Programmatically change the height and width of a UIImageView Xcode Swift

Question

Hey for some reason I am struggling with trying to set the height and width of one of my image views. I want to set it so the height only goes for 20% of my screen. I know to re

Answer 1

imageView is a subview of the main view. It works this way

image.frame = CGRectMake(0 , 0, super.view.frame.width, super.view.frame.height * 0.2)

Answer 2

let screenSize: CGRect = UIScreen.mainScreen().bounds
image.frame = CGRectMake(0,0, screenSize.height * 0.2, 50)

Answer 3

A faster / alternative way to change the height and/or width of a UIView is by setting its width/height through frame.size:

let neededHeight = UIScreen.main.bounds.height * 0.2
yourView.frame.size.height = neededHeight

Answer 4

u can use this code

var imageView = UIImageView(image: UIImage(name:"imageName"));
imageView.frame = CGrectMake(x,y imageView.frame.width*0.2,50);

or

var imageView = UIImageView(frame:CGrectMake(x,y, self.view.frame.size.width *0.2, 50)

Answer 5

The accepted answer in Swift 3:

let screenSize: CGRect = UIScreen.main.bounds
image.frame = CGRect(x: 0, y: 0, width: 50, height: screenSize.height * 0.2)

Answer 6

Using autoview

image.heightAnchor.constraint(equalToConstant: CGFloat(8)).isActive = true