How to adjust an UIButton's imageSize?

Question

How can I adjust the image size of the UIButton? I am setting the image like this:

[myLikesButton setImage:[UIImage imageNamed:@\"icon-heart.png\"] forState:UICo         


        

Answer 1

Swift 4

You would need to use these two lines of code, in this specific order. All you need is to change the top and bottom value of the edge insets.

addButton.imageView?.contentMode = .scaleAspectFit
addButton.imageEdgeInsets = UIEdgeInsetsMake(10.0, 0.0, 10.0, 0.0)

Answer 2

Updated for Swift 3

yourButtonName.imageEdgeInsets = UIEdgeInsetsMake(10, 10, 10, 10)

Answer 3

Here is the other solution to scale an imageView of UIButton.

button.imageView?.layer.transform = CATransform3DMakeScale(0.8, 0.8, 0.8)

Answer 4

If your image is too large (and you can't/don't want to just made the image smaller), a combination of the first two answers works great.

addButton.imageView?.contentMode = .scaleAspectFit
addButton.imageEdgeInsets = UIEdgeInsetsMake(15.0, 15.0, 15.0, 5.0)

Unless you get the image insets just right, the image will be skewed without changing the contentMode.