iOS Tableview側滑刪除和移動cell的實現

iOS Tableview側滑刪除和移動cell的實現

慕課網上學習了tableview的使用，突然讓我覺得iOS比android簡單多了，可能是我的感覺吧。因為android實現list view側拉刪除，動態移動item過程還是稍微有點複雜的。但是iOS卻只需要重寫幾個方法就可以實現了。我只能說iOS太神奇！我就跟著做了一下。
項目地址：Todo

看效果，UI還可以。先上stZ喎?http://www.bkjia.com/kf/ware/vc/" target="_blank" class="keylink">vcnlib2FyZL3hubnNvKO6PGJyIC8+DQo8aW1nIGFsdD0="這裡寫圖片描述" src="http://www.bkjia.com/uploads/allimg/150829/12554R956-4.png" title="\" />
navigate controller 實現一個導覽列。view controller 實現一個tableview,tableviewCell 。

////  ViewController.swift//  Todo////  Created by zhouyihua on 15/8/17.//  Copyright (c) 2015年 xiebangyuan. All rights reserved.//import UIKitvar todos:[TodoModel] = []var filtertodos:[TodoModel] = []func dateFromString(dateStr:String) -> NSDate?{    let dateFormatter = NSDateFormatter()    dateFormatter.dateFormat = yyyy-MM-dd    let date = dateFormatter.dateFromString(dateStr)    return date}class ViewController: UIViewController ,UITableViewDataSource,UITableViewDelegate,UISearchDisplayDelegate{    @IBOutlet weak var tableView: UITableView!    override func viewDidLoad() {        super.viewDidLoad()        // Do any additional setup after loading the view, typically from a nib.        todos = [TodoModel(id: 1, image: child-selected, title: 1. 去遊樂場, date: dateFromString(2014-10-20)!),            TodoModel(id: 2, image: shopping-cart-selected, title: 2. 購物, date: dateFromString(2014-10-28)!),            TodoModel(id: 3, image: phone-selected, title: 3. 打電話, date: dateFromString(2014-10-30)!),            TodoModel(id: 4, image: travel-selected, title: 4. Travel to Europe, date: dateFromString(2014-10-31)!)]        navigationItem.leftBarButtonItem = editButtonItem()        var contentOffset = tableView.contentOffset        contentOffset.y += searchDisplayController!.searchBar.frame.size.height        tableView.contentOffset = contentOffset    }    override func didReceiveMemoryWarning() {        super.didReceiveMemoryWarning()        // Dispose of any resources that can be recreated.    }    //返回載入的條數 方法來自UITableViewdelegate    func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int{        if tableView == searchDisplayController?.searchResultsTableView {            return filtertodos.count        }else{            return todos.count        }    }    // Row display. Implementers should *always* try to reuse cells by setting each cell's reuseIdentifier and querying for available reusable cells with dequeueReusableCellWithIdentifier:    // Cell gets various attributes set automatically based on table (separators) and data source (accessory views, editing controls)    //返回tableview的cell 就是list view的 item    func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell{        let cell = self.tableView.dequeueReusableCellWithIdentifier(todocell) as! UITableViewCell        var todo:TodoModel?        if tableView == searchDisplayController?.searchResultsTableView {            todo = filtertodos[indexPath.row] as TodoModel        }else{            todo = todos[indexPath.row] as TodoModel        }        var title = cell.viewWithTag(103) as! UILabel        var date = cell.viewWithTag(104) as! UILabel        var image = cell.viewWithTag(102) as! UIImageView        image.image = UIImage(named:todo!.image)        title.text = todo!.title        let locale = NSLocale.currentLocale()        let dateFormat = NSDateFormatter.dateFormatFromTemplate(yyyy-MM-dd, options: 0, locale: locale)        let dateFormatter = NSDateFormatter()            dateFormatter.dateFormat = dateFormat            date.text = dateFormatter.stringFromDate(todo!.date)        return cell    }    //mark-UITableViewdelegate    func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath){        if editingStyle == UITableViewCellEditingStyle.Delete{            todos.removeAtIndex(indexPath.row)            self.tableView.deleteRowsAtIndexPaths([indexPath],withRowAnimation: UITableViewRowAnimation.Automatic)        }    }    override func setEditing(editing: Bool, animated: Bool) {        super.setEditing(editing, animated: animated)        self.tableView.setEditing(editing, animated: animated)    }    //點擊確定按鈕 unsegue 操作     @IBAction func close(segue:UIStoryboardSegue){        println(close)        tableView.reloadData()    }    //實現側滑刪除，方法來自 UITableViewDelegate    func tableView(tableView: UITableView, canMoveRowAtIndexPath indexPath: NSIndexPath) -> Bool{        return editing    }   //實現cell移動，方法來自 UITableViewDelegate    func tableView(tableView: UITableView, moveRowAtIndexPath sourceIndexPath: NSIndexPath, toIndexPath destinationIndexPath: NSIndexPath){        let todo = todos.removeAtIndex(sourceIndexPath.row)        todos.insert(todo, atIndex: destinationIndexPath.row)    }}

實現tableview 很明顯就是給一個Datasoure和一個delegate。view controller extension UITableViewDataSource(處理資料來源),UITableViewDelegate （處理tableview各種操作）

最後記得綁定datasoure和delegate 。貌似是不是很簡單。我靠，android程式猿的路過點贊！！