IOS实现3DTouch在tableView的简单应用(swift版)

之前记录过OC版实现3D Touch功能的小小演示，最近无事整整swift，也弄个swift版的3D Touoch。。。

上代码。

let dic2 = ["mm":"http://b.hiphotos.baidu.com/image/h%3D360/sign=ff34dff8bd389b5027ffe654b537e5f1/a686c9177f3e670900d880193fc79f3df9dc5578.jpg"]
let dic3 = ["mmm":"http://a.hiphotos.baidu.com/image/h%3D360/sign=f527ab2f4b540923b5696578a259d1dc/dcc451da81cb39dbce6b325ad2160924ab183016.jpg"]
let dic4 = ["mmmm":"http://d.hiphotos.baidu.com/image/h%3D360/sign=81d5d22779f40ad10ae4c1e5672d1151/d439b6003af33a8762fee505c45c10385343b51a.jpg"]
let dic5 = ["mmmmm":"http://d.hiphotos.baidu.com/image/h%3D200/sign=8d3a52a04ded2e73e3e9812cb701a16d/f7246b600c33874450b89258560fd9f9d72aa091.jpg"]
let dic6 = ["mmmmmm":"http://h.hiphotos.baidu.com/image/h%3D360/sign=e53dee25d5ca7bcb627bc1298e086b3f/a2cc7cd98d1001e9ae32c3e9ba0e7bec55e797ce.jpg"]
let dic7 = ["mmmmm":"http://g.hiphotos.baidu.com/image/h%3D360/sign=8cb0e6191a178a82d13c79a6c602737f/6c224f4a20a446230761b9b79c22720e0df3d7bf.jpg"]
let dic8 = ["mmmm":"http://a.hiphotos.baidu.com/image/h%3D360/sign=80285822f9f2b211fb2e8348fa806511/bd315c6034a85edf1da1c0724b540923dd5475b5.jpg"]
let dic9 = ["mmm":"http://e.hiphotos.baidu.com/image/h%3D360/sign=708629f379cb0a469a228d3f5b62f63e/7dd98d1001e939015d4a463779ec54e736d1966b.jpg"]
let dic10 = ["mm":"http://h.hiphotos.baidu.com/image/h%3D360/sign=95102c30bc096b639e1958563c338733/3801213fb80e7beccbb1e8fe2d2eb9389b506b42.jpg"]
let dic11 = ["m":"http://a.hiphotos.baidu.com/image/h%3D360/sign=cbd227bf8e5494ee9822091f1df5e0e1/c2cec3fdfc039245ee84470f8594a4c27d1e25f8.jpg"]
let dic12 = ["mm":"http://e.hiphotos.baidu.com/image/h%3D360/sign=87824d652adda3cc14e4be2631e83905/b03533fa828ba61e64671cd54534970a314e59bb.jpg"]
itemArray.append(dic1)
itemArray.append(dic2)
itemArray.append(dic3)
itemArray.append(dic4)
itemArray.append(dic5)
itemArray.append(dic6)
itemArray.append(dic7)
itemArray.append(dic8)
itemArray.append(dic9)
itemArray.append(dic10)
itemArray.append(dic11)
itemArray.append(dic12)
}

func initSubView()
{
self.tableView = UITableView(frame: CGRectMake(0, 0, McConstant.screenWidth, McConstant.screenHeight), style: UITableViewStyle.Plain)
self.tableView?.backgroundColor = UIColor.clearColor()
self.tableView?.dataSource = self
self.tableView?.delegate = self
self.view.addSubview(self.tableView!)
}

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

func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return itemArray.count
}

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell = tableView.dequeueReusableCellWithIdentifier(ModuleOneVC.cellIdentifer)
if cell == nil {
cell = UITableViewCell(style: UITableViewCellStyle.Default, reuseIdentifier: ModuleOneVC.cellIdentifer)
if self.isCan3DTouch {
//注册3D Touch
registerForPreviewingWithDelegate(self, sourceView: (cell?.contentView)!)
}
}
let dic = itemArray[indexPath.row]
cell?.textLabel?.text = Array(dic.keys)[0]
cell?.textLabel?.textColor = UIColor.blackColor()
cell?.backgroundColor = UIColor.clearColor()
return cell!
}

func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
return 50
}

func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
tableView.deselectRowAtIndexPath(indexPath, animated: true)
let dic = itemArray[indexPath.row]
self.navigationController?.pushViewController(DDDTouchPeekVC(imgUrl: Array(dic.values)[0]), animated: true)

}

//mark -UIViewControllerPreviewingDelegate 3D Touch代理方法
func previewingContext(previewingContext: UIViewControllerPreviewing, viewControllerForLocation location: CGPoint) -> UIViewController? {
let indexPath = self.tableView?.indexPathForCell(previewingContext.sourceView.superview as! UITableViewCell)
let dic = itemArray[indexPath!.row]
let peekVC = DDDTouchPeekVC(imgUrl: Array(dic.values)[0])
peekVC.preferredCOntentSize= CGSizeMake(0, 400)
return peekVC
}

func previewingContext(previewingContext: UIViewControllerPreviewing, commitViewController viewControllerToCommit: UIViewController) {
self.navigationController?.pushViewController(viewControllerToCommit, animated: true)
}

} ***以上演示用图片来源均来自百度随机搜索。

2.pop界面控制器

DDDTouchPeekVC.swift

import UIKit

class DDDTouchPeekVC: McBaseViewController {
    var etag:String?
    var potoView:UIImageView?
    var imageUrl:String?
    init(imgUrl:String){
        super.init(nibName: nil, bundle: nil)
        self.imageUrl = imgUrl
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
        self.setCustomTitle("3D TouchPeekVC")
        self.initSubView()
        self.initData()
    }

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

    func initData()
    {
        let url = NSURL.init(string: imageUrl!)
        let request = NSURLRequest(URL: url!)
        let task = NSURLSession.sharedSession().dataTaskWithRequest(request) { (dataa, response, error) in
            dispatch_async(dispatch_get_main_queue(), {
                //
                self.potoView?.image = UIImage(data: dataa!)
            })
        }
        task.resume()
        
    }
    func initSubView(){
        let titleView = UILabel(frame: CGRectMake(0, 0, McConstant.screenWidth, 64))
        titleView.backgroundColor = UIColor(red: 52/255, green: 222/255, blue: 136/255, alpha: 1).colorWithAlphaComponent(0.8)
        titleView.textAlignment = NSTextAlignment.Center
        titleView.text = "PeekView"
        self.view.addSubview(titleView)
        
        self.potoView = UIImageView(frame: CGRect(x: 0, y: 64, width: McConstant.screenWidth, height: McConstant.screenHeight-60))
        self.potoView?.cOntentMode= UIViewContentMode.ScaleToFill
        self.view.addSubview(self.potoView!)
    }
    //pragma mark - 底部预览界面选项
    override func previewActionItems() -> [UIPreviewActionItem] {
        //
        let action1 = UIPreviewAction(title: "点赞", style: .Default) { (action, previewViewController) in
            //
        }
        let action2 = UIPreviewAction(title: "评论", style: .Default) { (action, previewViewController) in
            //
        }
        let action3 = UIPreviewAction(title: "嘿嘿", style: .Default) { (action, previewViewController) in
            //
        }
        let action4 = UIPreviewAction(title: "呵呵", style: .Default) { (action, previewViewController) in
            //
        }
        let actiOnItems= [action1,action2,action3,action4]
        return actionItems
        
    }

}

至此，3D Touch功能在tableView上列表的简单功能就完成了， 这边是peek 、pop展示的是加载一张百度连接的图片。匆忙而就，写得不详细，如有错误，谅解。。。

上效果图