简单实现界面的侧滑效果（Swift）仿QQ侧滑效果

viewController

//
//  ViewController.swift
//  MGSlideViewDemo
//
//  Created by ming on 16/6/5.
//  Copyright © 2016年 ming. All rights reserved.
//

import UIKit
// 定义几个常量，可以自己修改值
let MGScreenWidth = UIScreen.mainScreen().bounds.width
let offsetDetailRight:CGFloat = 90
let offsetMainRight:CGFloat = 320

class ViewController: UIViewController,UIGestureRecognizerDelegate {

var detailView: UIView?
var coverView: UIView?
var mainView: UIView?

override func viewDidLoad() {
super.viewDidLoad()

setUpChildrenView()

setupGestureRecognizer()
}

// 创建右边的控制器
func setUpChildrenView(){
let detailViewController = MGDetailViewController()
self.addChildViewController(detailViewController)
detailViewController.view.frame = CGRectMake(-offsetDetailRight,self.view.frame.origin.y, self.view.frame.width, self.view.frame.height)
self.view.addSubview(detailViewController.view)
self.detailView = detailViewController.view

let mainViewController = MGMainTViewController()
self.addChildViewController(mainViewController)

mainViewController.view.frame = self.view.bounds
self.view.addSubview(mainViewController.view)
self.mainView = mainViewController.view;
self.mainView!.backgroundColor = UIColor.greenColor()
self.mainView!.addObserver(self, forKeyPath: "frame", options: NSKeyValueObservingOptions.Old, context: nil)

// 添加coverView
let coverView = UIView()
coverView.frame = self.mainView!.frame
coverView.hidden = true
coverView.alpha = 0.9
self.mainView!.addSubview(coverView)
self.coverView = coverView;
let tap = UITapGestureRecognizer(target: self, action: Selector("tap"))
self.coverView?.addGestureRecognizer(tap)
}

func tap(){
if self.mainView!.frame.origin.x != 0 {

UIView.animateWithDuration(0.25, animations: { () -> Void in

self.mainView!.frame = CGRectMake(0, 0, self.view.frame.width, self.view.frame.height);
self.detailView!.frame = CGRectMake(-offsetDetailRight, self.view.frame.origin.y, self.view.frame.width, self.view.frame.height);
});
}
}
// KVO 监听mainView的frame的变化
override func observeValueForKeyPath(keyPath: String?, ofObject object: AnyObject?, change: [String : AnyObject]?, context: UnsafeMutablePointer<Void>) {
if self.mainView!.frame.origin.x == offsetMainRight {
self.coverView?.hidden = false;
} else {
self.coverView?.hidden = true;
}
}

// 添加pan手势
func setupGestureRecognizer(){
let pan = UIPanGestureRecognizer(target: self, action: Selector("pan:"))
//        pan.delegate = self;
self.mainView!.addGestureRecognizer(pan)
}
func pan(pan:UIPanGestureRecognizer){
let transP = pan.translationInView(self.view)

self.mainView!.frame = mainFrameWithoffsetX(transP.x)
pan.setTranslation(CGPointZero, inView: self.mainView!)

self.detailView!.frame = detailFrameWithoffsetX(transP.x)
pan.setTranslation(CGPointZero, inView: self.detailView!)

if pan.state == UIGestureRecognizerState.Ended {
var targetMain:CGFloat = 0
var targetDetail:CGFloat = offsetDetailRight
if (self.mainView!.frame.origin.x > MGScreenWidth * 0.5) {
targetMain = offsetMainRight
targetDetail = 0;
}

let offsetMainX:CGFloat = targetMain - self.mainView!.frame.origin.x
let offsetDetailX:CGFloat = -targetDetail

UIView.animateWithDuration(0.25, animations: { () -> Void in
self.mainView!.frame = self.mainFrameWithoffsetX(offsetMainX)
self.detailView!.frame = CGRectMake(offsetDetailX, 0, self.view.frame.width, self.view.frame.height)
})
}
}

// 返回主View的frame
func mainFrameWithoffsetX(offsetX: CGFloat) -> CGRect{
var frame = self.mainView!.frame
frame.origin.x += offsetX
if frame.origin.x <= 0 {
frame.origin.x = 0
}
return frame
}

// 返回detailView的frame
func detailFrameWithoffsetX(offsetX: CGFloat) -> CGRect{
var frame = self.detailView?.frame
frame!.origin.x += (offsetX * offsetDetailRight / offsetMainRight)
if frame!.origin.x >= 0 {
frame!.origin.x = 0
}
return frame!
}

// MARK: - UIGestureRecognizerDelegate

override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}

MGDetailViewController

//
//  MGDetailViewController.swift
//  MGSlideViewDemo
//
//  Created by ming on 16/6/5.
//  Copyright © 2016年 ming. All rights reserved.
//

import UIKit

let cellId = "cellId"
class MGDetailViewController: UIViewController,UITableViewDataSource,UITableViewDelegate {
@IBOutlet weak var tableView: UITableView!

var array:[String]?

override func viewDidLoad() {
super.viewDidLoad()

self.array = ["开通会员", "QQ钱包", "个性装扮", "我的收藏", "我的相册", "我的文件", "我的名片夹"]
self.tableView.separatorStyle = UITableViewCellSeparatorStyle.None

self.tableView.registerClass(UITableViewCell.self, forCellReuseIdentifier: cellId)
}

override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}

// MARK: - UITableViewDataSource
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.array!.count
}

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier(cellId)

cell!.backgroundColor = UIColor.clearColor()
cell!.textLabel!.text = self.array![indexPath.row]
cell!.textLabel!.textColor = UIColor.purpleColor()
cell!.textLabel!.font = UIFont.systemFontOfSize(16)
let indexname = self.array![indexPath.row]
cell!.imageView!.image = UIImage(named: indexname)
return cell!

}
}

MGMainTViewController

//
//  MGMainTViewController.swift
//  MGSlideViewDemo
//
//  Created by ming on 16/6/6.
//  Copyright © 2016年 ming. All rights reserved.
//

import UIKit

class MGMainTViewController: UITableViewController {

override func viewDidLoad() {
super.viewDidLoad()
self.tableView.registerClass(UITableViewCell.self, forCellReuseIdentifier: "reuseIdentifier")
}

override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()

}

// MARK: - Table view data source

override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
// #warning Incomplete implementation, return the number of sections
return 1
}

override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// #warning Incomplete implementation, return the number of rows
return 40
}

override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("reuseIdentifier", forIndexPath: indexPath)

cell.textLabel?.text = "明明就是你\(indexPath.row)行测试"
return cell
}

}