标签:res 升级 hand type info data xpath highlight cin
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import UIKit //表格数据实体类 class ListItem : NSObject { var text: String init (text: String ) { self .text = text } } //单元格类 class MyTableViewCell : UITableViewCell , UITextFieldDelegate { //单元格内部标签(可输入) let label: UITextField //单元格左边距 var leftMarginForLabel: CGFloat = 15.0 //单元格数据 var listItem: ListItem ? { didSet { label.text = listItem!.text } } //单元格是否可编辑 var labelEditable: Bool ? { didSet { label.isUserInteractionEnabled = labelEditable! //如果是可以编辑的话,要加大左边距(因为左边有个删除按钮) leftMarginForLabel = labelEditable! ? 45.0 : 15.0 self .setNeedsLayout() } } //初始化 override init (style: UITableViewCellStyle , reuseIdentifier: String ?) { //初始化文本标签 label = UITextField (frame: CGRect .null) label.textColor = UIColor .black label.font = UIFont .systemFont(ofSize: 16) super . init (style: style, reuseIdentifier: reuseIdentifier) //设置文本标签代理 label.delegate = self label.contentVerticalAlignment = UIControlContentVerticalAlignment .center //添加文本标签 addSubview(label) } //布局 override func layoutSubviews() { super .layoutSubviews() label.frame = CGRect (x: leftMarginForLabel, y: 0, width: bounds.size.width - leftMarginForLabel, height: bounds.size.height) } //键盘回车 func textFieldShouldReturn(_ textField: UITextField ) -> Bool { textField.resignFirstResponder() return false } //结束编辑 func textFieldShouldEndEditing(_ textField: UITextField ) -> Bool { if listItem != nil { listItem?.text = textField.text! } return true } required init ?(coder aDecoder: NSCoder ) { fatalError( "init(coder:) has not been implemented" ) } } |
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import UIKit class ViewController : UIViewController , UITableViewDelegate , UITableViewDataSource { //表格 var tableView: UITableView ? //表格数据 var listItems = [ ListItem ]() override func viewDidLoad() { super .viewDidLoad() //初始化数据 listItems = [ ListItem (text: "这是条目1" ), ListItem (text: "这是条目2" ), ListItem (text: "这是条目3" ), ListItem (text: "这是条目4" ), ListItem (text: "这是条目5" ), ListItem (text: "这是条目6" ), ListItem (text: "这是条目7" ), ListItem (text: "这是条目8" ), ListItem (text: "这是条目9" ), ListItem (text: "这是条目10" ), ListItem (text: "这是条目11" ), ListItem (text: "这是条目12" ), ListItem (text: "这是条目13" ), ListItem (text: "这是条目14" ), ListItem (text: "这是条目15" ), ListItem (text: "这是条目16" ), ListItem (text: "这是条目17" )] //创建表视图 self .tableView = UITableView (frame: self .view.frame, style:.plain) self .tableView!.delegate = self self .tableView!.dataSource = self //创建一个重用的单元格 self .tableView!.register( MyTableViewCell . self , forCellReuseIdentifier: "tableCell" ) self .view.addSubview( self .tableView!) //监听键盘弹出通知 NotificationCenter . default .addObserver( self ,selector: #selector(keyboardWillShow(_:)), name: NSNotification . Name . UIKeyboardWillShow , object: nil ) //监听键盘隐藏通知 NotificationCenter . default .addObserver( self ,selector: #selector(keyboardWillHide(_:)), name: NSNotification . Name . UIKeyboardWillHide , object: nil ) } //导航栏编辑按钮点击 @IBAction func editBarBtnClick(_ sender: UIBarButtonItem ) { //在正常状态和编辑状态之间切换 if ( self .tableView!.isEditing == false ){ self .tableView!.setEditing( true , animated: true ) sender.title = "保存" } else { self .tableView!.setEditing( false , animated: true ) sender.title = "编辑" } //重新加载表数据(改变单元格输入框编辑/只读状态) self .tableView?.reloadData() } //在本例中,有1个分区 func numberOfSections( in tableView: UITableView ) -> Int { return 1 } //返回表格行数 func tableView(_ tableView: UITableView , numberOfRowsInSection section: Int ) -> Int { return listItems.count } //创建各单元显示内容(创建参数indexPath指定的单元) func tableView(_ tableView: UITableView , cellForRowAt indexPath: IndexPath ) -> UITableViewCell { let cell = tableView .dequeueReusableCell(withIdentifier: "tableCell" , for : indexPath) as ! MyTableViewCell //设置单元格内容 let item = listItems[(indexPath as NSIndexPath ).row] cell.listItem = item cell.accessoryType = UITableViewCellAccessoryType .disclosureIndicator //内容标签是否可编辑 cell.labelEditable = tableView.isEditing return cell } // UITableViewDelegate 方法,处理列表项的选中事件 func tableView(_ tableView: UITableView , didSelectRowAt indexPath: IndexPath ) { self .tableView!.deselectRow(at: indexPath, animated: true ) let itemString = listItems[(indexPath as NSIndexPath ).row].text let alertController = UIAlertController (title: "提示!" , message: "你选中了【\(itemString)】" , preferredStyle: .alert) let okAction = UIAlertAction (title: "确定" , style: .cancel, handler: nil ) alertController.addAction(okAction) self .present(alertController, animated: true , completion: nil ) } //是否有删除功能 func tableView(_ tableView: UITableView , editingStyleForRowAt indexPath: IndexPath ) -> UITableViewCellEditingStyle { if ( self .tableView!.isEditing == false ){ return UITableViewCellEditingStyle .none } else { return UITableViewCellEditingStyle .delete } } //删除提示 func tableView(_ tableView: UITableView , titleForDeleteConfirmationButtonForRowAt indexPath: IndexPath ) -> String ? { return "确定删除?" } //编辑完毕(这里只有删除操作) func tableView(_ tableView: UITableView , commit editingStyle: UITableViewCellEditingStyle , forRowAt indexPath: IndexPath ) { if (editingStyle == UITableViewCellEditingStyle .delete) { self .listItems.remove(at: (indexPath as NSIndexPath ).row) self .tableView!.reloadData() print ( "你确认了删除按钮" ) } } //在编辑状态,可以拖动设置cell位置 func tableView(_ tableView: UITableView , canMoveRowAt indexPath: IndexPath ) -> Bool { return true } //移动cell事件 func tableView(_ tableView: UITableView , moveRowAt fromIndexPath: IndexPath , to toIndexPath: IndexPath ) { if fromIndexPath != toIndexPath{ //获取移动行对应的值 let itemValue: ListItem = listItems[(fromIndexPath as NSIndexPath ).row] //删除移动的值 listItems.remove(at: (fromIndexPath as NSIndexPath ).row) //如果移动区域大于现有行数,直接在最后添加移动的值 if (toIndexPath as NSIndexPath ).row > listItems.count{ listItems.append(itemValue) } else { //没有超过最大行数,则在目标位置添加刚才删除的值 listItems.insert(itemValue, at:(toIndexPath as NSIndexPath ).row) } } } // 键盘显示 func keyboardWillShow(_ notification: Notification ) { let userInfo = (notification as NSNotification ).userInfo! //键盘尺寸 let keyboardSize = (userInfo[ UIKeyboardFrameBeginUserInfoKey ] as ! NSValue ).cgRectValue var contentInsets: UIEdgeInsets //判断是横屏还是竖屏 let statusBarOrientation = UIApplication .shared.statusBarOrientation if UIInterfaceOrientationIsPortrait (statusBarOrientation) { contentInsets = UIEdgeInsetsMake (64.0, 0.0, (keyboardSize.height), 0.0); } else { contentInsets = UIEdgeInsetsMake (64.0, 0.0, (keyboardSize.width), 0.0); } //tableview的contentview的底部大小 self .tableView!.contentInset = contentInsets; self .tableView!.scrollIndicatorInsets = contentInsets; } // 键盘隐藏 func keyboardWillHide(_ notification: Notification ) { //还原tableview的contentview大小 let contentInsets: UIEdgeInsets = UIEdgeInsetsMake (64.0, 0.0, 0, 0.0); self .tableView!.contentInset = contentInsets self .tableView!.scrollIndicatorInsets = contentInsets } //页面移除时 override func viewDidDisappear(_ animated: Bool ) { super .viewDidAppear(animated) //取消键盘监听通知 NotificationCenter . default .removeObserver( self ) } override func didReceiveMemoryWarning() { super .didReceiveMemoryWarning() } } |
Swift - 可编辑表格样例(可直接编辑单元格中内容、移动删除单元格)
标签:res 升级 hand type info data xpath highlight cin
原文地址:http://www.cnblogs.com/Free-Thinker/p/7264300.html