Implementation of iOS Tableview slide deletion and mobile cell

Implementation of iOS Tableview slide deletion and mobile cell

MOOC learned how to use tableview on the Internet and suddenly made me feel that iOS is much simpler than android. Maybe it is my feeling. The process of dynamically moving items is a little complicated because android implements list view-side deletion. However, iOS only needs to rewrite several methods. I can only say that iOS is amazing! I followed it.
Project address: Todo

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Navigate controller implements a navigation bar. View controller implements a tableview and tableviewCell.

//// ViewController. swift // Todo /// Created by zhouyihua on 15/8/17. // Copyright (c) 2015 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. go to the playground, date: dateFromString )!), TodoModel (id: 2, image: shopping-cart-selected, title: 2. shopping, date: dateFromString (2014-10-28 )!), TodoModel (id: 3, image: phone-selected, title: 3. Call, date: dateFromString )!), TodoModel (id: 4, image: travel-selected, title: 4. Travel to Europe, date: dateFromString ()!)] NavigationItem. leftBarButtonItem = editButtonItem () var contentOffset = tableView. contentOffset. y + = searchDisplayController !. SearchBar. frame. size. height tableView. contentOffset = contentOffset} override func didReceiveMemoryWarning () {super. didReceiveMemoryWarning () // Dispose of any resources that can be recreated .} // The method for returning the number of loaded entries is from UITableViewdelegate func tableView (tableView: UITableView, numberOfRowsInSection section: Int)-> Int {if tableView = searchDisplayController ?. SearchResultsTableView {return filtertodos. count} else {return todos. count }}// Row display. implementers shocould * always * try to reuse cells by setting each cell's reuseIdentifier and querying for available reusable cells with outputs: // Cell gets various attributes set automatically based on table (separators) and data source (accessory views, editing controls) // return ta The cell of bleview is the item func tableView (tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) of list view-> UITableViewCell {let cell = self. tableView. Destroy (todocell)! 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)! UILabel var date = cell. viewWithTag (104)! UILabel var image = cell. viewWithTag (102)! 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 = response. 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)} // click the "OK" button to unsegue the operation @ IBAction func close (segue: UIStoryboardSegue) {println (close) tableView. reloadData ()} // implement slide deletion. The method is from UITableViewDelegate func tableView (tableView: UITableView, canMoveRowAtIndexPath indexPath: NSIndexPath)-> Bool {return editing} // implement cell movement, the method is from UITableViewDelegate func tableView (tableView: UITableView, moveRowAtIndexPath sourceIndexPath: NSIndexPath, toIndexPath destinationIndexPath: NSIndexPath) {let todo = todos. removeAtIndex (sourceIndexPath. row) todos. insert (todo, atIndex: destinationIndexPath. row )}}

The implementation of tableview is obviously to give a Datasoure and a delegate. View controller extension UITableViewDataSource (processing data sources) and UITableViewDelegate (processing various tableview operations)

Finally, remember to bind datasoure and delegate. Is it easy. Thanks to me, the android app is awesome !!