CODEWITHSUNDEEP
iosswiftimage
Tanner Helton
Tanner Helton

Reputation: 99

How do I center and aspect fit an image in Swift 3?

I have a project in Swift 3 that I am using a gradient on the view. I placed a image on the view, but it is under the gradient layer so I was going to draw the image programmatically instead of with the storyboard. I can't seem to figure out how to get the image to be centered and to aspect fit inside the bounds of the view.

What I have...

//Gradient Background
let gradientLayer = CAGradientLayer()
gradientLayer.frame = self.view.frame
gradientLayer.colors = [UIColor(red: 0/255, green: 147/255, blue: 255/255, alpha: 1.0).cgColor, UIColor(red: 162/255, green: 134/255, blue: 255/255, alpha: 1.0).cgColor]
gradientLayer.locations = [0.0, 1.0]
gradientLayer.startPoint = CGPoint(x: 0.0, y: 1.0)
gradientLayer.endPoint = CGPoint(x: 1.0, y: 0.0)
self.view.layer.addSublayer(gradientLayer)

//Image
let mainImage = UIImage(named:"WhiteLogoFront")
var mainImageView = UIImageView(image:mainImage)
self.view.addSubview(mainImageView)

Upvotes: 3

Views: 19785

Answers (2)

Yogesh Makwana
Yogesh Makwana

Reputation: 448

 let gradientLayer = CAGradientLayer()
    gradientLayer.frame = self.view.frame
    gradientLayer.colors = [UIColor(red: 0/255, green: 147/255, blue: 255/255, alpha: 1.0).cgColor, UIColor(red: 162/255, green: 134/255, blue: 255/255, alpha: 1.0).cgColor]
    gradientLayer.locations = [0.0, 1.0]
    gradientLayer.startPoint = CGPoint(x: 0.0, y: 1.0)
    gradientLayer.endPoint = CGPoint(x: 1.0, y: 0.0)
    self.view.layer.addSublayer(gradientLayer)

    //Image
    let mainImage = UIImage(named:"WhiteLogoFront")
    var mainImageView = UIImageView(image:mainImage)
    mainImageView.center = self.view.cente
    mainImageView.contentMode = .ScaleAspectFit
    self.view.addSubview(mainImageView)

Try this one

Upvotes: 1

Ram
Ram

Reputation: 969

You can try it

let mainImage = UIImage(named:"WhiteLogoFront")
    var mainImageView = UIImageView(image:mainImage)
    mainImageView.contentMode = .ScaleAspectFit

Upvotes: 10

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