protected override void SetupLayoutConstraints() { base.SetupLayoutConstraints(); this.SubviewsDoNotTranslateAutoresizingMaskIntoConstraints(); this.AddConstraints( HeaderLabel.WithSameCenterX(this), HeaderLabel.WithSameCenterY(this)); this.AddConstraints( ResultLabel.Below(HeaderLabel, 24), ResultLabel.WithSameCenterX(this)); this.AddConstraints( NextButton.Below(ResultLabel, 24), NextButton.WithSameCenterX(this)); }