
        self.layer.borderColor = UIColor.black.cgColor
        self.layer.cornerRadius = self.frame.height / 2
        self.clipsToBounds = true
    }
}

That is all you need....

You can simple create extension:

import UIKit

extension UIImageView {

   func setRounded() {
      let radius = CGRectGetWidth(self.frame) / 2
      self.layer.cornerRadius = radius
      self.layer.masksToBounds = true
   }
}

and use it as below:

imageView.setRounded()

Based in the answer of @DanielQ

Swift 4 and Swift 3

import UIKit

extension UIImageView {
    
    func setRounded() {
        self.layer.cornerRadius = (self.frame.width / 2) //instead of let radius = CGRectGetWidth(self.frame) / 2
        self.layer.masksToBounds = true
    }
}

You can use it in any ViewController with:

imageView.setRounded()

If you mean you want to make a UIImageView circular in Swift you can just use this code:

imageView.layer.cornerRadius = imageView.frame.height / 2
imageView.clipsToBounds = true

Don't know if this helps anyone but I was struggling with this problem for awhile, none of the answers online helped me. For me the problem was I had different heights and widths set on the image in storyboard. I tried every solution on stack and it turns out it was something as simple as that. Once I set them both to 200 my circle profile image was perfect. This was code then in my VC.

profileImage2.layer.cornerRadius = profileImage2.frame.size.width/2
    profileImage2.clipsToBounds = true

For Swift 4:

import UIKit

extension UIImageView {

func makeRounded() {
    let radius = self.frame.width/2.0
    self.layer.cornerRadius = radius
    self.layer.masksToBounds = true
   }
}

This way is the least expensive way and always keeps your image view rounded:

class RoundedImageView: UIImageView {
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        
        clipsToBounds = true
    }
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        
        clipsToBounds = true
    }
    
    override func layoutSubviews() {
        super.layoutSubviews()
        
        assert(bounds.height == bounds.width, "The aspect ratio isn't 1/1. You can never round this image view!")
        
        layer.cornerRadius = bounds.height / 2
    }
}

The other answers are telling you to make views rounded based on frame calculations set in a UIViewControllers viewDidLoad() method. This isn't correct, since it isn't sure what the final frame will be.

All the answers above couldn't solve the problem in my case. My ImageView was placed in a customized UITableViewCell. Therefore I had also call the layoutIfNeeded() method from here. Example:

 class NameTableViewCell:UITableViewCell,UITextFieldDelegate { ...
   
 override func awakeFromNib() {
   
    self.layoutIfNeeded()
    profileImageView.layoutIfNeeded()
    
    profileImageView.isUserInteractionEnabled = true
    let square = profileImageView.frame.size.width < profileImageView.frame.height ? CGSize(width: profileImageView.frame.size.width, height: profileImageView.frame.size.width) : CGSize(width: profileImageView.frame.size.height, height:  profileImageView.frame.size.height)
    profileImageView.addGestureRecognizer(tapGesture)
    profileImageView.layer.cornerRadius = square.width/2
    profileImageView.clipsToBounds = true;
}

struct CircleImage: View {
    var image: Image

    var body: some View {
        image
           .clipShape(Circle())
    }
}

This is correct for SwiftUI

First you need to set equal width and height for getting Circular ImageView.Below I set width and height as 100,100.If you want to set equal width and height according to your required size,set here.

 var imageCircle = UIImageView(frame: CGRectMake(0, 0, 100, 100))

Then you need to set height/2 for corner radius

 imageCircle.layer.cornerRadius = imageCircle.frame.size.height/2
 imageCircle.layer.borderWidth = 1
 imageCircle.layer.borderColor = UIColor.blueColor().CGColor
 imageCircle.clipsToBounds = true
 self.view.addSubview(imageCircle)

For Swift3/Swift4 Developers:

let radius = yourImageView.frame.width / 2
yourImageView.layer.cornerRadius = radius
yourImageView.layer.masksToBounds = true

For Rounded Image, Only following code would be enough in Extension:

self.layoutIfNeeded() // in case of autolayout(mentioned by Tom Spee in the comment).

And also make sure the property of UIImageView contentMode should be set correctly to get the result. In my case it is:

imageView.contentMode = .scaleAspectFit


extension UIImageView {
    func setRounded() {
            self.layoutIfNeeded()
            self.layer.cornerRadius = self.frame.height / 2
            self.clipsToBounds = true
    }
}

// code to make the image round


import UIKit

extension UIImageView {
public func maskCircle(anyImage: UIImage) {
    
    
    self.contentMode = UIViewContentMode.ScaleAspectFill
    self.layer.cornerRadius = self.frame.height / 2
    self.layer.masksToBounds = false
    self.clipsToBounds = true
    
    
    
    
    // make square(* must to make circle),
    // resize(reduce the kilobyte) and
    // fix rotation.
    //        self.image = prepareImage(anyImage)
}
}

// to call the function from the view controller

self.imgCircleSmallImage.maskCircle(imgCircleSmallImage.image!)

imageView.layer.cornerRadius = imageView.frame.height/2
imageView.clipToBounds = true

If your image is rounded, it would have a height and width of the exact same size (i.e 120). You simply take half of that number and use that in your code (image.layer.cornerRadius = 60).