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//
// SimpleLayoutViewController.swift
// SnapKit
//
// Created by Spiros Gerokostas on 01/03/16.
// Copyright © 2016 SnapKit Team. All rights reserved.
//
import UIKit
class SimpleLayoutViewController: UIViewController {
var didSetupConstraints = false
let blackView: UIView = {
let view = UIView()
view.backgroundColor = .blackColor()
return view
}()
let redView: UIView = {
let view = UIView()
view.backgroundColor = .redColor()
return view
}()
let yellowView: UIView = {
let view = UIView()
view.backgroundColor = .yellowColor()
return view
}()
let blueView: UIView = {
let view = UIView()
view.backgroundColor = .blueColor()
return view
}()
let greenView: UIView = {
let view = UIView()
view.backgroundColor = .greenColor()
return view
}()
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = UIColor.whiteColor()
view.addSubview(blackView)
view.addSubview(redView)
view.addSubview(yellowView)
view.addSubview(blueView)
view.addSubview(greenView)
view.setNeedsUpdateConstraints()
}
override func updateViewConstraints() {
if (!didSetupConstraints) {
blackView.snp_makeConstraints { make in
make.center.equalTo(view)
make.size.equalTo(CGSizeMake(100.0, 100.0))
}
redView.snp_makeConstraints { make in
make.top.equalTo(blackView.snp_bottom).offset(20.0)
make.left.equalTo(20.0)
make.size.equalTo(CGSizeMake(100.0, 100.0))
}
yellowView.snp_makeConstraints { make in
make.top.equalTo(blackView.snp_bottom).offset(20.0)
make.left.equalTo(blackView.snp_right).offset(20.0)
make.size.equalTo(CGSizeMake(100.0, 100.0))
}
blueView.snp_makeConstraints { make in
make.bottom.equalTo(blackView.snp_top).offset(-20.0)
make.left.equalTo(blackView.snp_right).offset(20.0)
make.size.equalTo(CGSizeMake(100.0, 100.0))
}
greenView.snp_makeConstraints { make in
make.bottom.equalTo(blackView.snp_top).offset(-20.0)
make.right.equalTo(blackView.snp_left).offset(-20.0)
make.size.equalTo(CGSizeMake(100.0, 100.0))
}
didSetupConstraints = true
}
super.updateViewConstraints()
}
}