Present a view in Playground
import Foundation
import XCPlayground
import UIKit
let view = UIView(frame: CGRect(x: 0, y: 0, width: 375, height: 667))
view.backgroundColor = UIColor.whiteColor()
XCPlaygroundPage.currentPage.liveView = view
let label = UILabel(frame: CGRect(x: 0, y: 0, width: 375, height: 30))
label.textAlignment = .Center
label.text = "Aloha"
label.center = view.center
view.addSubview(label)