Search code examples
iosimageviewscale

Scale an Image in ImageView (Scale x,y) - IOS

I usually scale the image of an imageView in Android with the scaleX and scaleY properties.

How can I do the same in IOS? I'm really new with IOS,I'm using swift 3 and I didn't find any analog thing like that.

Solution

  • If you need to scale the image proportionally, the following code might work for you: 

    if let cgImage = imageView.image?.cgImage, let orientation = imageView.image?.imageOrientation {
    imageView.image = UIImage(cgImage: cgImage, scale: newScale, orientation: orientation)
}

    However, if you only want to display it with a size different than that of the original image, you should control the size of the image using the size of the UIImageView that presents it. To make sure the image scales correctly with the size of the view, take a look at the UIImageView.contentMode property: https://developer.apple.com/reference/uikit/uiview/1622619-contentmode