Swift corner radius proportions for all device types.

Question

Dev-TimMd OP

Created Dec ’21

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Hey. Hi. I assigned a corner radius of 30 to my uibutton with this code:

        startButton.layer.cornerRadius = 30

So far it looks very good on an iphone 13 pro max, but only there. So my question is: How can I create a corner radius that has the same proportions on all iphones? So looks good everywhere? (My button changes heigh depending on the heigh of the user's device:)

stackView1.heightAnchor.constraint(equalToConstant: height * 0.065).isActive = true

Can somebody help me with it? Greetings

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Answer 1

Claude31 OP

Dec ’21

I would do this:

save the height of the button (as for iPhone 13 pro max, probably defined in IB) in

var defautButtonHeight: CGFloat

then compute the radius:

startButton.layer.cornerRadius = 30 * startButton.bounds.height / defautButtonHeight

1