OAStackView stack

/*func initNewMapview() {
let stackView1 = OAStackView(arrangedSubviews: [
mapview,
address
])
stackView1.alignment = .Fill
stackView1.distribution = .Fill
stackView1.axis = .Vertical
stackView1.spacing = 25
self.view.addSubview(stackView1)

constrain(stackView1,self.view) { (stackViewProxy, viewProxy) in
stackViewProxy.width == self.view.frame.size.width - 60
stackViewProxy.centerX == viewProxy.centerX
stackViewProxy.centerY == viewProxy.centerY
stackViewProxy.height == self.view.frame.size.height / 4 + 110
}

let stackView2 = OAStackView(arrangedSubviews: [
stackView1,
nextButton
])

stackView2.alignment = .Center
stackView2.distribution = .Fill
stackView2.axis = .Vertical
stackView2.spacing = 25
self.view.addSubview(stackView2)

constrain(stackView2,self.view) { (stackViewProxy, viewProxy) in
stackViewProxy.width == self.view.frame.size.width - 60
stackViewProxy.centerX == viewProxy.centerX
stackViewProxy.centerY == viewProxy.centerY
stackViewProxy.height == self.view.frame.size.height / 4 + 110
}

}*/