mirror of https://github.com/SnapKit/SnapKit
99 lines
2.6 KiB
Swift
99 lines
2.6 KiB
Swift
//
|
|
// 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()
|
|
}
|
|
|
|
}
|