Adding layout constraints to a button

Question

Refreshing my self with Swift ... I want to center this button loginButton.center = self.view.center at the bottom of the view. The current code centers the button perfectly horizontally and vertically..

I have tried messing around with CGPoints and subView's but have had no luck.

@Honey the only piece of code missing was this and thats it `let loginButton:PPLoginButton = PPLoginButton.init()` — Joshua Paulsen, Sep 17 '18 at 16:03
@JoshuaPaulsen it's nice to say that the question title needs constraints instead of frame layout — Shehata Gamal, Sep 17 '18 at 18:38

André Slotta · Answer 1 · 2018-09-17T16:50:36.803

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Seems like you are not using Auto Layout. So this is what you are looking for:

button.center = CGPoint(x: view.bounds.width / 2,
                        y: view.bounds.height - button.bounds.height / 2)

If you want to use Auto Layout instead go with Sh_Khan's answer.

edited Sep 17 '18 at 16:50

answered Sep 17 '18 at 16:44

André Slotta

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score 0 · Answer 2 · answered Sep 17 '18 at 16:45

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 let pos = CGPoint(x: self.view.bounds.midX, y: self.view.bounds.maxY - 80)
       loginButton.center = pos

       loginButton.translatesAutoresizingMaskIntoConstraints = false

       self.view.addSubview(loginButton)

answered Sep 17 '18 at 16:45

Joshua Paulsen

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You are mixing auto layout (`loginButton.translatesAutoresizingMaskIntoConstraints = false`) with setting frames manually (`loginButton.center = pos`) in this answer. – André Slotta Sep 17 '18 at 16:47
@AndréSlotta Thanks! – Joshua Paulsen Sep 17 '18 at 18:30

Adding layout constraints to a button

2 Answers2